Macbook battery dumped it's charge overnight...+ other 'issues' ?

Joined
Mar 18, 2007
Messages
4
Reaction score
0
Points
1
Location
UK
Your Mac's Specs
White Macbook 13" 2.0Ghz
Hi all,

I have a new Macbook, approx 2 weeks old. Last night after editing I saw the battery was 99% charged so unplugged the charger at put the machine to sleep.

This morning I went to wake the machine up but no joy...dead. I plugged the charger back in fired the machine up and opened up Coconut battery to check the power status. For some reason the battery had dumped all it's charge, it was reading something like -1mAh. Any idea why this would happen all of a sudden ? I still have it charging now, the reading is 3498mAh @64%

Another weird thing I noticed is that the currecnt battery capacity stands at 5434mAh but the ORIGINAL capacity is only 5200mAh.

Is this normal, or do I have an odd battery ?

BTW , 1st post here....have trid the search but couldnt find a similar issue to mine.

Cheers,

Marc
 
Joined
Jun 6, 2006
Messages
1,153
Reaction score
94
Points
48
Your Mac's Specs
MacBook 2.0GHz White, 512MB RAM, 60GB HDD
Sounds like you've got a duff battery. If you got it from the Apple store just take it back and they will sort it no problem. In fact, they probably have some in stock for just this type of thing.
 
Joined
Dec 1, 2006
Messages
1,495
Reaction score
34
Points
48
Your Mac's Specs
MBP 2.4/2GB/200HD/256 8600gt
yea, since apple has been having so many battery problems lately, they have a bunch in each store for just such an occasion.
 
Joined
Nov 27, 2006
Messages
2,071
Reaction score
332
Points
83
(1) It's possible your computer didn't go to sleep when you closed the lid. I've had that happen twice in about four months, and it kills the battery.

(2) Calibrate your battery before trying to figure out what Coconut is telling you.

(3) Once you've calibrated the battery, run the computer on battery power for a while and see how accurate the battery meter's prediction is (if it says you had 4 hours of power when you start and after an hour you're around 3 hours left, for example).
 
Joined
Feb 13, 2005
Messages
1,186
Reaction score
73
Points
48
Location
New Orleans, LA, USA
Your Mac's Specs
13" Macbook Pro 2.26Ghz Unibody 4G RAM 160G HDD Superdrive
Mine did that once shortly after I got it. Same thing, noted battery charge in the upper 90s, closed lid to have it 'sleep' overnight. Next day, wouldn't wake up until I connected it to power. When it finally awoke (I may have had to restart it, I don't recall) battery was at 7%.

Applecare walked me through resetting the Power Management System, which if I recall involved powering it completely down, removing the battery, pressing the power button for 15 seconds, putting the battery back in, then charging.

Hasn't happened since.
 

Shop Amazon


Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
Top