KOKPower

High Quality 12.8v 12V 20Ah 40Ah 60Ah 80Ah 100Ah LiFePo4 Car Engine Start Batteries

Nominal Voltage	12.8V
Nominal Capacity	40Ah
Cell Inside	A123 20Ah
Configuration	4S2P
Standard Charge Current	0.2C
Max. Charge Current	1C
Battery management System (BMS)	BMS-L4S100-280
Continuous Discharge Current	100A
Pulse Discharge Current	800A
Full Charge Voltage	14.6V (3.65V per cell)
Charge Cut-off Voltage	15.6V (3.9V per cell)
Discharge Cut-off Voltage	8V (2.0V per cell)
Net Weight	6kg
Dimensions	280x174x190mm
Operating Temperature	Charging: 0°C ~ 45°C Discharging: -20°C ~ 55°C
Storage Temperature	(Recommended to store 20 ± 5°C for long term storage)
Cycle Life	3500 times (80% of initial capacity at 0.2C rate, IEC Standard)

Details

Safety and Eco-Friendly
Lightweight
Cost-Effective
Great Consistency
Extremely safe and stable chemistry: PCB and/or BMS built inside to protect the battery.
Lighter weight, with the best power-to-weight ratio: 1/3 of Lead acid battery weight.
Good performance at high temperature.
Low self-discharge rate, less than 3-5% monthly.
No memory effects.
Environment friendly: Non-toxic, non-contaminating and no rare metal.