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Guy King

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If you read up on the "memory effect" you will find that it is very
rare indeed. It only occurs when a NiCad is repeatedly charged and
discharged in *exactly* the same way (i.e. both times and levels). It
was discovered in NiCads used on satellites where the cycling was very
regular indeed.

Can happen with model aircraft - run at full pelt until the onboard
electronics cut the power at a given voltage and then are recharged
using expensive controlled chargers. Exactly the situation you describe.

--
Skipweasel
Pay no attention to that man behind the curtain.