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appleguru1

macrumors 6502
Mar 13, 2003
307
4
Just drained mine and am re-charging it now... seems the capacity went up a bit... Still not great, but...
 

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dixiehacker

macrumors newbie
Dec 21, 2006
26
0
I have a 17" MPB C2D that is 3 weeks old. It has been through 6 charge cycles. My capacity is: 6447.
 

appleguru1

macrumors 6502
Mar 13, 2003
307
4
Just drained it again, reset the SMC too.. Getting better :p
 

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Nuks

macrumors 6502a
Feb 25, 2006
504
0
Just drained it again, reset the SMC too.. Getting better :p

Appleguru, did a full discharge/charge help? or did you calibrate it? And also, how do you reset the SMC (and what does resetting it do)


Mine isn't very good at all. I've re-calibrated a few times, but nothing's changed. Any help?

coconut.jpg
 

CHRISonTOPofHER

macrumors newbie
Aug 22, 2006
3
0
mine is definitely about 10 minutes. ever since the dc in board had to be replaced it just decided to... not be good. its a powerbook, but ehh, just beware of that corner of your mbp.
 

jamesarm97

macrumors 65816
Sep 29, 2006
1,090
116
Are my settings wrong? I have a new MBP C2D I received in November. All the postings here have shown ~5500mAh battery status. Mine is currently showing charging 6339mAh with a max of 6550mAh. The battery shows current capacity at 6500mAh and Original battery capacity of 5500mAh. 22 Load Cycles in 3 months.

- James
 

Chanabra

macrumors member
Dec 19, 2006
64
0
What is a load-cycle ?
...A full battery charge?

Should I avoid plugging my notebook in until it's low battery?
I use it during class, get home it's about 1/4-1/2 done... Then I plug it in, bad?
 

bearbo

macrumors 68000
Original poster
Jul 20, 2006
1,858
0
for those of you confused, if you have a macbook pro 17", your "original capacity" is not 5500, it's about 6500
 

Collin973

macrumors 6502
Mar 29, 2006
259
0
Apple just replaced my battery because my original died...

2 Cycles
Original Capacity: 5500 mAh
Current Capacity: 4500 mAh

WTF! time to call apple AGAIN.

These specs are worse than the one that died. At least that one was at 92% health, not 83%!
 

bearbo

macrumors 68000
Original poster
Jul 20, 2006
1,858
0
Apple just replaced my battery because my original died...

2 Cycles
Original Capacity: 5500 mAh
Current Capacity: 4500 mAh

WTF! time to call apple AGAIN.

These specs are worse than the one that died. At least that one was at 92% health, not 83%!

could it be caused by your computer? do you calibrate it?
 

walshb6413

macrumors member
Aug 22, 2006
79
0
Salem, OR
Nothing too surprising here:

This being my first laptop though, I am surprised at how quickly these things degrade. Only good for about a year or so I would imagine?

battery.png
 

jamesarm97

macrumors 65816
Sep 29, 2006
1,090
116
What is a load-cycle ?
...A full battery charge?

Should I avoid plugging my notebook in until it's low battery?
I use it during class, get home it's about 1/4-1/2 done... Then I plug it in, bad?

I was actually thinking about the same question at lunch. I mainly use the laptop at home and keep it plugged in all the time. When I go to work I take it with me but most of the time it is in sleep mode.

So, Will it hurt or is it bad to keep it plugged in say 12 hours out of a day. The other part of that is in only drains a little when unplugged and usually takes no more than 15 - 30 minutes to charge.

If the battery drops to 80% is it best to let it drain all the way before plugging it back in? You can compare it to keeping a gas tank topped of, or running it out and getting fresh gas. Which one is best, do these new batteries (macbook pro c2d) act like the older style that have a memory?

- James
 

hollerz

macrumors 6502a
Sep 13, 2006
709
1
Durham, UK
What is a load-cycle ?
...A full battery charge?

Should I avoid plugging my notebook in until it's low battery?
I use it during class, get home it's about 1/4-1/2 done... Then I plug it in, bad?

wondering this too, hopefully getting a MBP soon :)

What is a load cycle?

Would keeping it plugged in the majority of the time have a good or bad effect on the battery?
 

Texas04

macrumors 6502a
Jul 2, 2005
886
1
Texas
Mine is very very very good. I have two batteries but this one has had quite a few cycles.
 

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