Digital Battery Tester Household Battery Checker Tester for Small Batteries Button Cell BT-168D Digital Battery Tester for AAA AA C D 9V 1.5V, Household Battery Checker Tester for Small Batteries Button Cell (Model: BT-168D) 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 Lightweight and compact design measures 11Ã?? 6Ã?? 2.5 cm Never again get caught with a dead household battery. This handy digital battery tester makes it easy for you to get the most out of your batteries and lets you know when it is time to get a new one.