HEnt &reg; Universal Battery Tester for AA AAA C D 9V Button Cell Batteries Status Checker To make sure that the device lives long enough in your tool-box, HEnt fortified the device wit The Universal Battery Tester tests multiple sizes of batteries in one unit. It is a Universal Batt The easy-to-read meter tells you the charge instantly with color-coded, straightforward results! Versatile testing capabilities allow you to check all household standard and rechargeable batterie Convenient like a plug and play device. It requires no batteries to operate at all, it is versatil