The UP-S6 employs a circuit that features 6 totally independent but identical power outputs which are powered 4.35W each. It's designed for charging single cell Lipo and LiHV. Insert the battery lead to the right connectors at each port. The charger can charge up to 6 batteries at the same time. The charging current can be adjustable from 0.1-1.0A and also supports 5V, 2.1A USB charging for phones, tablets, or other USB chargers. The charging status and voltage are displayed on digital segment LED indicators.