Here is an amazing and simple way to test whether alkaline batteries are charged!
If you have a device that doesn't seem to be working and you don't have a multi-meter or battery tester, you can check a batteries charge by doing this simple test!
Watch the video and see the test results including slow-motion which shows the bouncing of the discharged battery! Pretty amazing! Try it out yourself and let us know your test results!
Read the details in this Instructable after the video.
Step 1: Pre-test Check
I took two batteries, an Energizer and an Enercell. Both AA batteries and both Alkaline. The Energizer was almost fully charged reading 1.45V. The Enercell was discharged down to only .69V