The XTAR VP4 Plus Dragon Battery Charger is a comprehensive, versatile charger designed not only to recharge your batteries but help test and maintain them to extend their useful life. The VP4 Plus is capable of charging up to 4 batteries at once in various sizes, from regular 18650 batteries to all the way up to 32650 batteries, and is compatible with Li-Ion, Ni-MH and LiPO batteries.
The Dragon can charge all 3 of its' compatible battery types simultaneously, and intelligently balances charging for each type of cell for maximum safety. The Dragon has a USB port on the back to allow charging of USB devices while either plugged into power from the wall or from the batteries attached to the unit.
In addition to being a versatile charger, the VP4 Plus features a range of battery maintenance and testing features. The Dragon has a built in battery specific multimeter to measure the internal resistance and voltage of a battery to assess the health of a given battery, and can be used to measure the capacity thanks to a diagnostic discharge mode. If a battery becomes to over discharged through improper use, the VP4 can recover low voltage batteries with a specific battery recovery mode.
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