CopterX (CX-B601) B601 1-6 Cell LiPo Balance Charger w/ AC Power Supplier Specification: DC INput: 11-18V Charge current: 0.1 - 7.0A Discharge cut-off voltage: 3.0V - 4.0V Lithium battery type: LiPo / LiIon / LiFe Lithium battery cell count: 1 - 6 Cells NiCd / NiMH battery cell count: 1 - 16 Cells Pb battery voltage: 1P - 10P Digital power: 3 - 24V Firmware upgrade available