XTAR DRAGON VP4 Plus is specially designed for people who pursue superior quality of life, have a strong consciousness of safety and would like to catch fashion.
There are four main functions of DRAGON: battery pack and battery charging, REFRESH/TEST modes, battery internal resistance test, USB output. It can intelligently distribute the power when charging your 11.1V/3s battery pack, Li-ion/Ni-MH batteries and USB mobile devices simultaneously. What's more, DRAGON can also test the capacity, voltage and internal resistance of batteries precisely. DRAGON, not just a charger, but your personal battery doctor！