e-smart home BT-168D Digital Battery Tester Volt Checker for AA AAA C D 1.5V 9V Mini Cell Batteries Battery Tester Digital Battery Tester Checker for 9V 1.5V and AA AAA Cell Easy-to-read , digit indicates power level. Checks power level of 9V and 1.5V batteries. Quickly test the capacity of your battery. Test multiple sizes 9V: PP3, MN1604, 6F22, 006P 1.5V: AAA, HP16, MN2400, R03 AA, HP7, MN1500, UM3 C, HP11, MN1400, SP11, LR14, UM2 D, HP2, MN1300, SP2, R20,UM1.