"Too_Many_Tools" wrote in message
oups.com...
I also note that Radio Shack has an overnight charger and a fast
charger that does AA through D sizes. Is there an advantage in having a
slower charging rate? In other words, are the "fast charging" NiHM
batteries have a problem that the slower charging batteries don't?

Theoretically speaking, slow charging will give more recharge cycles before
the cell is worn out. However, with a decent delta-v charger doing fast
charging, it's less of an issue these days. In the past, fast charging cells
using the timer method was brutal and could often result in overheating and
overcharging.

Dave