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On Saturday I am flying out to Nepal for a few months, I intend doing some trekking and at one stage of my trek I will be climbing to 5400mtrs, so the batteries will be getting cold, they say its best to keep them in your pocket or some where warm to preserve the power, do I just put the battery in my pocket or is it best to wrap it in some thing. Also I would like to know is if I see the power going down on the battery in the camera... swap it over to 1 that is warm so to speak then put the 1 from my camera in my pocket does it revitalise it?
The other thing is, is there a way to tell the difference between lose of power through the effect of cold and just general use.
Many thanks Ray
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A sign of loss of power due to the cold can usually be detected by the how your battery performs in average temperatures.
If you are in a cold climate and the batteries are draining faster than usual that's the reason.
When I've been in really cold conditions I tend to swap the batteries when they show signs of getting low.
The idea is to keep the batteries that are not in your camera near to your body and the heat from it keeps them working longer.
Leaving them in an outside pocket would probably be a waste of time.
I tend to keep them inside a well insulated jacket and that usually does the trick.
It will be enough to put it in a cloth bag and slip it into a pocket inside your jacket during the day and your sleeping bag at night - just remember that if you put it in your down jacket pocket and take the jacket off it may get cold again. Warming a cold battery will put some life back into it but not much. In my experience there is no way to tell the difference between losing power due to use and to the cold, other than it runs down quicker.
I was in Nepal for 6 weeks in 1991 with a Pentax ME Super and one pair of button batteries lasted me all the time I was there, plus another 3 months travelling in Asia. Battery life is one downside to digital cameras, especially so with MFTs whose battery life is barely 300 shots but otherwise make a great travel camera.
Apparently many lodges now have charging facilities but have you considered a solar charger? You may also want to get into the discipline of minimal chimping, manual focus for scenic shots and no machine gunning
I've spent all day at -32C and managed with 2 batteries using a Nikon D70. I kept the battery not in use in my shirt pocket.
Quote: I've spent all day at -32C
And you're welcome to that Denny......I'll stay in the warm being the wussie that I am
That was about 7 years ago Ade, I've softened up a bit since then.
Quote: That was about 7 years ago Ade, I've softened up a bit since then.
Softened up or thawed out?
Age takes its toll.
Probably irrelevant but when out on the Alps photographing royals we used to keep one set of batteries in use and another in a pouch strapped to the inside of the armpit ans swap them regularly.
May be best to deodorize them at the end of the day!
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