1800 mah battery 5c for power tools, full capacity, high cycling, low internal resistance and ultra-low self-discharge to meet the requirements of your power products. Capacity 1800 mAh Minimum Capacity 1780 mAh Discharge Rate 5C Nominal Voltage 3.7V Internal Resistance â?¤20m�© Cycle Life 500 Charge Voltage 4.2V -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 9000mA Operating Temperature Range Recharge (0-45C) Discharge (-20-60) Long time Storage Temperature -20~25C Initial Size Diameter:18.15+0.20mm Height:65.0 0.