LuckyStone BT-168D Universal Digital Battery Tester Battery Volt Checker for AA AAA C D 9V 1.5V Button Cell Batteries Get accurate readings on AA, AAA, C, D and 1.5V 9V batteries Easy-to-read , digit indicates power level Check power level of 9V and 1.5V battery Quickly test the capacity of your battery Test multiple sizes of batteries in one unit