Originally Posted by Syclone0538
I have some unopened AA and AAA, regular duracell, that I leave in the car. How, and how much does cold weather affect them? If I they are warm when I use them are they as good as new after a bunch of cold/warm cycles?
Should I switch them out for lithium batteries?
I won't be leaving eneloops in the car, but how do they do with cold weather?
Depends what you mean by cold weather.
IIRC...newer Eneloops are rated to -4...
..but lithium primaries are good to around -40.
BTW....I do not keep alkalines in my BOB or GBH gear..
..mostly lithium AA & SF-123A mainly for their long shelf life..
..and also due to cold weather performance, higher energy density & lighter weight.
As far as extreme cold...there are workarounds...
..such as keeping warm or warming less capable batteries before use..
..and if in a flashlight...the internal heat generated & partially insulated by a gloved hand is more than the temperature loss due to extreme cold combined with wind.