Universal Battery Tester for AA AAA C D 9V Button Cell Batteries Status Checker Durable design that will survive your junk drawer for years to come Versatile testing capabilities allow you to check all household standard and rechargeable batteries Good for 9V, AA, AAA, C, D, 1.5V, and Button style batteries. The easy-to-read meter tells you the charge instantly with color-coded, straightforward results! Always ready! No batteries needed to operate this meter aside from the ones you test.