Features Optional charging current (0.25a /0.5a/1a ) settings to maintain the lifespan of the batteries Voltage options (3.2v/3.6v/3.8v ) make sure to charge different types of batteries. Can use TC charging algorithm to activate over-discharged batteries. Use real CC/CV charging algorithm, best for Li-ion batteries. Precision cut-off voltage to make sure the batteries are fully charged but not overgharged. Two channels are totally independent; one battery will not affect the other.USB output function; The VP2 could be used as a power bank for your mobile devices. Real -time (LCD) voltage & corresponding power read out. Specifications 3.2V 3.6V 3.8V Voltage options Input: 12V 1.0A Output: 5V 1.0 A This device will gharge the following batteries 10440145001465016340175001767018350185001865018700226502550026650