Wide application: Use this battery tester to test all types of batteries: AA, AAA, C, D, 9V, mini cell). Different battery models can measure the power of various batteries to meet your multifunctional needs . Accurate and easy to read: easy to read, the number indicates the power level. Function: can be used to quickly test the battery capacity. Easy to carry: compact and small size, easy to carry, you can use anytime and anywhere. Usage: no battery needed for operation, so convenient to use Perfect for someone who regularly uses regular or rechargeable batteries. There are plenty of batteries around the house. It's easy to tell if there is electricity or not! Just buy a battery tester and go home. Features: Material: ABS insulating plastic shell Battery: no need to install battery Size: 52.6mm/23.4mm/53.9mm Display: digital display screen Weight: 30g Package List: 1xDigital Battery Tester