Great item to eliminate your cluttered drawers and closets. Helps keep your batteries neat and organized! also includes a battery tester that you can easily remove. The tester doesn't require any batteries for operation. It works on the power of the battery you are testing! you can store it conveniently in your drawer, closet or you can mount it on the wall. Stores up to 93 batteries in various sizes! including 45 AA, 25 AAA, 4 9 volt, 8 C, 6 d and a "swing drawer" for 5 flat batteries.