Battery Tester,Household Battery Tester,Universal Battery Tester,for AA AA C D 9V 1.5V Button Cell Batteries

Practical Helper - Just check the current battery level. It is very suitable for determining whether the battery is consumed in the drawer, etc. It can quickly measure the battery voltage and digitally display the test result. FLEXIBLE USE - Suitable for AAA, AA, C, D, 9V block and button batteries and other battery types. There are two different contact points on the device, 1.5V + 9V batteries can be used to measure The operation is simple: insert the battery according to the polarity direction, read and go. | Slider adaptable to different battery sizes | Tricolor simulation shows clear results | No additional power supply required EASY TO READ The handheld portable device design is easy to read. NO BATTERY REQUIRED - The battery tester is activated by the battery being tested and can work without battery. Test battery life anytime, anywhere.