Original ThunderSky Winston part number: WB-LYP40AHA, TSWB-LYP40AHA
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 80 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.
|Please read USER MANUAL before use.|
|Do you have technical question? Try BLOG.|
Size of packs using 40Ah cells
8 cells, 24V
Total capacity 960 Wh / Depth 376 mm / Weight 12,8 kg
16 cells, 48V
Total capacity 1920 Wh / Depth 752 mm / Weight 25,6 kg
Capacity 120 Wh / Depth 47 mm / Weight 1.6 kg
4 cells, 12V
Total capacity 480 Wh / Depth 188 mm / Weight 6,4kg
LiFePO4 battery pack calculator
|The calculator provides recommendations based on your input.|
|The desired voltage of the final pack.|
|The required capacity of the pack.|
|Expected Depth of Discharge during use, what % discharge cycles you will use (ie. 100% DoD is full discharge every cycle).|
GWL Battery pack size calculator
It will help you to pick the best configuration for your needs.
You need Microsoft Office or other software capable of opening XLS files. The XLS does not contain any scripts and is safe to open. The file is stored at our internal protected storage. The file is free to share, commercial use only after agreement.
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 40Ah cell is 20A.
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.
|Nominal Voltage (V)||3,3|
|Max discharge current (A)||400|
|Optimal discharge current (A)||20|
|Max charging current (A)||120|
|Optimal charging current (A)||20|