It can charge 4 batteries at a time. Compact, portable and multi-functional design. Come with the charging cable for conveniently charging. Charge only with aa/aaa/6f22(9V) battery type rechargeable batteries Short circuit protection, the battery polarity reverse connection protection and so on. Note: Rechargeable battery’s voltage should be above 1.2V/9V If not, the charger is no use. Call for Price
