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charliem
1485 days ago

Testing Rechargeable Batteries

I have two sets of 4xAA batteries that I use for my camera.

One set's died (won't hold a charge), but unfortunately i've got them mixed up now - so don't know which ones are good and which ones aren't!

Does anyone know an easy way to test them?

Thanks!

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superdewa
1485 days ago

Do you have something that takes just one AA battery that you can test it on? We have a couple of MP3 players that take one AA. Otherwise, a battery tester?

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ben-s
1484 days ago

Check the side of the battery for a batch number. I've done this once or twice myself, and sorted them out by batch number.
To avoid this happening again, it's worth labelling your batteries by set.
You could also use a multimeter or battery tester to check which ones are charged.

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charliem
1484 days ago

Thanks - I bought a battery tester but it shows they're all good?

Can't see a batch number on them (they were cheapo eBay jobs).

Any other ideas? Maybe i'll try charging them again - probably just forgot to charge one set.

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ben-s
1484 days ago

Try running them down a bit in a single cell torch or similar and test them again. You should be able to flatten them to a point that the dead ones are flat and the good ones are still showing a charge.

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