Dlyfull Magnetic Battery Tester Universal Checker for AA AAA C D 9V 1.5V Button Cell Batteries, Requires No to Operate

Magnetic Design: Free your hands and no more dropping. Universal battery tester with magnetic slider, automatically holds the battery securely when you put it in Testable battery types: 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 Easy to Use: Simple operation, just put the battery in and test it, no need to select the battery type. Dlyfull battery tester shows the true battery status, saving you throwing away good batteries and keeping bad batteries Easy to Read: Battery checker gives accurate reading with needle indication, results are displayed in different colors. Green (GOOD), Yellow (LOW), Red (REPLACE). Fast and intuitive No Batteries Required: The AA battery tester is powered by the battery being tested. No more worries about the device running out of power and not being able to use it Compact and Functional: The household battery testers are easy to store and carry. It can be placed in a drawer or carried in a backpack. Does not take up much space and can be taken out for use at any time