Universal Lithium-ion polymer battery charger for 4.2V,8.4,12.6,16.8V,21V,25.2V li-ion battery pack. ... 7.4V,11.1V,14.8V,18.5V Lithium-ion polymer battery pack Product Feature:- Input voltage: AC100-240V, ... over-volatge protection, output short-circuit protection, reverse-battery protection- Hi-pot test: AC3000V, less than 0 ... 4V, 12.6V,16.8V, 21V, 25.2V battery pack charger. The MOQ each is 500 units. ...