Product Features & Specs:
Size: 26650
Type: Li-Ni (High Drain)
Typical Capacity: 4200mAh
Min Capacity: 4200mAh
Nominal Voltage: 3.7V
Peak Voltage: 4.2V
Cut-off Voltage: 2.5V
Dimensions: 26.22mm (Diameter) x 65.11mm (Length)
Rechargeable: Yes
Max Continuous Discharging Current: 40A
Max Pulse Discharging Current: 85A
Style: Flat Top
Rated Capacity: 4200mAh

Temperature:
Temperature range: -20 to +60 Degree Celsius
Monthly Self-discharge rate: Less or equal 0.5%
Temperature range: Discharge: -20 to +60 Degree Celsius, Charge: 0 to 45 Degree Celsius