Released October 2008 / 2.4, 2.53, 2.66, 2.8 or 2.93 GHz Core 2 Duo Processor

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battery problem after installing Snow leopard

My battery life lasted about 5hrs before I installed Snow Leopard. However after installing Snow Leopard my battery life only last about 2-3 hours. I have to reset the PRAM and NVRAM for it to last 5 hours. However after a few days the battery life will revert back to 2-3 hours. I went to the Mac store and they can't find anything wrong with it. Help!

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1 Answer

Chosen Solution

Battery cycles

tell the health of a battery. A two year old battery could be reaching its end of life. Anything over 300 cycles is nearing it's EOL even though it may still hold a charge, the discharge rates faster'' (as you noticed).

Go to Applications->Utilities->System Profiler: power this will show charging and cycle data.

If it's near or over 300 cycles replace the battery.

If it's not, run software update, there is a firmware update that you may have missed.

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Good Luck,


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