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Good Consistency Vapcell K40 4000mAh 30A/45A 21700 Rechargeable Li-ion Battery Brown Performance Similar As 40T/P42A
All of the vapcell batteries are TRUE RATING
Button top can be added, and the size is 2-3mm longer than a standard 21700 cell like flat top & unprotected. The button top is widely required for flashlights, doorbells and other devices.
Model | vapcell INR21700 4000mah 30a k40 |
Size | 21.1*70.6mm |
Nominal voltage | 3.60V |
End-of-charge voltage | 4.20V |
End-of-discharge Voltage | 2.50V |
Typical Capacity | 4000mAh (0.2C discharge) |
Min capacity | 3900mAh (0.2C discharge) |
Weight | Max:68g |
Internal resistance | Max:10mΩ (AC 1kHz) |
Standard Charge | 2000mA,CCCV 100mA cut-off |
Quick Charge Current | 6000mA |
Max Continuous Discharge Current | 30000mA(30A) |
Max Discharge Current | 45000mA(45A)with 80°C cut |
Cycle life | Capacity ≥ 70% @ after 500cycles |
Charge : 0.5C(2A), 4.20V | |
Discharge: 7.5C(30A), 2.50V cut-off | |
Operating Temperature | Charging, 0°C ~ 45°C |
Discharging, -20°C~70°C | |
Storage Temperature | -5°C~35°C |
Storage Humidity | ≤75%RH |
Appearance | Without scratch,distorion,contamination, |
and leakage | |
Standard environmental condition | Temperature: 23±5°C |
Humidity :45-75%RH | |
Atmospheric Pressure :86-106KPA |
Natural Packing
Each 2 batteries packed in one Vapcell zipper box or plastic case ,10kg batteries in standard Vapcell export carton.
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