Input Voltage: DC 11-28V PC Communications: USB port for PC Control & Firmware Upgrade Case Material: Plastic Balance Current: 1A Battery Types/Cells: NiCd/NiMH: 1-16cells LiPo/LiIon/LiFe/LiHv: 1-6cells Charge Current: 0.1-16.0A Charge Wattage: 300W Discharge Current: 0.1-3.0A