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+--- Thread: MacBook Pro battery losing charge (/showthread.php?tid=95628)
MacBook Pro battery losing charge - pqrst - 04-11-2010
Hi there
I have a Santa Rosa Macbook Pro 15. The battery was recently replaced under Applecare because it won't hold a charge (dropped 100%->65% in 6 hours) but the problem persists (awake from sleep). And suggestions about where to start with troubleshooting the problem. I'd rather not reinstall osx.
Thanks
Re: MacBook Pro battery losing charge - iaJim - 04-12-2010
How many cycles are on your battery. Is there any possibility they didn't replace your battery with a new one?
Re: MacBook Pro battery losing charge - IronMac - 04-12-2010
Did you run the Apple Hardware Test?
Re: MacBook Pro battery losing charge - pqrst - 04-12-2010
The system profiler shows 1 cycle. I'm pretty sure that it was a brand new battery, it had the the cello wrap around it and I saw them open up the box at the genius bar. Hadn't thought to run hardware test, but will do it.
Re: MacBook Pro battery losing charge - space-time - 04-12-2010
charge it 100%, take it out, wait 6 hours, put it back.
Does it show 100%? then it looks like there is a defect in your MacBook which drains the battery when connected. Tell them to replace/repair the MacBook, not the battery.
Re: MacBook Pro battery losing charge - JEBB - 04-12-2010
When the battery drained was the MBP off or asleep with the lid open?
If the latter, I believe that is normal. That's what happens to my MacBook and also to my daughter's MacBook. I think WiFi and Bluetooth keep running thus draining the battery. If you want it to really sleep, you need to close the lid. If it was off, follow space-time's advice.
Re: MacBook Pro battery losing charge - pqrst - 04-12-2010
Thanks, I'll try the suggestions starting with the hardware test and pulling the battery.
Re: MacBook Pro battery losing charge - pqrst - 04-16-2010
Should the macbook pro drop to 96% of charge in 3-1/2 hours? The laptop was attached to the magsafe adapter, shutdown and then disconnected. The lid was closed. Started up it showed the 96% charge.