NiMh CHARGING

[Yorkie]

Here's a link to a useful .pdf document from National Semiconductor detailing the differences in charging requirements for NiCd, NiMH and Li-Ion cell types and giving some example circuits for chargers (using their ICs of course).

http://goo.gl/scTIG

That's a really useful link Ian - a very comprehensive, well illustrated and informative 17-page article, including details of how to bild the most appropriate chargers. I've printed in off - it's definitely a 'keeper'!

I use nicads in things like my PC wireless mouse, and they get quite warm to the touch, but I wouldn't say 'hot'. I've also recently bought a dozen 2800mAH NiMh AA cells for my son's R/C boat, which came with a trickle charger, and they too get quite warm.

I'll look forward to studying the article.

Thanks once more for the link Ian.

David