L.Store Universal Battery Tester for AA AAA C D 9V Button Cell Batteries Status Checker Please order only L.Store original with L.Store logo for quality assurance. SMALL & PRACTICAL - Simple but effective little battery tester checker, compact size and TESTING DEFFERENT BATTERY TYPES - It works with all household standard and rechargeable household REQUIRE NO BATTERY TO OPERATE - Easy-to-read ,the analog display needle moves on a color-coded, PERFECT FOR HOME USE - Great small tool can tell you if your battery is good, low, or needs to be