Description: 21.6V 2400mAh 18650 Robot Lithium-ion Battery Product No.: HG6AE1126 Cell model:  18650 / 2400mAh / 3.6V   Battery Specification: 6S1P/ 2400mAh / 21.6V   Nominal voltage: 21.6V          Nominal capacity:  2400mAh    Charging voltage: 25.2V     Charging current: 480mA   Discharge current: 480mA   Maximum discharge current: 1200mAh Discharge cut-off voltage: 16.5V      Internal resistance : ≤ 50m Ω    Delivery voltage: 21.6-24.0V   Battery weight:450g Product size: 82 * 80 * 37.5mm (max) Operating temperature: Charging temperature: 0-45°C; Discharge temperature: -20-60°C Storage temperature environment:1month - 20-60 ° C; 3months - 20-45 ° C; 12months - 20-25 ° C Relative humidity: 65 ± 20% Battery structure: Lithium Battery protection: short circuit protection, overcharge protection, over discharge protection, over current protection, power management, etc    Application field: Robot, education, entertainment, service industry, powered by Lithium-ion Battery