... 2200mAh,2400mAh,2600mAh 4000mAh,4400mAh,4800mAh,5200mAh Size:20x38x65mm 7.4V 2200mah (18650*2) Battery Pack Description: 1 ... ,Packing: . High quality 7.4V 2.2Ah Li-ion rechargeable battery Module is ... . Wrapped by PVC tube 3,Voltage: 7.4V(working) 8.4V(peak) 5.5V(cut-off) 4,Capacity ... battery pack and protects the battery from . Overcharge(>8.4V) . Overdischarge(<5.5 V) . Over drain (> ...