battery question

xtn

macrumors regular
Original poster
Apr 30, 2007
114
0
Los Angeles, CA
hey guys,

i was wondering if anyone else is having this problem. my battery will get to 39% or so and suddenly it will be fully depleted and shut down on me. i've noticed this happens a lot when my fans are running around 3-4000 rpms. i thought it was just a fluke, but its been happening more and more and is getting quite frustrating. thanks for any help!
 

devman

macrumors 65816
Apr 19, 2004
1,240
4
AU
what machine do you have? how old is the battery? run system profiler and tell us what the battery stats are.
 

xtn

macrumors regular
Original poster
Apr 30, 2007
114
0
Los Angeles, CA
MBP 2.16 GHz Intel Core Duo

Batter stats:

Battery Installed: Yes
First low level warning: No
Full Charge Capacity (mAh): 4856
Remaining Capacity (mAh): 4841
Amperage (mA): 178
Voltage (mV): 12610
Cycle Count: 248

I'm know I calibrated it as soon as I got it, which was over a year ago.
 

pilotkid

macrumors 6502a
Aug 22, 2006
915
51
Chandler, AZ/Chicago, IL
Does anyone have this problem too?
I do but mine happens at like 8-10% and I tried calibrating my battery (isnt what where you let it run down tell it turns it self off then you let it fully charge?) but it just did it the other night again, so I'm thinking it might just be getting old. According to coconut it only goes to 79% of its capacity now and its got 269 cycles on it and its just about a year old.
 

xtn

macrumors regular
Original poster
Apr 30, 2007
114
0
Los Angeles, CA
sorry, i thought calibrating a battery when you first get it (b/c batteries have a memory) and depleting it once a month were two different things. but yes i do calibrate my MBP once a month, but the thing is still shutting down on me. iStat tells me me that it's health is 87% and it has 248 cycles.
 

CalBoy

macrumors 604
May 21, 2007
7,829
36
sorry, i thought calibrating a battery when you first get it (b/c batteries have a memory) and depleting it once a month were two different things. but yes i do calibrate my MBP once a month, but the thing is still shutting down on me. iStat tells me me that it's health is 87% and it has 248 cycles.
Hmm. I think this is a case where Apple owes you a new battery. Call them and explain the situation, along with the fact that you've been calibrating. A battery shouldn't jump from 35% to 0% in one minute.
 

xtn

macrumors regular
Original poster
Apr 30, 2007
114
0
Los Angeles, CA
Thanks guys.

CalBoy, I used your recommendation and gave Apple a call. After 40 minutes of diagnostic check ups, they decided to send me a new battery free of charge so I have no complaints!

Thanks for all your help!
 

CalBoy

macrumors 604
May 21, 2007
7,829
36
Thanks guys.

CalBoy, I used your recommendation and gave Apple a call. After 40 minutes of diagnostic check ups, they decided to send me a new battery free of charge so I have no complaints!

Thanks for all your help!
I'm glad Apple didn't give you any trouble. I hope it all works out for you.:)