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
Switcher Hangout The place for switchers to discuss their new machines, and how to work with OS X. General support can be had here for newbie stuff, like "How do I restart my new iMac?" :)

Battery fluctuations after calibration


Post Reply New Thread Subscribe

 
Thread Tools
rbg5q

 
Member Since: Nov 27, 2006
Posts: 11
rbg5q is on a distinguished road

rbg5q is offline
Hi all,

I just bought a macbook last week and I calibrated the battery the other day. Since then, the battery time meter in the menu bar fluctuates a lot. Just while I'll be surfing the net or typing a document, the meter will read 2:18, and then it will go down to 1:40, and then up to 1:50, and up and down... when it is on battery, the trend is one of going down, but I can't believe that this is right.

Anyone else experience this? Does it sort itself out over time?

Thanks!
QUOTE Thanks
trpnmonkey41

 
Member Since: Jul 22, 2003
Location: Hamilton College
Posts: 7,003
trpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to beholdtrpnmonkey41 is a splendid one to behold
Mac Specs: 20" iMac C2D 2.16ghz, 13" MacBook 2.0ghz, 60gb iPod vid, 1gb nano

trpnmonkey41 is offline
the time remaining is based solely on what you are doing at the time. Set it to look at the percentage to see the accurate reading. If that is fluctuating then you might have a problem

Don't forget to use the new User Reputation System
QUOTE Thanks
rbg5q

 
Member Since: Nov 27, 2006
Posts: 11
rbg5q is on a distinguished road

rbg5q is offline
so do other people have this problem also? It's not just me?
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
the time meter as trpnmonkey41 said, will vary by design.

as your machine is draining more power, it will show a smaller number, as it's using less, it will show a larger number.

it's probably about as accurate as a car with an "instant average" gas mialge indicator. i had one on a cadilac eldorado. if i was accelerating from a stop it could show anything from 0 - 10 mpg. if i was going an even 60mph it may show around 25-28mpg. and if i was going 80 or so mph it would show about 33-35mpg.

just use the % indicator and a clock. if you use for an hour and a half and it's down to 60% (off AC power), then you've probably got at least two hours before it'll want to sleep.
QUOTE Thanks
rbg5q

 
Member Since: Nov 27, 2006
Posts: 11
rbg5q is on a distinguished road

rbg5q is offline
I hear you, but it just doesn't seem to make sense to me. In the last 10 minutes I've not touched the computer. The battery meter has gone from as high as 4:46 to as low as 3:28. No change in my use, nothing equivalent to accelerating from a stop in a car.

I've heard so many bad stories about batteries I just want to be sure.

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
a computer does a lot of stuff without you touching it. especially one that does journaling and it's own form of defragmenting. what you're seeing doesn't surprise me at all.
QUOTE Thanks

Post Reply New Thread Subscribe


« Deciphering Activity Monitor | Email Help »
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
Is my battery dead for good? PFerrara Apple Notebooks 10 01-16-2007 03:58 PM
PB battery after calibration question j4kovzky Switcher Hangout 3 07-28-2005 10:37 PM
Powerbook/iBook Battery Recall jram Apple Rumors and Reports 18 05-31-2005 04:36 PM
iBook battery fails after HD replacerment ygab Apple Notebooks 2 08-22-2004 11:16 PM
ibook battery meter not working, Always 99% and calculation remaining afrodite Apple Notebooks 0 12-01-2003 05:42 PM

All times are GMT -4. The time now is 04:09 AM.

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?