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Battery capacity dying faster than it should?

J

johnhalsted

macrumors member
Original poster
Nov 3, 2010
67
0
I had my 13" for about 2 months and iv'e noticed the battery capacity is going pretty quickly, im already at 94%, is it worth taking it back to get replaced?

Note: I have calibrated the battery once when it arrived and also do it once per month.

Z6d53.png

original capacity was 6715
 
J

johnhalsted

macrumors member
Original poster
Nov 3, 2010
67
0
loosing 3% capacity per month? so after 1 year battery will be about 64% after 400 ish cycles at my current rate. And i believe apple say if it goes under 80% capacity within 1 year and it has under 1000 cycles it gets replaced free.

Just wondering if anyone else is having same problem?
 
J

johnhalsted

macrumors member
Original poster
Nov 3, 2010
67
0
Its being used every day and i have been monitoring the total capacity weekly and it has been decaying steadily.

Just also phoned apple and they said if its still going down in a month its going to get free replace :D:D
 
vocabdude

vocabdude

macrumors newbie
Feb 1, 2011
4
0
that's normal, even laptop batteries degrade with time and use, I have a acer laptop which when it was new lasted about 5 hours on battery power, now, after 2 years it doesnt even last 1...
 
b-rad g

b-rad g

macrumors 6502a
Jun 29, 2010
895
1
Over Achiever said:
My battery health went down to 96% last month and today is back up to 98%, I think there are some reporting error involved. I wouldn't worry about it much right now.
Click to expand...

Exact same thing with mine went down to 96% and now back up again.
 
M

mattydee87

macrumors regular
Aug 22, 2008
221
0
Yeah my current MacBook Pro battery health often switches from between 86% and 92% all the time
 
K

KPOM

macrumors P6
Oct 23, 2010
18,031
7,870
I have used 16 cycles since mid-November and am still at 100%. That seems pretty rapid to be down to 94%. Let us know what happens.
 
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