TESTER METER DO BATTERY 9V Function: 1. Tester: Widely used do various batteries, including but not limited to C, AA, AAA, D, N, 9V, 6F22 and other batteries. 2. Easier testing: This battery controller will accurately display whether the battery is in bad, low capacity or good voltage condition. 3. Better display: Digital display allows you to see the remaining battery capacity clearly, very convenient and reliable. 4. Simple to work with: The whole operation is very simple, which ensures high work efficiency to save both labor and time. 5. Easy portability: Comes with a lightweight and compact size, the battery capacity meter allows for easy daily portability. Specification: Item Type: Battery Checker Material: ABS Function: Do testing C, AA, AAA, D, N, 9V, 6F22 battery and 1.5V 3V push button battery. List of packages: 1 xBattery control