Originally Posted by
Tourist in MSN
Thanks.
FYI - I prefer rechargeable batteries, thus I am not considering buying Lithium AA or AAA batteries. But, my camera owners manual specifically says for cold weather use Lithium AA batteries. And suggests having a spare set that is in a warm pocket. So, if I needed to have working batteries in very cold weather, I would try those out. My camera uses Li Ion batteries, but has an optional adapter to use AA batteries.
I used to have a Canon point & shoot camera that used two AAs. When I used nimh AA's, it would quickly shut down in cold weather. My newer Canon Powershot p&s uses a proprietary lithium battery and it seems to tolerate cold temperatures quite well. A typical scenario is when I'm out on XC skis....
I'm not sure if the lithium performs better than NiMH, or if the difference is due to the lithium having a nominal voltage of 3.7V versus the nominal 2.4V of the two AA NiMH of my earlier Canon. I suspect both used similar technology circuitry that had similar minimum voltage requirements.
I do like the idea of having a AA adapter for a camera! It would be nice to have a cheap alternate power source when needed. ...although... I imagine that the adapter costs about as much as a spare lithium battery?
Steve in Peoria