ITEM NAME:BT-168 Universal Digital AAA/C/D/9V/1.5V Button Battery Volt Tester Checker NC BT-168 Universal Digital AAA/C/D/9V/1.5V Button Battery Volt Tester Checker NC a.imagelink a:hover.imagelink {color:#AF212D;.Checks power level of all 1.5V & 9V batteries. b. 9V: PP3, MN1604, 6F22, 006P How to Use The battery tester may be used to test the following sizes 1 x Battery Tester. a. 1.5V: AAA, HP16, MN2400, R03.