IJOY 21700 High Drain Rechargeable Battery comes with 3750mAh battery capacity and 40A max continuous discharging current. It can be used with most 21700 regulated and mechanical MODs. Long storage life, light weight and high energy density. Get it as a spare part.

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- Size: 21700
- Type: Li-Ni (High Drain)
- Typical Capacity: 3750mAh
- Min Capacity: 3700mAh
- Nominal Voltage: 3.7V
- Peak Voltage: 4.2V
- Cut-off Voltage: 2.5V
- Dimensions: 21.4mm (Diameter) x 70.2mm (Length)
- Rechargeable: Yes
- Max Continuous Discharging Current: 40A
- Max.Charge Voltage:4.23V
- Style: Flat Top
- Color: Black and Gold
- Rated Capacity: 3750mAh

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

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.