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94% battery health in 2 month old 2011 13" MBP...?

S

snakemajestic

macrumors member
Original poster
Feb 25, 2011
39
0
I started using istat a few days ago and now I'm goin crazy over monitoring the battery...

A few days ago, I was at 96% battery health which seemed goofy for a brand new computer. And now I'm at 94% health. Should I be concerned about this?

I calibrated the battery following the steps on apple's support page but it obviously didn't help.

Anyone have any insights....?

Please and thank you
 
snakemajestic said:
I started using istat a few days ago and now I'm goin crazy over monitoring the battery...

A few days ago, I was at 96% battery health which seemed goofy for a brand new computer. And now I'm at 94% health. Should I be concerned about this?
Click to expand...
It's quite normal for your battery health to fluctuate up and down over time. Calibration doesn't affect your battery's health; it only makes the readings more accurate. This should answer most, if not all, of your battery questions:
 
Did you experience a significant drop in battery life?
If not,then you have nothing to worry about.
You could try calibrating. :)
 
I`ve read all the comments and chosen not to comment on the comments as as it will cause people to comment on my comments thus generating more needless comments.

Comment away...


OP: don`t worry, it`s fine. ;)
 
ranviper said:
Well, considering my mbp 2010 is11 months old and at 92% health...not really sure. Hopefully it won't continue to die at that rate...
Click to expand...
Mine too 10 months and 91%. Calibrating has never changed anything at all. It didn't "fluctuate" to higher capacity for months. It only knows the way down.
 
dusk007 said:
Mine too 10 months and 91%. Calibrating has never changed anything at all. It didn't "fluctuate" to higher capacity for months. It only knows the way down.
Click to expand...

Bear in mind your battery often doesn't come at "100%". often it already has load cycles / not 100% health. If you calibrate it correctly then you will always have optimal performance. Also 91% at 10 months! WOW that is excellent, after 10 months most computer batteries apart from MBP i have come across would be reading ~50%.
 
Macsavvytech said:
Bear in mind your battery often doesn't come at "100%". often it already has load cycles / not 100% health. If you calibrate it correctly then you will always have optimal performance. Also 91% at 10 months! WOW that is excellent, after 10 months most computer batteries apart from MBP i have come across would be reading ~50%.
Click to expand...

Simply untrue in so many ways.
Calibration has NO effect on battery performance whatsoever it simply improves the accuracy of the battery indicator.
A brand new MBP may show 1-2 loadcycles but even that would be fairly unusual.
(91% in 10 months does not surprise me at all, mines at 94% @ 176 cycles and approx 8 months old.

The ONLY thing I actually agree with is your opinion of PC batteries generally.
Having said that, plenty of Vaio`s I`ve seen could give the MBP a run for it`s money battery wise.
 
Macsavvytech said:
This ^
Love how people including myself sometimes comment on peoples comments and then get commented on because of how they commented because they didn't read the comment. :D

Fubar1977 said:
I`ve read all the comments and chosen not to comment on the comments as as it will cause people to comment on my comments thus generating more needless comments.

Comment away...


OP: don`t worry, it`s fine. ;)
Click to expand...
Click to expand...

me thinks you two need a life ;) ;)


i honestly dont see the commotion over the batteries but.
 
Yeah when I calibrated my MacBook as soon as I got it last month, the health went down to 98%. Calibrated it again this month and its gone down to 96%. Not really worrying about it battery life seems about the same.
 
I don't know if I have calibrated the battery yet, but here is mine. It stays plugged in quite a bit (80-85% of the time)
 

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I have stopped worrying about the battery health.
To get best amount of battery life,use safari browser with max 3 tabs open(with no flash).
Anymore,and you will now get your 10hr or 7hr battery life
 
22 week old MBP, Battery at 93% health??

I have owned my macbook for 22 weeks and the battery health is at 93% and only 38 cycles. Is that normal? I am fairly concerned :confused:


help please
 
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