94 % battery life

iamjustin

macrumors member
Original poster
Jul 21, 2007
43
0
i had my mbp for just under a month and already istat says my battery health is at 94%. is this normal? is there anything i can donwload or do to bring the health up or is this a problem?
 

iBookG4user

macrumors 604
Jun 27, 2006
6,596
2
Seattle, WA
From my experience MacBook Pro batteries are just bad to begin with, but try calibrating as suggested above. Sometimes that will raise the capacity.
 

vicious7

macrumors 6502a
Jul 16, 2007
818
0
Jacked into the net...
Also, don't be afraid to use your battery. Their potency naturally erodes over time and use. Once in a while, discharge your battery to about 25% and charge it up again. Don't leave it plugged in all the time. You should only be calibrating your battery once a month.
 

kuebby

macrumors 68000
Jan 18, 2007
1,556
1
NorCal
A related question:

I just bought a used MBP and the battery health is listed by iStat as 52%. I haven't calibrated it yet so I don't know yet if that will help it at all. My question is if there is any chance Apple would give me a new battery (still under Applecare). Otherwise is buying a battery from eBay safe? They seem to be going for good prices there.
 

DeepShadows

macrumors newbie
Aug 13, 2007
19
0
I just got a brand new OEM Apple MBP battery still in the package that apple ships them in for $49 and it works perfect. :)
 

klymr

macrumors 65816
May 16, 2007
1,447
98
Utah
Calibrate it and it should bring it back up. Mine has dropped down to 99% and it's only on the 3rd cycle. My first battery (slowly developed charging problems) had dropped down to 96% and after a while it jumped back up to 100%. I think you'll be fine.
 

bobcan

macrumors 6502a
Jan 8, 2007
680
5
Sunny but Cold.. Canada
Would U care to elaborate on this...

I just got a brand new OEM Apple MBP battery still in the package that apple ships them in for $49 and it works perfect. :)
This is a Stock Apple Batt or Apple-like item :confused:... Please advise and perhaps Post a Link for us "Little People" who might Bite on the Deal too!! Thnx_ ;)
 

DoFoT9

macrumors P6
Jun 11, 2007
17,532
31
Singapore
the battery health does deviate. its like everything else. it will change up and down depending on certian conditions.

e.g. as the battery runs low (10%-15%) the health might drop a few points. 90% health is still good!
 

polycat33

macrumors 6502
Jul 1, 2007
437
1
Alexandria, VA
That sounds low to me. After a month I was still at 100%. I'm at 97% now at two months (and it just dropped down from 98% a few days ago). What's your battery usage like? How many cycles are you at? You'll for sure want to try calibrating, it could be that you're getting more than 94% and with calibration the comp will realize that and set it up to it's correct percentage.
 

DeepShadows

macrumors newbie
Aug 13, 2007
19
0
This is a Stock Apple Batt or Apple-like item :confused:... Please advise and perhaps Post a Link for us "Little People" who might Bite on the Deal too!! Thnx_ ;)
Yup, real stock apple battery, the real thing...

http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&rd=1&item=200135825514&ssPageName=STRK:MEWN:IT&ih=010

That deal ended, but you can find similar deals like this:

http://cgi.ebay.ca/orig-A1175-Battery-for-Apple-MacBook-Pro-15-inch-Laptop_W0QQitemZ150150445520QQihZ005QQcategoryZ116323QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

I got a really good deal, looks like they aren't as cheap anymore, I would hunt around... although 59 USD is still cheap for a brand new battery.