Camera USB chargeable

[pirespt]

A friend of mine is off to Kilimanjaro next year. She already has a solar monkey and was asking me what cameras can be charged via USB. She has an old Nikon DSLR and a more recent Panasonic superzoom but neither of them allow it. She's looking for a more compact camera preferable inexpensive but sturdy enough to withstand the cold temperatures.

Any suggestions?

Thanks

David

 

[Ivan S]

I had a Nikon S3100 that could be charged by USB.