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Battery Specification：
https://www.inr18650.com/products/18650-li-ion-rechargeable-battery-8c.html
18650 li ion rechargeable battery for power tools, full capacity, high cycling, low internal resistance and
ultra-low self-discharge to meet the requirements of your power products.
ultra-low self-discharge to meet the requirements of your power products.
Capacity: 2500 mAh
Minimum Capacity: 2480 mAh
Discharge Rate: 8C
Nominal Voltage: 3.7V
Internal Resistance: ≤18mΩ
Cycle Life: 500
Charge Voltage: 4.2V士0.03V
Charge Current: 0.5C (about 3 hours) 1C (about 2 hours)
Standard Discharge Mode: 0.2C Constant current discharge to 2.75V
Max. Continuous Discharge Current: 20000mA
Operating Temperature Range: Recharge (0-45°C) Discharge (-20-60°)
Long time Storage Temperature: -20~25°C
Initial Size: Diameter:18.15+0.20mm Height:65.0士0.50mm
