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By certification 
Product Description
Battery model: ICR18650-2200mAh-4S1P
Rated voltage: 14.8V
Rated capacity: 2200mAh
Constant discharge current: 0.2C(Standard)/1C(Max)
Working temperature: charging: 0°C~+45°C,discharging: -20°C~+60°C
Product size: MAX 37.8*39.1*67.7mm
Internal resistance:380 mΩ
Lead model: UL1007/20#, length: 50mm
Over-charge detect voltage/each series: 4.35±0.025V
Over-discharge detect voltage: 2.4±0.08V
http://www.pt-battery.com/
