Original ThunderSky Winston part number: WB-LYP300AHA
Recommended initial and subsequent charging is to 3.65 V.
The minimum voltage is 2.5 V.
Maximum discharge current is 3C continously.
Operating temperature -45°C up to 85°C (discharging)
Capacity density is 90 Ah/kg
These battery cells are suitable for all traction applications including electric vehicles. Fully complies also for stationary applications - such as energy storage.
There is no Selfdischarging effect.
Can be recharged at any state of discharge - no memory effect
LiFePO4 is a very safe technology, not spontaneous combustion, does not react with moisture or with oxygen.
All cells are supplied new directly from the manufacturer.
Original Woodenbox contains 9 cells is 543*509*425mm large and weights 97kg.
|Please read USER MANUAL before use.|
|Do you have technical question? Try KNOWLEDGE BASE.|
Size of packs using 300Ah cells
8 cells, 24V
Total capacity 7200 Wh / Depth 444 mm / Weight 80 kg
16 cells, 48V
Total capacity 14,4 Wh / Depth 888 mm / Weight 160 kg
Capacity 900 Wh / Depth 55.5 mm / Weight 10 kg
4 cells, 12V
Total capacity 3600 Wh / Depth 222 mm / Weight 40 kg
Initial, first time charging
Cells are precharged from manufacturer to conservation charge (usually 30-50%).
The cells have to be charged with low current before the first use.
The first charge should not exceed 0.5 C - eg for 300Ah cell is 150A.
FAQ: Initial charging information
For initial charging of multiple cells, connect them in parallel and the charger outputs should be connected to both ends of the parallel rows of cells, exactly as it is described here:
FAQ: The initial charging of the number of cells
We recommend to use chargers specially made for LiFePO4 cells First charge and initial balancing of the whole pack is important step towards long lifetime.
Alternatively you can use regulated (Laboratory) Power supply as initial charge tool. Short description how to proceed.
Balancing and protection
Demonstration video of BMS123 Smart assembly
Important part of each battery pack is balancing and protection electronic. Most frequent solution is BMS123 Smart.
This Advanced solution for battery monitoring and management of LiFePO4 cells support Bluetooth connection with your phone, iPad, tablet or other device. Free Android and iOS application included.
Common connection diagrams for BMS,SBM
BMS123 Smart connection demonstration including Charger, Appliance and the ever important fuses and switches.
SBM is simple solution offering basic protection, diagram shows 16 cell version connected with charger and fuses.
Connecting the cells
Winston produce cells with easy to assemble square shape, terminals are made for screws allowing simple installation with spanner.
Interconnection between cells is important part of any battery pack. Original copper connectors are made of several thin layers for ideal flexibility and conductivity.
Make sure to clean oxidation from both, terminals and connectors (with Sandpaper or similar) before assembly. Oxided contacts may have very high resistance and cause unbalancing of the battery.
Plastic caps are cheap solution to prevent unwanted shortcuts and for easy plus and minus marking (red and black colors are available).
Demonstration video of cell assembly
|Nominal Voltage (V)||3,2|
|Max discharge current (A)||3000|
|Optimal discharge current (A)||150|
|Max charging current (A)||900|
|Optimal charging current (A)||150|