I have a AA battery in a pack I bought three weeks or so ago. One of them already has a fuzzy end (non bumpy side), and I was wondering if it was still any good. Anyone know?
Fuzzy as in corroded? I’d say that indicates that it’s got something wrong with it. Does the pack have an expiry date on it?
I agree with Mangetout that it sounds like corrosion. A leaking battery can ruin the device you put it in. I wouldn’t use that battery. I probably wouldn’t use the remainder of the pack either, they may be about to start leaking.
If you just bought this pack, return it for a refund. If the retailer won’t take it, contact the manufacturer’s customer relations department.
The electrolyte is leaking out and has dried into crystals. Check the expiration date and return them to the store for a refund.