Why do AAA batteries leak so often?

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Re: Why do AAA batteries leak so often?

I rarely ever see them leak, except when they have been sitting in something for many years (8 or more). I wonder if the flashlight incident was due to one cell being much weaker and being reverse charged by the other two. Personally I avoid 3 x AAA cell LED flashlights even though many are dirt cheap these days.

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Re: Why do AAA batteries leak so often?

That's because Duracell 9V batteries are in reality 6 AAAAs in a can. like AAAs but smaller and thus even more likely to leak. (good to know if you need AAAAs but are cheap).

The same is true for 6v latern batteries... although what kind and quantity varies by brand. some have C cells, some have AAs...

I don't recall if they were Duracell or Energizer, but I've seen some 9V that used a different design with a stack of 6 clear plastic rectangular cells that individually looked unlike any standard cell form factor I've ever seen.