I am building a charger for NiCD batteries and wondered if it was possible to accept the battery in either orientation and rather then protecting the battery detect the battery's polarity and switch the charging current polarity so it can be charged either way around? Thanks in advance!
Thanks for your responses! The idea is to do it for a single NiCD AA battery. It seems that most charging chips do check the polarity as a safety measure. Is there any reason they don't use the result to change the charging polarity rather than cutting the charge altogether. I guess its not really any more difficult?
Thanks again guys. I have been told by the person doing the electronics that it's going to need 2 power relays and a fair bit of additional feedback circuitry which makes it work. this pretty much rules it out. Does anybody have any smart solutions?