Frozen PSP batteries?

Question

Some time ago I wanted to turn on my PSP but it didn't work. It was really cold (I was outside) so I thought that maybe the batteries were too cold. (it wasn't freezing though) I removed the batteries and held them in my hands for a few seconds. Then I put them in the PSP again, and guess what? It worked!

The batteries we're nearly depleted though. I thought battery power decreased faster in a warm enviroment? Isn't this true?

Answer 1

Batteries are powered by chemical reactions.  The reactions are slowed by cold temperatures.  If the batteries are nealy dead anyway, as you said yours were, the cold temperature could easily have made them the difference between them working or not.    

Batteries don't run down faster in warm temperatures as such.  But storage in a warm place for a time may cause the chemical reaction to occur even without electron flow.  This will take some time with todays batteries.  An alkaline battery today has a shelf life of about 9 years.  The older carbon battery had a much shorter shelf life.  

  

    

Answer 2

no

you have to keep the electrons moving to have power/electricity and when things move they get warm

( example:  if you leave flash-light running for a long time the battery compartment gets warm)

but if you rub the battery ( to make it warm) the electrons will begin to move again, creating power

so if they get cold they stop moving

or

if they stop moving they get cold.

so power decreases faster in cold environments but not that much faster

if you let the batteries get too cold they will loose power eventually though