View Full Version : Calibrating MacBook Battery
pinoyplaya
Mar 26, 2009, 03:53 PM
Hey guys, I fully charged my MacBook last night and I used it since this morning using only the battery. Followed the instructions so far.... now I only have 8% battery life left (0:21 remaining) according to the battery indicator. So it should die pretty soon. :)
So once it goes to sleep I have to wait at least 5 hours and then recharge it to full capacity right?
After I wait 5 hours of it being asleep, can I recharge while using the MacBook?
DPA
Mar 26, 2009, 03:58 PM
I left mine on E over night and plugged it in before I wen to the gym in the morning. It worked out perfectly (no pun intended). I think the support page on Apple Support says 12 hours but it's been a while since I've last done this. Come to think of it, I could use another calibration.
David
pinoyplaya
Mar 26, 2009, 04:01 PM
Here's my battery information from coconutbattery... which I just downloaded a minute ago. :)
Edit: Age of my macbook says 3 months and I just got it yesterday or two days ago :(
And is my battery good? 4446mAh?
Peace
Mar 26, 2009, 04:02 PM
Where did you find the instructions at ? I couldn't find them for the new unibody Macbook.
pinoyplaya
Mar 26, 2009, 04:04 PM
Where did you find the instructions at ? I couldn't find them for the new unibody Macbook.
I think they are all the same instructions.
DPA
Mar 26, 2009, 04:04 PM
You Mac was not built the day you bought it, right? It is counting from the first time it was booted up and the OS was installed at the factory.
David
pinoyplaya
Mar 26, 2009, 04:06 PM
Oh I see. So I guess mine was built on around January :) woot lol
Anyway... 3% left. I got a warning saying it will go to sleep to preserve memory or something like that.
So anyway... I guess I will be surfing in 5 hours :)
I should be able to use the MacBook while its charging right to calibrate the batter after 5 hours of it being asleep with no power left
DPA
Mar 26, 2009, 04:08 PM
You will be able to use the MacBook once the battery has reached 15% full.
David
belvdr
Mar 26, 2009, 04:10 PM
I think this calibration crap is hilarious. I've never calibrated any PC laptop battery yet they still hold up.
DPA
Mar 26, 2009, 04:18 PM
Calibrating is done, mainly, to calibrate the battery's computer so you can get an accurate approximation of how much charge your battery has left.
David
GfulDedFan
Mar 26, 2009, 04:43 PM
Where did you find the instructions at ? I couldn't find them for the new unibody Macbook.
Here's the official article about battery calibration (http://support.apple.com/kb/HT1490).
pinoyplaya
Mar 26, 2009, 08:19 PM
My Maximum Battery Capacity went from 4447 mAh to 4228 mAh after Calibrating the Battery :(
Argh...
lankox
Mar 26, 2009, 10:01 PM
My Maximum Battery Capacity went from 4447 mAh to 4228 mAh after Calibrating the Battery :(
Argh...
As previously stated, the calibration produces a more accurate reading.
pinoyplaya
Mar 26, 2009, 10:19 PM
As previously stated, the calibration produces a more accurate reading.
Liked it better when it gave me false results haha :)
pinoyplaya
Mar 27, 2009, 12:42 AM
Now it went back up to 4443 after I unplugged the power and plugged it back in lol. :)
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