1.326650 li-ion batteries 2.CE,ROHS,UL Approval 3.Use for bluetooth,game player,gps,gift 4.With BMS or PCM Item: Cheapest 3.7v 4000mAh 26650 li-ion batteries use for external battery pack ModelLi-ion batteryStandard Voltage3.7VMax Charging Voltage(V)4.2Vlity GradeA+Impedance Initial (mΩ)Less than100mΩNominal Capacity(mAh)4300~4400mAhCycle Timemore than ...