Preset 8.4V Charge Voltage with 1% Accuracy  Programmable Charge Current Up to 1A  Input Voltage: 9.2V ～ 13V  Pre-Charging, the Charge Current is adjustable  Ideal for Dual-Cell (8.4V)Li-Ion Batteries  Constant -Current Charging, the Charge Current is adjustable  Constant-Voltage Chargin