New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
OS X - Operating System General OS operation information and support

OS 10.4 - Short Battery Life


Post Reply New Thread Subscribe

 
Thread Tools
Judex

 
Member Since: Dec 07, 2008
Posts: 1
Judex is on a distinguished road

Judex is offline
I have a MacBook (2 GHz Intel Core Duo) that's about 3 years old. Lately I've had absurdly short battery life. Today I took it to a cafe. It was fully charged up, and I started it up fresh. I worked for about 45 minutes with two applications open (Safari and MS Word), and it suddenly did a hard shutdown. It didn't even give me any warning or go to sleep -- just the shutdown. The battery percentage was at about 75 or 80%.

I've already taken it to the Genius Bar and they did a quick diagnostic and said my battery is normal. (They gave me coconutbattery.) I've tried the battery calibration, and it usually results in the same hard shutdown. The fan has not been running very often, and the system doesn't seem too taxed. I have no idea what the problem could be. Any ideas would be appreciated. (Hopefully I'm not looking at a new battery...)

Thanks!
QUOTE Thanks
eric

 
eric's Avatar
 
Member Since: Nov 04, 2006
Location: twin cities, mn, usa
Posts: 8,801
eric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond reputeeric has a reputation beyond repute

eric is offline
i would do two easy things first.

reset the PMU - remove the battery and power lead and hold the power button about 5-10 sec. then reinsert the battery and power lead and start up.

then remove the power lead and run on battery. in your situation, you'll want to keep an eye on it til it dies, since it seems to be giving you bad % readings. Once it dies, plug the power lead back in and charge it to 100% in one go. check the stats in either the system profiler or coconut and see how healthy the battery is then. also, give it another test to see if the battery drain and % seem more aligned.

my guess is you have a battery that is on it's way out due to normal to heavy use (lots of medium to deep discharge cycles and maybe a few other things that normally affect this). and maybe an issue where the estimated and actual % aren't synced properly.
you may just need a new battery, hopefully. the alternative is likely a new power unit in the macbook, which is a pricier proposition.

Please participate in our Member of the Month polls. Every vote counts! And remember to use the user reputation system!
["Dear Homer, I. O. U. one emergency donut. Signed, Homer." - Note by Homer Simpson]
QUOTE Thanks

Post Reply New Thread Subscribe


« Transferring ITunes and I photos | free space problem »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
iPhone 3G Battery Life kishan82 iPhone Hardware and Accessories 25 08-20-2008 10:48 AM
Ways to increase battery life.... Blade753 Apple Notebooks 3 07-18-2008 01:03 PM
the battery life may not be that much better but.. theraker007 iPhone Hardware and Accessories 1 07-13-2008 12:13 AM
ibook battery life. NOKI Apple Notebooks 9 10-26-2005 10:37 PM
G4 Battery forza Switcher Hangout 1 06-17-2004 04:44 AM

All times are GMT -4. The time now is 06:38 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?