Originally Posted by Fire Escape
I have been keeping disposable Lithiums in my GPSs for a few years now. It's been a long time since I read the manual but I thought that it said that in the case of rechargeables, they would not charge in the device and would have to be charged in a 'real' charger. That made me think that there were diodes at work keeping the batteries from being charged if left in place but that is all conjecture at this point.
You got that right. Garmin handhelds do not recharge batteries when plugged into a power source except of course the Montana with its Garmin Lithium battery. The Montana can also be used on AAs, but will not charge them even if they're rechargeable.
Want to know more about the Garmin Montana? See the Wisdom and FAQ Thread.
"Don't play a lute to a cow" (Old Chinese Idiom)
"The motorcycle, being poorly designed for both flight and marine operation, sustained significant external and internal damage," police noted.