@maxeddy Takes a long time for Duracell's to do that or a lot of temperature changes. Got to remember to remove the batteries from devices I am not using for a year or two, but I never seem to.



Indeed. I saw a small amount of corrosion yesterday in an old wireless mouse. It used to be quite common until the 90s or so, but I hadn't had this happen for decades now.


@0 @maxeddy Solar lights always have this issue with NiCd or NiMh chemistries due to the wide temperature ranges. It opens the vent to release pressure which corrodes the terminals. Best to coat the contacts taking care to avoid greasing the vent with silicone grease as soon as you get them.

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