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Saturday, March 11, 2017

Aldi NiMH battery fail

Some of our rowing boat lights have died.

I previously bought new rechargeable NiMH batteries from Aldi and installed them.

The lights are sealed with silastic against water ingress.

Upon opening, it was obvious that a battery had probably leaked.  The other possible option was that some silastic release acetic acid.

The circuit boards are corroded and beyond repair.

Visually a couple of the batteries have a brown mark near the positive terminal.  It looks to me like the acid leaked out there.

The question is why?
Options I can think of are:
1 Dodgy batteries.
2 Over charging.

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