Looking to upgrade my compact point-and-shoot camera. Which kind of battery -- Li ion or AA -- holds up better in the cold on the slopes?
Li-ion every time. I try to avoid cameras that take standard (eg AA/AAA) batteries. While they are convenient, I just thing the performance isn't as good.
Get at least one spare Li-ion battery for your camera, and carry the spare in an inside pocket on your jacket to keep it warm when you're on the snow - that way it will hold its charge longer.
You can extend the battery life on the slopes (no matter what type) with a few other tips:
1. Carry the camera in its case, or close to your body.
2. If you're skiing with friends, don't show them every shot you take while you're on the slopes. Equally, don't spend more than a couple of seconds reviewing the photos on the slopes.
3. Switch off the LCD.
(2 & 3 are basically the same issue - the LCD will drain the power, so the less you use it, the better)
Generally, with Li-ion, I'll check or charge the batteries each night, by doing that I probably won't need to use the spare battery, or worry about the 3 tips above.
Thanks to both. So, taking the two messages together: other features being equal, choose a camera that uses a rechargeable LI-ion battery, and do the things listed by WTFH. But if I get a camera for reasons other than the batteries, and it uses AAs, I'll get lithium AAs as recommended by Jamesj.
I have no knowledge about Fox's special Li-ion batteries, but yes, I found regular lithium AA batteries (available in any US drugstore) to be about 5 times longer lasting than regular akaline AA batteries at only about twice the cost. The regular akalines sometimes die without ever working at all on days when temps are in teens or below.
PS: I never review pics on slopes, but take about 30-50 per day and 4 or 5 videos. Two Lithium AA in my inexpensive digital camera will last about 10 days at that pace. I carry extra batteries and camera when on exotic ski trips.
For cold Li-ion batteries are not best option. If your camera will be out on cold longer, then NiMH batteries are still way to go. That's also reason that until very recently all pro cameras had or still have NiMH batteries and not Li-ion batteries.
I'm not sure of your definition of "Very recently", but for the last 5 years or more, Canon pro gear has run on Li, not NiMH
(BP-511 in the 5D and LP-E4 in the 1D)
I was referring exactly to Canon 1d, which are cameras I'm using for my work. 1d and 1ds (original one, mk2 and mk2n) are all using NiMH batteries (NP-E3). 1dmk3 is first one with Li-ion batteries, and reason for Li-ion in mk3 is not better work, but lower weight.