How to use a very budget friendly battery tester to check your battery’s power

How to use a very budget friendly battery tester to check your battery’s power

The budget battery tester is an older version of one found on Amazon to check how much juice is left in a battery.

This video shows a couple different types of batteries - double A, 9-volt, CR2032, and CR123A.

The tester used does not have a protruding bottom piece so a steel paper clip is used as a conductor.