Battery Tester - SODIAL(R) BT-860 Battery Tester battery voltage tester for AA AAA C D N 9V batteries round cell button battery Suitable for all single use & rechargeable AA, AAA, C, D, 9V, 1.5V, PP3- & most button cells With the tester you can quickly test the Capacity of your battery Note: only the battery tester but do not contain battery