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Our 10 years of Lithium Iron Phosphate experience shared within thousands of articles, hundrends of tests and examples.


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16.02.2018
 
Initial charging FAQ

Initial charging FAQ

Check these FAQ published on our blog to understand the initial battery charging

 

We remind all users of the LFP cells and LP batteries that the cells and batteries MUST be charged to full voltage level BEFORE assembling into a pack and before starting to be used.  source

The new 3.2V LFP cells delivered from the warehouse are partially charged. However before the first use, it is essential to charge each cell to full capacitysource

   ...more >>

16.02.2018
 
Maximal voltage during Initial charge of LiFePO4

Maximal voltage during Initial charge of LiFePO4

 I want to make the initial charge of all the LiFePO4 cells to the same maximal voltage level of 4.0V. How can I do that?

 

EDIT: This article gives the example of 4.00V charge level. The same information is to applied for charging to other voltage levels: e.g. 3.65V, 3.70V, 3.80V, 3.90V. Different voltage levels may be applied for initial charging based on the manufacturer specification.

ANSWER: The best way it to find a power supply or a charger that will charge to the 4.0V directly.  Another solution is to charge using the laboratory power supply or the regulated power supply that allows to set the final (maximal) voltage limit. We suggest to check with the local electronic components suppliers for these products.

   ...more >>

16.02.2018
 
Initial charge voltage levels of LiFePO4

Voltage levels of LiFePO

 

 Initial charge voltage levels

Question: I wish to equip my workshop with the proper tools. Can you offer me following chargers: one model with cut off voltage at 3.65V, one model with cut off voltage at 3.80V and one model with cut off voltage at 4.00V?

Answer: There is no need to have so many different chargers.  The typical chargers that are sold by GWL charge to 3.65V (for single cell).  Please see some additional comments.

   ...more >>

09.02.2018
 
LFP as starting battery

LFP as starting battery

LFP as a starting battery – two concerns

Question: I want to use the LFP battery (4x 3.2V cells) for starting of my car. What SBM should I use to protect the battery?

You cannot use a SBM to protect the starting battery. For starting the car, the current will be very high, hundreds or even nearly 1000 Amps, it is not possible to disconnect such high currents.

WARNING: Additionally it is not possible to disconnect the battery from vehicle circuits. The car electronics may burn or become faulty of the battery is suddenly removed from the circuit, as a result of disconnection, during the operation (when the engine is running).

   ...more >>

09.02.2018
 
History of LiFePO4 Winston technology

History of LiFePO4 technology

Difference between Winston Battery and other brands (1)

What is the primary difference between the Winston Battery LiFePO4 products and other brands that also offer prismatic cells?

1. Technology history

Thundersky Winston Battery

The Thunder Sky Winston Battery company was the originator of the large capacity technology for the prismatic cells. The technology was created by Mr. Winston Chung. By means of partnerships with several companies TS-WB transferred the production facilities to partner factories. However the core know-how and technology processes were retained by Mr. Winston Chung.

   ...more >>

09.02.2018
 
Welcome in 2018

Best wishes in 2018

Welcome in 2018!

It is the 10th year of our battery related activities. We started in 2008 with the support LiFePO4 high power industrial cells.  We keep working after the 10 years and we keep building on our experience over the many years. 

Stay with us for more news and details. 

The GWL/Power team!

09.02.2018
 
Winston shipment in February

     Winston shipment February 2018 

    

 

The shipment of Winston Battery cells

The shipments of the Winston Battery cells are on the way, arriving in end of February and early March. Get ready for your orders. Contact the GWL Power team for more inquiries.  

09.02.2018
 
ThunderSky Winston new Factory

Winston Factory

Winston Battery New Factory – Winston Battery (Changtai) Limited

All cells delivered since mid 2017 have been made in the new factory. The factory provides enough space to accommodate the growing demands for the LFP prismatic cells. 

21.12.2017
 
The voltage levels for BMS

 

he BMS provided by GWL are primarily designed for the LFP cells (2.0V to 3.8V). Some BMS models support the LTO and Li-Ion cells as well. 

BMS123Smart - supports LFP and Li-Ion, does not support LTO 

BMS2405 - supports LFP,  Li-Ion and LTO

   ...more >>

18.12.2017
 
SBM for 24 cells (72V)

 

The SBM board SBM24/40 is specially designed for high-power EV-Bikes and e-Scooter projects with voltage 72V (24 LiFePO4 cells).

18.12.2017
 
Winston Battery - New Factory

A rare photo from the WB factory….

01.12.2017
 
Check the batteries (cells) before the installation!

 

Always check the technical specification of the cells and other products BEFORE the installation. 

Check the voltage, polarity, dimensions, mechanical shape, the proper design of the terminals, etc. Be sure to report any strange conditions to us BEFORE the operation and installation of the cell or other product. 

We will be happy to provide support for any irregular situation.

Learn more at the “Important information for batteries” page.

01.12.2017
 
The condition of the safety valve

 

Question: When making the regular inspection of the battery pack, I noticed that there is some salt-like powder around the safety valve. How does it come about?

Answer:

1. New cells

All cells shipped by GWL/Power are visually inspected before delivery. They are delivered in 100% perfect condition. If you receive a new cell right from the shipment and there is some dirt or moisture around the terminal, you should contact the shipping agent and place a complaint about the damage during the delivery. You can also contact GWL/Power for additional assistance prior using the cell.

2. Used cells – regular maintenance

As concerns cells that are used for some time already, these cells should be inspected regularly every few-hundred cycles. See support info here. There should be no leakage or substance around the terminals or around the safety valve. We suggest cleaning the cells every time the inspection is made.  You can use a lightly wet cloth to clean the outside of the cells.

   ...more >>

21.11.2017
 
How often should I check my cells (or my battery pack)?

Check_cells

 

The answer depends on the type of application. See some examples.

1. Simple installations

Simple installations with one battery (12V) or with just a few cells do not need any special inspections. If you have a SMB to handle the protection of the pack, you can just monitor the voltage level. This kind of pack should be inspected once or two times in a year. Or perhaps each time after a longer pause in usage.  Note: do not forget to disconnect all electronics if not using the pack.  The pack should have a dual protection, as explained here.

 

2. Advanced installations

More advanced installations (typically with 8 cells and more) should be monitored regularly. It is recommended that the inspection of the pack is performed in these intervals (ie, after number of discharge / charge cycles):

   ...more >>

09.11.2017
 
High power cells at GWL/Power Booth at Intersolar / ESS 2017

 

For 8+ years, GWL/Power’s main focus is on the large industrial prismatic cells for energy storage, traction systems and all purpose applications. 

Together with our key supplier Thudersky Winston Battery, we were promoting the large capacity cells from 40AH to 1000AH

Did you not have chance to get more details at InterSolar? Do you wish to know more?  Be sure to contact us for more technical details, projects applications and solutions.

08.11.2017
 
GWL/Power battery pack demonstration

 

The simple solution for energy needs. A  2.2 kWh battery pack made from 8 cells (total 24V/90Ah), with BMS123 Smart installed. This is a basic component solution for further integration in customer projects. 

08.11.2017
 
Winston Battery application

 

Example of the Winston Battery application. A 24V battery pack for telecom offgrid applications….  as visible at InterSolar (at a partner booth)

07.11.2017
 
Multiple terminals of the high power cells

The large capacity Winston cells 700AH, 1000AH are equipped with multiple terminals. All terminals are mutually connected and there is no difference between them.

The terminals of the small cells like 40AH, 60AH, 100AH, 160AH can be used for continuous loads with rating up to 100 Amp currents.  The larger terminals of the 200AH cells to 400AH cells can withstand some 300 to 400 Amp currents. 

Please note that for high power applications with currents above 100Amp (continuous) the cabling and connector mounting must be realized in a very precise way with corresponding load rating.  

For high power applications, with continuous load demands, it is recommended to use multiple terminals. This is the purpose of the multiple terminals on the large 700AH and 1000AH cells. 

In simple words: if you have continuous power rating more than 100 Amp, we always suggest using the multiple terminals.

06.11.2017
 
The LTO customized pack solutions - life is easy!

pack

The innovative LTO cells allow a simple and easy assembly into the packs. As a result any company or individual with basic skills in electronics is now able to produce the battery packs with excellent performance. There is no need to use the welding machines to fix the contact terminals to the cells.  

The LTO cells have the outstanding energy performance and mechanical safety. 

The LTO cells bring the energy solutions into a new level. 

The team of GWL/Power will be happy to assist you in your projects. 

03.11.2017
 
The world of the LTO technology

 

The world of the LTO technology 

The 2.4V high performance cells for your packs and battery applications.

28.07.2017
 
Multiple terminals of the high power cells

Multiple terminals of the high power cells

The large capacity Winston cells 700AH, 1000AH are equipped with multiple terminals. All terminals are mutually connected and there is no difference between them.

The terminals of the small cells like 40AH, 60AH, 100AH, 160AH can be used for continuous loads with rating up to 100 Amp currents.  The larger terminals of the 200AH cells to 400AH cells can withstand some 300 to 400 Amp currents. 

Please note that for high power applications with currents above 100Amp (continuous) the cabling and connector mounting must be realized in a very precise way with corresponding load rating.  

For high power applications, with continuous load demands, it is recommended to use multiple terminals. This is the purpose of the multiple terminals on the large 700AH and 1000AH cells. 

   ...more >>

06.06.2017
 
Winston Battery application

 

Winston Battery application

Example of the Winston Battery application. A 24V battery pack for telecom offgrid applications….  as visible at InterSolar (at a partner booth)

08.02.2013
 
The TUE.nl project: LUPO EL

The TUE.nl project: LUPO EL

The Lupo EL (“Electric Lightweight”) vehicle combines a very low weight (1,060 kg, 2,337 lbs) with a large battery pack (27 kWh). This results in a range increase of 30% to 50% in comparison to existing electric vehicles with four seats on the market today— 215 km (134 miles) urban and 135 km (84 miles) highway on the Artemis cycle. Despite the presence of a large battery, the interior and cargo space dimensions remain unchanged.

Batteries: Winston Battery/Thunder Sky TS-LFP90AHA, capacity 90 Ah, 3.3V, cycle life > 2000 @ 80% DOD, chemistry: LiFePO4, 91 cells in series, 273 kg, 27 kWh

More details here:
http://www.greencarcongress.com/2011/04/lupoel-20110409.html
http://www.evalbum.com/3842

03.02.2013
 
Safe Disposal of Damaged Batteries

Safe Disposal of Damaged Batteries

Some times it happens that the LiFePO4 cells or batteries get damaged due to an improper use such as deep discharge or over charge.  Such cells or batteries cannot be repaired and must be disposed of properly.

If necessary, to dispose of damaged batteries with LiFePO4 technology, we strongly recommend that you first discharge down to 0V [zero] and then link the terminals of the cell or battery with a simple wire jumper. This way you will prevent from the battery to regain some energy from the continuation of the chemical processes.

06.01.2013
 
Micro Energy Storage Setup

Micro Energy Storage Setup

NOTE: this is a grid-tied system setup with a energy backup to the batteries. This system is grid-tied only. The micro-inverter works only when the grid is present. If the grid is down, the system does not work. It is NOT an off-grid system.

——————————————————————————————

A practical realization of a small size energy storage solution with 3.2 kWh of energy capacity with 230V/230W AC grid-tied power output. The basic concept of the energy storage with easy expansion.

Components description of the complete setup

* Lithium Battery Pack 36V
Battery pack 36V 90Ah made of 3 finely balanced 12V/90AH LP batteries. The nominal capacity is 3.2 KWh of energy.  There can be more batteries easily added to increase the capacity of the storage.
http://www.ev-power.eu/_d1873.html  (USD430 per unit, total USD 1290 for 3 pcs)

   ...more >>

28.12.2012
 
A battery quiz

A battery quiz

1) How much is the total capacity in Watthours of all of these batteries on the picture? (Calculated at the nominal 3.2V level)

2) How much is the total weight (in kilograms) for these batteries?

Let us know by means of the form on the right. 

(send replies before January 15th, 2013)

===============================================

Quiz Answer

16.12.2012
 
Making your own LFP battery

Making your own LFP battery

The photo shows a 12V LFP battery made of 4 cells stapped together. It is designed to serve as a backup battery for starting car in cold winter weather.

12.12.2012
 
The original Winston LP12V80AH battery - after 3 years at 98AH!

The original Winston LP12V80AH battery - after 3 years at 98AH!

The photo shows the LP12V 80AH battery produced by Winston (ThunderSky) in 2010. After 3 years of continueous use it gives 98 AH (!) of real capacity. After the warranty period, the battery was modified by the user to get access to each cell and to monitor the voltage of the cells, using the CellLog8. 

What can be said?  It seems better than “ideal dream”. But it is not a dream, it is the reality of the LFP technology.  With LFP cells energy storage is possible!

09.12.2012
 
LFP 1000AHC - 3.2 kWh of energy in one cell

LFP 1000AHC - 3.2 kWh of energy in one cell

The LFP1000AHC is the largest capacity cell in our offer at www.ev-power.eu.  This cell is designed for the energy storage solutions.

http://www.ev-power.eu/Winston-400Ah-1000Ah/WB-LYP1000AHC-LiFeYPO4-3-2V-1000Ah.html

09.12.2012
 
The large capacity cell by Winston

The large capacity cell by Winston

The large capacity cells produced by Winston Battery remain the most favorite products for energy storage solutions and for large battery packs.

http://www.ev-power.eu/Winston-160Ah-300Ah/

http://www.ev-power.eu/Winston-400Ah-1000Ah/

02.12.2012
 
deSpyder - an EV Porsche Replika with Lithium Power

deSpyder - an EV Porsche Replika with Lithium Power

Check a reference project for a high-power EV using the LiFeYPO4 cells from Winston Battery.

 

29.11.2012
 
Variety of LFP cells

Variety of LFP cells

Various cells from various producers. The same or different?  Of cause there are some differences but because all the cells are produced according to the international standards, the actual differences are very small and all the cells meet the standards and the requirements.

27.10.2012
 
Customer project reference: Solar offgrid installation with WB cells

Customer project reference: Solar offgrid installation with WB cells

Harvesting the solar power from the photovoltaic modules 240Wp -12 pcs, 2880Wp. Storing energy into Winston battery LYP200AHA, 32pcs, connected in 48V/400Ah battery system. Making the 230V AC network using SLI inverters 1500VA, 4pcs, 6kVA max power.

19.10.2012
 
Replacing OPTIMA Yellow 65AH with 60Ah Winston LP12V60AH

Replacing OPTIMA Yellow 65AH with 60Ah Winston LP12V60AH

The Chrysler Voyager (now Lancia Voyager) has the Optima Yellow 65AH starting battery. We have made replacement with Winston LP12V 60AH model.  The Optimal lead-acid has 28 kg. The Winston lithium battery has 12 kg. In cold weather, you can see the difference in starting the car immediatelly.

15.09.2012
 
Mr. Winston Chung celebrating 14 years of hard work at Winston

Mr. Winston Chung celebrating 14 years of hard work at Winston

The Winston company (formerly Thunder Sky) management and workers gathered to celebrate the 14 year aniversary of the Winston company operation.  Mr. Winston Chung, the founder of the Thunder Sky group addressed the meeting personally. Fourteen years ago the Thunder Sky was the first company to start with large capacity lithium cells.  After 14 years it is still the No.1 in large prismatic lithium cells. 

12.09.2012
 
Tons of LiFePO4 cells and batteries received

Tons of LiFePO4 cells and batteries received

After a period of delays, we have received a huge shipment of the LiFeYPO4 cells and batteries. Your orders will be processed soon. If you wish to place new orders, it is the right time now.

18.07.2012
 
The information about the 48V DC power energy storage systems

The 48V DC systems are usually assembled using 16 LiFePO4 cells with nominal voltage of 3.2V. You can check the example of the voltage levels for such a system at these examples (2).

The 16 cells system has following voltage levels

  • Nominal voltage - 16x 3.2V = 51.2V
  • Maximal charge voltage - 16x 3.65V  < 58.4V
  • Minimal voltage under load - 16x 2.8V   > 45V

In order to maintain compatibility with the lead-acid systems, some customers prefer using only 15 cells of the LiFePO4.  The 15 cells system has these voltage levels.

  • Nominal voltage - 15x 3.2V = 48V
  • Maximal charge voltage  - 15x 3.65V  < 54.7V
  • Minimal voltage under load - 15x 2.8V   > 42V

For compatibility reasons with other products (chargers, solar chargers, etc)  it is preferred to use the 16 cell solutions.

An example of 10kWh system at 48V can be assembled using 200Ah cells.
16 cells x 3.2V x 200Ah = 10.24 kWh for energy storage

   ...more >>

20.06.2012
 
An electric car using the LFP batteries for the traction.

An electric car using the LFP batteries for the traction.

22.04.2012
 
Winston Battery Operator Manual

Winston Battery Operator Manual

The official handbook for the operation of the LiFeYPO4 cells and batteries made by Winston (formerly Thunder Sky)

download here

21.01.2012
 
Another cell strapping photo! Enjoy.

Another cell strapping photo! Enjoy.

09.01.2012
 
GWL Battery Lab Photos

GWL Battery Lab Photos

See some photos behind the scenes from our work in the GWL battery lab.

09.01.2012
 
Size of the terminal connectors for 100AH cells

Size of the terminal connectors for 100AH cells

Product code LFP100-CON

05.01.2012
 
Welcome in 2012!

Welcome in 2012!

We hope to increase our technical support and services. We plan to add new products, battery brands and models. We are looking forward to co-operation with our customers!

11.12.2011
 
Never apply excessive force to the terminal connectors!

Never apply excessive force to the terminal connectors!

Applying excessive force to tighten or release the bolts of the terminal connectors can cause whole terminal to move (rotate). The result is a damage of the internal structure of the cell that cannot be repaired. No warranty can be applied for such kind of the cell abuse.

08.12.2011
 
Energy storage solution using LFP with 3 phase invertors

 

Energy storage solution using LFP with 3 phase invertors

A customer solution using the 3 phase invertors to power a system from an enery storage pack using the LFP cells. 

03.12.2011
 
The Winston Battery Safety Information

The Winston Battery Safety Information

Download the Winston Battery Safety Information PDF.

11.11.2011
 
Discharge of 90AH and 100AH batteries - Test Report at 102A (1C)

Discharge of 90AH and 100AH batteries - Test Report at 102A (1C)

The test report shows the discharge characteristics of Winston 90AH, Winston 100AH, CALB 100AH at 102A discharge currents (1C). Download the test data here (XLS 1.6 MB)

05.11.2011
 
The Winston Battery Exhibition place at eCarTec 2011

 

The Winston Battery Exhibition place at eCarTec 2011

02.10.2011
 
Harvesting the power of the sun

The charge graph
Two 217Wp panels
The battery pack

Harvesting the power of the sun

We have set up a new configuration to test the solar charging of LFP batteries. Two solar panels (217Wp each) are in a serial string to charge a 48V/90Ah battery pack made of 4 pcs of LP12V 90AH batteries.

During a sunny day in October, we are able to gain more than 2 kWh of energy from the 2 panels. (38Ah at 53V = 2kWh)

Our tests have a multiple purpose: to test the solar charging, to examine different solar controllers, to study the charging of the LFP batteries and finally to make a working solution to disconnect from the grid for ever.

   ...more >>

10.07.2011
 
GWL/Power team is using EV cars

GWL/Power team is using EV cars

Two of our CityStromers that are used on daily bases - both for the ordinary driving and for testing of the EV power solutions.

10.07.2011
 
CE declaration of conformity for the Winston Battery products

CE declaration of conformity for the Winston Battery products

10.07.2011
 
EVKart - Electric Racing Cart - another photo

EVKart - Electric Racing Cart - another photo

04.06.2011
 
New shipment of the batteries now on stock!

New shipment of the batteries now on stock!

We have received another container shipment of the batteries. Be sure to book your order fast.

04.06.2011
 
Charging 208 pcs of LYP40AH cells for EV scooters

Charging 208 pcs of LYP40AH cells for EV scooters

We arrange the batteries to make a 48V 520AH battery pack and we charge with 48V 150A charger.

01.06.2011
 
The photo of a damaged 12V battery

The photo of a damaged 12V battery

This photo shows the results of a severe battery abuse and following dissambly. You can see that the LiFePO4 is a 100% safe batery technology: no fire, no explosion, no dangerous acids, gases and chemicals.  (source)

14.05.2011
 
Winston Battery - cell dimensions

Winston Battery - cell dimensions

There are some changes in the dimensions of the LFP (LYP) cells as offered by Winston Battery. There is a difference in the sizes of several models against the previous models offered under the ThunderSky name.

Check the PDF file to see the differences in the dimensions. Download here.

04.05.2011
 
Testing the CBM performace

Testing the CBM performace

We tested the CBM boards before releasing them to our customers. You can see the voltage level of the 3 cells (on the left side) kept bellow 3.6V, while the right cell is not ballanced and the voltage increases above 3.9V.

14.04.2011
 
Size of the terminal connectors for 90AH cells

Size of the terminal connectors for 90AH cells

Product code LFP090-CON

04.04.2011
 
EVKart ready for new testing rides

EVKart ready for new testing rides

The installation of the EVKart for 72V 60Ah was finished and we are going to make the first test rides. 

03.04.2011
 
EVKart installation continues

EVKart installation continues

We plan to have the EVKart V2 running in the beginning of April. More details to follow.

16.03.2011
 
The electric power boat in Croatia

The electric boat at sea...
The battery pack using 200Ah cells

The electric power boat in Croatia

… using the Agni motors and the LFP 200AH cells equipped with RT-BMS.

Photo courtesy of ABA VELA d.o.o., Split, CROATIA

14.03.2011
 
EVKart project - installing 72V/60Ah pack

EVKart project - installing 72V/60Ah pack

The 3 pcs of 24V 60AH packs ready for the installation.

07.03.2011
 
EVKart project - installing 72V/60Ah pack

EVKart project - installing 72V/60Ah pack

The new improved EVKart project will be using 6 pcs of 12V 60Ah batteries to take the total of 72V/60Ah battery pack. The pack consists of 3 identical 24V/60Ah pack that can be easily changed.

07.03.2011
 
Simple solution to make a 24V battery pack

Two 12V 60Ah batteries
Handle to carry the pack
Fuse and Akumons inside

Simple solution to make a 24V battery pack

Two 12V batteries (here 12V 60A) are packed together. A plastic handle is mounted too, to allow easy carrying of the pack.

A high power fuse (400A) and two Akumons are mounted inside a plastic box.

02.03.2011
 
We have the high power capacity Lithium Iron batteries

We have the high power capacity Lithium Iron batteries

28.02.2011
 
FIAT Seicento Elettra - conversion to lithium - more photos

20.02.2011
 
FAQ: Winston (ThunderSky) single cell dimensions

FAQ: Winston (ThunderSky) single cell dimensions

Thunder Ningbo TS-LFP20AHA - 20AH - 71x42x152 mm
WB-LYP40AHA, TS-LFP40AHA - 40Ah - 116x46x188 mm
WB-LYP60AHA, TS-LFP60AHA -60Ah - 115x61x212 mm
WB-LYP90AHA, TS-LFP90AHA -90Ah - 145x61x217 mm
WB-LYP100AHA, TS-LFP100AHA -100Ah - 145x68x217 mm
WB-LYP160AHA, TS-LFP160AHA -160Ah - 182x71x277 mm
WB-LYP200AHA, TS-LFP200AHA -200Ah WIDE - 362x56x256 mm
WB-LYP200AHA, TS-LFP200AHA -200Ah TALL - 183x100x276 mm
WB-LYP260AHA, TS-LFP260AHA -260Ah - 362x56x283 mm
WB-LYP300AHA, TS-LFP300AHA -300Ah - 362x56x306 mm
WB-LYP400AHA, TS-LFP400AHA -400Ah - 461x65x285 mm
WB-LYP700AHA, TS-LFP700AHA -700Ah - 627x67x306 mm
WB-LYP1000AHA, TS-LFP1000AHA -1000Ah - 850×71×375 mm
WB-LYP1000AHA, TS-LFP1000AHA -1000Ah - 560×130×356 mm (AHC model)
WB-LYP7000AHA, TS-LFP7000AHA -7000Ah - 1057×166×786 mm (AHC model)

   ...more >>

14.02.2011
 
Charging 12V batteries in a parallel pack

 

Charging 12V batteries in a parallel pack

Six 12V 60AH batteries chargered with 12V 100A charger. The batteries are in parallel and make 12V 360AH pack. 

Hint 1: Note that the terminals of the charger are connected on the oposite sides of the pack. This is a small hint to make sure that all the batteries will be chargered equally during the high speed charging.

Hint 2: Additionally after the charge cycle is finished, it seems good to let the batteries rest and equalize over 1 or 2 hours and then make another charge to full. This may be repeated 2 to 3 times to make the batteries in the pack equally charged.

28.02.2010
 
The TS-LP12V100AH promo

The TS-LP12V100AH promo

Check the LP12V100A promo leaf-let in Chinese and Chinese-English.

13.02.2010
 
Lead Acid vs Lithium Iron! Guess Who Wins!

Lead Acid vs Lithium Iron! Guess Who Wins!

Please check the comparison datasheet with useful information on lead-acid batteries versus the LiFePO4.

10.02.2010
 
Winston battery pack 32x 200Ah

The 32x 200Ah battery pack with balancers installed on the aluminum cooling belts.

10.02.2010
 
TS-LP12V80AH on scales…… 12.32 kg

TS-LP12V80AH on scales…… 12.32 kg

09.02.2010
 
The ballancing modules of the RT-BMS system

The ballancing modules of the RT-BMS system

Each cell one module. That’s it.

09.02.2010
 
32x 200Ah battery pack for VW Citystromer

32x 200Ah battery pack for VW Citystromer

The first ballancers installed on aluminium cooling belts.

09.02.2010
 
Thundersky LiFePo4 Battery Cell Chemistry and Disassembly

Thundersky LiFePo4 Battery Cell Chemistry and Disassembly

A look at the interior of a LiFePo4 cell and discussion of battery chemistry. (by Jack Rickard, http://www.ev-tv.me)

http://media.ev-tv.me/thunderskybattery-1280.mov (2Gb!)

01.02.2010
 
32x 200Ah battery pack for VW Citystromer

32x 200Ah battery pack for VW Citystromer

Another installation using the LFP cells. Please keep cheing the progress of our work.

30.01.2010
 
Toyota Prius Plug-in Conversion using Thundersky cells

 

Toyota Prius Plug-in Conversion using Thundersky cells  (http://www.eaa-phev.org/wiki/Prius_PHEV)

This is a photo of the Do-It-Yourself plug-in conversion kit for Toyota Prius. Tha author is Jim Fell, Peterborough, England.  (Jim was using the older generiation of the ThunderSky cells - white color.)

30.01.2010
 
Toyota Prius Plug-in Conversion using Thundersky cells  (Enginer.us)

Toyota Prius Plug-in Conversion using Thundersky cells  (Enginer.us)

This is a photo of the commercially available plug-in conversion kit for Toyota Prius. The battery pack uses ThunderSky cells.  (-link-)

Yet another commercially available plug-in conversion kit is available from http://www.pluginsolutions.com/

30.01.2010
 
Toyota Prius Plug-in Conversion using Thundersky cells  (Czech)

Toyota Prius Plug-in Conversion using Thundersky cells  (Czech)

This is a photo of the experimental Plug-in conversion made in Czech, EU. The battery pack uses 77 pcs of TS-LFP40Ah.

27.01.2010
 
The LiFePO4 12V battery serial connection cycle tests

The LiFePO4 12V battery serial connection cycle tests

Please download the XLS with real data of our performance tests of 12V 20AH batteries. This is a demonstrattion of high speed discharge @40A and high speed charge @30A. If you have any questions and/or comments, please let us know.

16.01.2010
 
FAQ: 12V LP battery balancing and charging

Question:  Can I charge the 12V LFP battery using a conventional auto-moto charger 12V?

Answer:  With most of “cheap” car battery chargers you **cannot** charge the 12V LFP battery. Cheap chargers often end charging at 14V.  As a result the LFP batteries are not charged sufficiently. In order to charge to full you need to reach above 16V.

If you have an “advanced” manageable charger, it can be used provided you can set the charge level to at least 16V.

Simply said: you can charge with any kind of charger if you make sure that the battery voltage reaches at least 16V, but does not exceed the maximum limit of 17V.

Question: What are the experiences of balancing 12V batteries, when, for example, four pieces of 12V/40Ah in the series?

Answer: Unlike 3.2V cells that can hardly be operated without balancing, the 12V LP batteries behave “very sophisticated”, so the need for continuous balancing practically does not exist. It is just enough to check the voltage levels during inspection periods. If you notice a difference in the battery voltage levels, we recommend balancing all batteries manually to the same maximum charging level (ie, max 17 V / per battery).

   ...more >>

16.01.2010
 
Lithium Iron Phosphate (LiFePO4 / LiFeYPO4) in Norway

Lithium Iron Phosphate (LiFePO4 / LiFeYPO4) in Norway

Inspired by our simple 8x 80Ah lithium testing conversion, an EV user of a CityStromer from Norway has send us this photo of the 8x 80Ah installation in the back of the VW Golf Citystromer.  These batteries are running quite well despite the cold Norwegian winter weather with temperatures bellow -15 deg.C.

10.01.2010
 
The performance range for LFP cells (3.2V) and LP batteries (12V) under +25°C and -35°C

The performance range for LFP cells (3.2V) and LP batteries (12V) under +25°C and -35°C

Please see the voltage levels for LiFePO4 / LiFeYPO4 cells and batteries under different temperatures. Comment: In your BMS systems you should be able to set the voltage characteristics based on the temperature monitoring.

30.12.2009
 
3.2V LiFePO4 / LiFeYPO4 cell pricing

3.2V LiFePO4 / LiFeYPO4 cell pricing

The most competitive pricing for LFP cells in Europe. We offer the volume discounts and low prices for LFP cells. Please contact us to get the latest price-list.

We will be pleased to deliver the LFP cells to you. Fast and reliable!

Technical specifications:

30.12.2009
 
12V LiFePO4 / LiFeYPO4 battery pricing

12V LiFePO4 / LiFeYPO4 battery pricing

The most competitive pricing for 12V LFP batteries in Europe. We offer the volume discounts and low prices for 12V LFP batteries. Please contact us to get the latest price-list.

We will be pleased to deliver the LFP batteries to you. Fast and reliable!

Technical specifications:

1) Battery dimensions for the 12V series - please see here complete overview

2) Complete overview of the technical specifications

3) Photos:  12V 100AH

Please check our main blog page for news and other details!

20.12.2009
 
12V 100Ah monolitic LiFePO4 / LiFeYPO4 battery

12V 100Ah monolitic LiFePO4 / LiFeYPO4 battery

Ideal solution for power supply:  direct 12V without BMS or monitoring systems needed with other lithium batteries. High currents up to 1000 A supported. Low weight: just about 14 kg. No acid! No lead! No health danger! Full working temperature range (-30 to +70).  High speed charging supported.

20.12.2009
 
12V 100Ah monolitic LiFePO4 / LiFeYPO4 battery

12V 100Ah monolitic LiFePO4 / LiFeYPO4 battery

The largest 12V monolitic LiFePO4 battery on the market. Allows high discharging peak currents - up to 1000A.  Please see the tech. specification here.

Works in full range of operating temperatures. Can be used easily for starting of automobile engines under extreme low temperatures.

20.12.2009
 
4x 12V 20AH batteries under test

4x 12V 20AH batteries under test

Please see the photo of our test setup for 12V 20A batteries in 4 series string. We want to demonstrate charging and discharging levels for this model pack.

19.12.2009
 
124% of capacity

124% of capacity

The LFP (LiFEPO4 / LiFeYPO4) batteries capacity demonstration: 20Ah battery gives 24.83Ah of real energy this makes 124% of the nominal capacity.

19.12.2009
 
Winston 12V/20Ah battery

 

Photo of 12V 20AH LFP battery, see details here: http://gwl-power.tumblr.com/search/20Ah  The 20AH battery dimension see here: http://gwl-power.tumblr.com/post/187997557/high-voltage-lithium-yttrium-iron-lifepo4-lifeypo4

13.12.2009
 
ThunderSky 160AH capacity test

ThunderSky 160AH capacity test

Please see another test by JRR Nortec tetsing equipment. Base on this report, you can see the capacity of the 160Ah cell reaches the total of 165.4Ah. This makes 103% capacity level.

14.11.2009
 
Winston 12V batteries LiFeYPO4

The box with 10 pcs 12V 20AH LFYP
The box with 10 pcs 12V 40AH LFYP
The box with 3 pcs 12V 100AH LFYP

 

See the photos of the LiFeYPO4 batteries: 12V 20AH, 12 40AH and 12V 80AH from our latest shipment.

08.11.2009
 
Battery Monitor and Recorder in Real Use 

 

Battery Monitor and Recorder in Real Use 

  • CellLog 8S has been 100% calibrated before it enters to the market, at the same time, it supports the calibration by users themselves.
  • CellLog 8S has a 16Mbit flash storage, which can log offline data in 36 hours.
  • Support upgrading the hardware program by USB port. The CellLog 8S also supports the “logview” software and can display, plot and analyze the charge and discharge data by it. (See detail information about logview in the following website: http://www.logview.info)

ONLY EUR 27.00 !!! Please contact us for express delivery in Europe.

ENGLISH MANUAL DOWNLOAD

08.11.2009
 
The difference between the LFP and LFYP

FAQ: Is there a fundamental difference between the LFP (LiFePO4) and LFYP (LiFeYPO4)?

Yes. The essential difference is the use of the chemical element yttrium (Y) instead of iron (Fe).

The chemical structure is in stead of LiFePO4 (LFP) changed to LiFeYPO4 (LFYP). See the chemical composition LiFeYPO4 batteries according to the manufacturer:
http://gwl-power.tumblr.com/post/180659445/the-material-composition-of-the-lifeypo4-battery

The essential difference is in the behavior of chemical elements yttrium and iron. While iron is very susceptible to oxidation and reactions with other chemical compounds, the element yttrium is more chemically stable, not easy to to reach with other compounds. The result is much stronger chemical stability and durability.

While LiFePO4 battery shelf-life is usually given as 3 to 5 years. For batteries using yttrium the service life is set to 10 or more years. Not for nothing did one of the leading scientists said: “Yttrium may be the iron of the future”.

28.10.2009
 
TS-LFP160AH TEST REPORT

TS-LFP160AH TEST REPORT

Please download an indepedent test report of the performance of the 160 AH TS cells. These tests were made by JBI Corp - http://www.jbicorp.com/ 

28.10.2009
 
TS-LFP400AH TEST REPORT

TS-LFP400AH TEST REPORT

Please download an indepedent test report of the performance of the 400 AH TS cells. These tests were made by JBI Corp - http://www.jbicorp.com/

28.10.2009
 
36V pack assembled

 

The 36V pack assembled and the Simple Battery Management (SBM) installed. Now we are ready to go!

28.10.2009
 
packs of 6 cells

 

Two packs of 6 cells are ready to be assembled into a 12 cell string, to make a 36V solution.

28.10.2009
 
The cabling for the BMS

 

The cabling for the BMS and ballancing circuit attached to the cells.

28.10.2009
 
TS 40 AH cells

 

TS 40 AH cells connected together into a serial string using the copper terminal connectors.

28.10.2009
 
Thunder Sky Battery Technical Specification

Thunder Sky Battery Technical Specification

Please download the official technical specification of the TS batteries.

25.10.2009
 
A full cell cannot charge an empty cell!  You need to charge the cells to the same full level together!

 

Just another photo….. This way you can simply balance a fully charged cells with the discharged cells…. We just leave them connected over night and the next morning the cells are ready to go on….  they are partially balanced, BUT NOT COMPLETELY.

Note: A full cell cannot charge an empty cell!  You need to charge the cells to the same full level together!

25.10.2009
 
The first step

 

Installing a battery pack? The first step is ballancing all the cells at the same voltage level. This can be done easily…. as you see on the photo. And here is the photo of the whole pack.

25.10.2009
 
VW Golf 3 CityStromer 240Ah - 218 km per charge

 

VW Golf 3 CityStromer 240Ah - 218 km per charge

We continue our test rides of the VW Golf CityStromer with 24 pcs of 12V 80Ah lithium batteries. We have reached the new record of 218 km per single charge in real trafic. This distance was reached in the ordinary city trafic in the capital city of Prague. The city driving means a lot of stoping and accelerating at the many crossroads. We hope to reach even larger distance driving on intercity roads without the many crossroads.

25.10.2009
 
12V lithium yttrium battery 80A

12V lithium yttrium battery 80A

Operating voltage 10V ~ 17V, nominal capacity 80A, max. charge current 50A, max. discharge cont. current 150A, max. discharge impluse current 900 A (6 sec.), weight 12 kg.  Non-toxic, no-acid, no-lead. No BMS needed, the cell stability is based on the internal electro-chemical balancing.

11.10.2009
 
VW Golf 3 CityStromer 240Ah installation finished

 

VW Golf 3 CityStromer 240Ah installation finished

We have installed 24 pcs of 12V 80Ah lithium batteries in 8-serial 3-parallel
configuration.  Total power is based on 96V 240 Ah.  The weight of the pack
is 283 kg.  This means a saving of 229 kg against the original lead-acid
batteries with 512 kg (16 x 32kg).
 
The installation is done without any mechanical change to the VW Golf design.
The batteries fit perfectly.

Please read details in the Auto88 discussion forum.

07.10.2009
 
23kWh LiFeYPO4

 

The 23kWh LiFeYPO4 battery pack for VW Golf CityStromer installed! (2)

The front part of the VW Golf CityStromer hosts 6 pcs of the LP 12V 80AH batteries.  There is extra space left, that may be used by a high speed charger in the future.

The total installation is made of 24 pcs of the LP 12V 80A cells. 6 pcs in the front battery space, 18 pcs in the back battery space.

The driving distance per single charge? Well, let us see! We are going to post the results here!

07.10.2009
 
23kWh LiFeYPO4

The 23kWh LiFeYPO4 battery pack for VW Golf CityStromer installed! (1)

This is the photo of the installation of the 18 pcs of the LP 12V 80AH batteries into the original space in the back of the VW Golf CityStromer.  The 18 pcs batteries fit exactly into the space without any need for mechanical changes.

07.10.2009
 
160AH battery pack

 

This is a photo of a 160AH battery pack using Thunder-Sky LFP/LFYP cells. (source EVC Group web)

22.09.2009
 
The really HUGE LFP pack

 

The really HUGE LFP pack

This is the photo of the initial charging and testing of the LFP battery pack.

We are now working on the new modification of the VW Golf CityStromer.  Here is the technical review of the project:

Original battery:VARTA 83201 batteries - 16 pcs. Nominal 6V 240Ah, real capacity 6V 115Ah (at 150A), weight 32 kg each. Total weight of 16 pcs = 512 kg.  This is the best VARTA technology: 512 kg of toxic lead and deadly acid makes 11kWh of real energy.

New battery: Thunder-Sky Lithium-Yttrium 12V80Ah batteries - 24 pcs. Each 3 pcs of the  80Ah batteries make one 12V 240Ah pack. Each battery weights 11.7 kg. Total weight of 24 pcs = 280 kg. This is the best lithium technology: 280 kg of non-toxic, non aggressive batteries makes for 23kWh of real energy.

We hope to reach 250 km of driving distance per single charge!  We keep you updated here!

16.09.2009
 
largest battery pack

We are working on our largest battery pack. The batteries are getting ready for the initial formation charging and balancing cycle.

16.09.2009
 
Winston in grocery store?

Shopping at Tesco?  You cannot get these at your Tesco, Lidl or Wallmart… But you get your LFP cells and batteries from GWL/Power. Please contact us for the order and delivery terms.

14.09.2009
 
Winston 12V dimmensions

LFP 12V 20Ah battery dimensions
LFP 12V 40Ah battery dimensions
LFP 12V 80Ah battery dimensions
LFP 12V 100Ah battery dimensions

 

High voltage lithium yttrium iron LiFePO4/LiFeYPO4 batteries. Please see the dimensions of these high power traction batteries.

14.09.2009
 
VW Golf CityStromer

The VW Golf CityStromer with lithoum battery pack. The detail photo of the 8 pcs battery pack. Any questions?  Just let us know by email.

14.09.2009
 
VW Golf CityStromer

 

The lithium battery installation in the VW Golf CityStromer. For testing purposes 8 pcs of 12V 80Ah lithium batteries are used. Total nominal voltage 96V, total capacity 7.68kWh, total weight 94 kg.

13.09.2009
 
Winston available on stock

3.2V 40Ah cells waiting for the delivery
3.2V 200Ah cells packed in boxes
12V 80Ah batteries ready on stock

 

Please see the examples of the photos of the cells and batteries available on stock. We have these high power batteries available in Europe and can arrange for delivery and shipping very fast. Please contact us for details if you wish to place an order. You can email us at auto88(at)auto88.cz.

13.09.2009
 
Battery pack using 12V for installation

Part of the LiFeYPO4 battery pack waiting for the installation…. The pack is based on the high voltage 12V 80Ah batteries.

13.09.2009
 
EV CitySax

 

The newly developed EV CitySax is using the LiFeYPO4 technology for the traction battery pack.  (86V 160Ah)

10.09.2009
 
Winston 12V batteries

Thunder-Sky 12V 20A Battery
Thunder-Sky 12V 40A Battery
Thunder-Sky 12V 80A Battery
Thunder-Sky 12V 100A Battery

 

Thunder Sky high voltage rare earth yttrium iron lithium power batteries. They are designed to replace the lead-acid batteries. They provide the best energy installments for the planes, ships, trains, automobiles and large scale mobile electric appliances.

10.09.2009
 
the demonstration of the ThunderSky LFP 40 Ah cells

 

Our company and our partners are extensively testing the BMS system for the high power traction batteries. The photo shows the demonstration of the ThunderSky LFP 40 Ah cells.

06.09.2009
 
Thunder-Sky TS-LFP800AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP800AH model specifications

06.09.2009
 
Thunder-Sky TS-LFP700AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP700AH model specifications

06.09.2009
 
TS-LFP9000AHB for Submarine application

Thunder-Sky Submarine Battery
TS-LFP9000AHB
Submarine Batteries

TS-LFP9000AHB - the LiFeYPO4 battery submarine model. Especially designed to replace other battery technologies. The lithium yttrium design gives the best performance and safety for military applications.

06.09.2009
 
Thunder-Sky TS-LFP400AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP400AH model specifications

06.09.2009
 
Thunder-Sky TS-LFP300AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP300AH model specifications

06.09.2009
 
Thunder-Sky TS-LFP260AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP260AH model specifications

05.09.2009
 
The material composition of LiFeYPO4

The material composition of the LiFeYPO4 battery technology by Thunder-Sky. The new yttrium technology replaces the previous LiFePO4 design.

05.09.2009
 
Thunder-Sky TS-LFP200AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP200AH model specifications

05.09.2009
 
Thunder-Sky TS-LFP160AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP160AH model specifications

05.09.2009
 
Thunder-Sky TS-LFP100AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP100AH model specifications

05.09.2009
 
Yttrium

 

Yttrium is found in most rare earth minerals, as well as some uranium ores, but is never found in nature as a free element. About 31 ppm (parts per million) of the Earth’s crust is yttrium making it the 28th most abundant element there, and 400 times more common than silver.

Yttrium has no known biological role, though it is found in most, if not all, organisms and tends to concentrate in the liver, kidney, spleen, lungs, and bones of humans.

Annual world production of yttrium oxide had reached 600 tonnes by 2001, with reserves estimated at 9 million tonnes. Only a few tonnes of yttrium metal are produced each year.  Wikipedia

05.09.2009
 
Thunder-Sky TS-LFP90AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP90AH model specifications

05.09.2009
 
Thunder-Sky TS-LFP60AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP60AH model specifications

05.09.2009
 
Thunder-Sky TS-LFP40AH

LiFeYPO4 (lithium yttrium iron phosphate) battery dimensions: Thunder-Sky TS-LFP40AH model specifications.

04.09.2009
 
Lithium Iron Phosphate

 

Lithium Yttrium Iron Phosphate high power battery design. The LiFeYPO4 technology is the next generation of the LiFePO4 batteries.


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