Like many homeowners, I keep a stockpile of batteries on hand. But figuring out which ones are still charged? That's the real challenge.
No need for expensive testers. This proven bounce test, a go-to trick among DIY enthusiasts, works every time.
1. Hold the battery 15cm above a table and drop it.
2. If it bounces once and falls straight down, it's charged.
3. If it bounces repeatedly, it's empty or nearly empty.
Now you can easily tell full batteries from dead ones. It's quick, practical, and saves money by avoiding waste of good batteries—or prompting timely replacements when needed.
