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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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20.07.2018
 
Sailing Yacht with a 12V/200AH battery bank

Sailing Yacht exampleSailing Yatch exampleSailing Yacht example

 

Sailing Yacht  with a 12V/200AH battery bank

A reference project for a battery bank on a sailing yacht using the 4x WB-LFP200AH cells for the board battery and the BMS123 Smart. The battery pack is charged from the on-board AC/DC charger (35 Amp) and the generator (up to 80 Amp). 

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

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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.

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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).

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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.

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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).

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