Is this an issue with other members? Gross overheating during re-charge?
I have 4 sets of 2400mAh Powertech Rechargeable Metal Hydride Batteries in my kit. I don't use them much but I top em up every couple of weeks - I use them in my Canon Speedlite, generally just for fill. I don't like to be without a set and because I'm paranoid have extra sets with me, just in case
I re-charged them all last night using two rechargers that each take four batteries. Each set takes about the same time to charge, say 30mins. After doing 2 sets of 4, I whip em out and do the second lot.
Now this observation is common and troubling - I've taken to storing them in red and blue containers for id purposes. 2 sets come out of the rechargers cold, they go in the blue, but the other 2 sets come out very hot. I decided to submit this thread last night cause the hot ones were just so hot, I could only hold them for a few seconds for fear of literally burning my hand.
I'm pretty attentive and remove them from the recharger when they are done.
I wonder why there is this difference, 8 come off the charger "cold" and 8 come off "hot".