18650 4-cell 8.4V Li-ion Rechargeable Battery Waterproof for Bicycle Light

High performance waterproof battery pack for lighting. A Grade Li-ion cells selected, with protection circuit built-in.
Part No. EV1865W-2S2P
Cell origin Samsung, LG Chem, Panasonic or Murata original cells
Nominal Capacity 5200mAh~7000mAh (customized)
Nominal Voltage 7.4V
Standard Charge Voltage 8.4V
Standard Charge Current 2A
Standard Discharge Current 0.2C
Max. Continuous Discharge 1C
Discharge Cut-off Voltage 5V
Connector DC
PCM Function against over-charge, over-discharge and short circuit
Case waterproof rubber 
Dimension (L)40.00mm*(W)40.00*(H)78.00mm approx.
Weight 200g max.
Operating Temperature Charge: 0~45dgC
Discharge: -20~60dgC