Features: The battery tester detects the battery power at a second speed and the battery is no longer wasted. There are a lot of batteries at home. It's easy to tell if there is electricity or not! Just buy a battery tester and go home. No need to install the battery, no need to use the battery to detect the battery power, which is very convenient and easy to use. Push and pull the handle up and down, easy to operate and can be extended up to 90mm at most. LCD display. Clear display without parallax. Different battery models can measure the power of various batteries to meet your multifunctional needs. Features: Material: ABS Package size: 6*6*3 cm Package weight?: 30g Package List: 1xDigital Battery Tester ?