AITRIP 2PACK Universal Battery Tester, Checker for AAA AA C D 9V and 1.5V Button Cell Batteries, No Batteries Required

Easy to Use - identify battery status simply by the analog display needle, "good" (green), "low" (yellow), and "replace/recharge" (red) AITRIP Battery Tester for AAA AA C D 9V and 1.5V Button Cell Batteries. Suitable for a wide range of household batteries, meet your needs in daily life Compact size and lightweight, portable effective battery tester,NOTE : 1. You can simply test battery voltage to determine whether the capacity of the battery is low or high. It won't directly detect the battery capacity precisely 2. Don't forget: The Battery Tester is activated by the battery being checked. Keep test times as short as possible to avoid unnecessary battery drain Require on Battery：activated by the battery being checked, no battery needed for operation battery tester aa; battery voltage tester; universal battery tester; button battery tester; small battery tester for aaa,aa,c,d, 9v