Originally Posted by MichaelX30
Then why do AAs in my freezer last longer in my GBC (yes a Game Boy Color, I'm old school
) than newly bought batteries from HEB?
Alkaline batteries start losing power immediately after production (Lithium cells have the longest shelf life). I know many people swear by storing their AA's in a freezer, but have yet to see any scientific proof that it extends their shelf life enough to make it worth the hassle (batteries just don't last that long in our house). They still need to be brought up to room temp before use however, or they will drain faster.
Batteries will drain faster when they are cold, but they won't go dead in minutes, probably lose about 25% of battery life. You must remember that if the laptop is running before you take it out in the cold, it will have some internal heat to keep things warm for awhile. If you were to turn it on after it was sitting out and allowed to cool down to -25 C that would be a different story. Also, as stated earlier care should be taken when bringing the computer back into a warm environment after being out in the cold.
To sum things up, I don't think 30-40 minutes will hurt the laptop as long as it's running and nice and warm before you take it outside.
Oh, and -25c isn't cold, it's a little brisk, but a long way from truly COLD!!!!!