MW Battery Tester
Tests the health of primary & rechargeable AAA, AA, C, D & 9V size batteries. Also tests CR123A, CR2, CR-V3, 2CR5, CR-P2 lithium photo batteries as well as lithium coin cells & most common primary button cells. Runs on one AAA battery.
The tester is better suited for use with primary cells (that is non-rechargeable batteries). If your main purpose is to test rechargeable batteries, the Battery Wizard believes the Ansmann tester is a better choice.