The other day, without warning, the battery in my mobile died. It still appeared to have about 80% charge in it at lunchtime, in the afternoon when I next looked at it, it wouldn't even switch on. I had left it on, I normally do because I get a good week's use on one charge. A couple of people I have talked to say that this has happened to them. I only have had a couple of this type of battery, so my sample size is too small to be meaningful. There must be some of you out there who have much larger experience of NiMH. How often does this sort of total failure occur relative to gradual?
John Schmitt