• 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
• Color: Black and Gold
• 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

IMPORTANT:

Fully charge before first use.
Never short (connect positive and negative size) battery.
Keep them always in battery case, or any other insulating material.
Never keep this battery together with metal objects (short circuit can happen if you do).
Never carry bare cell in your pocket with keys, change or any other metal objects.