In article , Alex wrote:
Well, there's some law that says thing should work for around 6
years. But I don't know the specifics - maybe someone else does.

That's the maximum period for bringing a claim. How long you might
reasonably expect the batteries in a PPro tool to last is the
pertinent question.

I suspect that the OP's admission "Despite using it only on the very
rare occasion, " may have something to do with it.

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