battery design capacity

kinsella81

macrumors newbie
Original poster
Aug 9, 2014
6
2
Hello,

Just got this and love it so far but I have a question. According to coconut battery the design capacity is 98.5 percent. Shouldn't it be 100 or a little over for a new machine? My previous MacBooks always had over capacity when I first purchased them. The cycle count is 2 and the battery age is 85 days. I am just wondering if I should be worried about this considering how much I paid for it. Thanks!
 

BoneHead001

macrumors 6502a
Nov 13, 2013
520
240
Livonia,MI
Hello,

Just got this and love it so far but I have a question. According to coconut battery the design capacity is 98.5 percent. Shouldn't it be 100 or a little over for a new machine? My previous MacBooks always had over capacity when I first purchased them. The cycle count is 2 and the battery age is 85 days. I am just wondering if I should be worried about this considering how much I paid for it. Thanks!
That was the very same thing that bothered me.
 

Max(IT)

Suspended
Dec 8, 2009
8,551
1,661
Italy
Hello,

Just got this and love it so far but I have a question. According to coconut battery the design capacity is 98.5 percent. Shouldn't it be 100 or a little over for a new machine? My previous MacBooks always had over capacity when I first purchased them. The cycle count is 2 and the battery age is 85 days. I am just wondering if I should be worried about this considering how much I paid for it. Thanks!
first: batteries aren't all equal. There are variations in production tolerances.
second: the value measured by this kind of app aren't so precise. A 1-2% difference is normal.
third: a new battery needs a few cycles to "stabilize".

To sum it up, enjoy your notebook .
 

JackieInCo

Suspended
Jul 18, 2013
5,178
1,598
Colorado
Hello,

Just got this and love it so far but I have a question. According to coconut battery the design capacity is 98.5 percent. Shouldn't it be 100 or a little over for a new machine? My previous MacBooks always had over capacity when I first purchased them. The cycle count is 2 and the battery age is 85 days. I am just wondering if I should be worried about this considering how much I paid for it. Thanks!
Completely normal. I don't have the new MacBook but I do have two MBPs and the 2015 has 99% capacity and the 2012 has 98.6%, both have 6 cycles. Neither one has started out at 100%. I bought both this summer.
 

mtneer

macrumors 68030
Sep 15, 2012
2,892
2,054
I think the battery maker's and Apple's Quality Control would account for that couple of cycles and the slight deviation from 100% capacity?
 

kinsella81

macrumors newbie
Original poster
Aug 9, 2014
6
2
I think the battery maker's and Apple's Quality Control would account for that couple of cycles and the slight deviation from 100% capacity?
Thanks everyone. I was just wondering if it's normal or something I should be worried about. The battery is now at 95% with only 4 cycles. I'm gonna leave it charged for a few days and see if that makes a difference. I just don't want to find down the road that it's a faulty battery.
 

mtneer

macrumors 68030
Sep 15, 2012
2,892
2,054
Thanks everyone. I was just wondering if it's normal or something I should be worried about. The battery is now at 95% with only 4 cycles. I'm gonna leave it charged for a few days and see if that makes a difference. I just don't want to find down the road that it's a faulty battery.
In any case, if your battery does degrade below 80% design capacity, I believe Apple will replace that for you within Warranty or AC+, whichever is valid at that time. I can't find a link to confirm that at this point.
 

bizzle

macrumors 6502a
Jun 29, 2008
936
36
Thanks everyone. I was just wondering if it's normal or something I should be worried about. The battery is now at 95% with only 4 cycles. I'm gonna leave it charged for a few days and see if that makes a difference. I just don't want to find down the road that it's a faulty battery.
Here's a brilliant idea.

STOP WORRYING ABOUT IT.
 

kinsella81

macrumors newbie
Original poster
Aug 9, 2014
6
2
Here's a brilliant idea.

STOP WORRYING ABOUT IT.
I know know, you're right. I haven't been able to sleep all weekend because of this and I haven't had much of an appetite either. Your words of encouragement to not worry has changed that and I thank you very much for this very brilliant idea.
 

Cvx5832

macrumors regular
Nov 2, 2014
237
88
Hello,

Just got this and love it so far but I have a question. According to coconut battery the design capacity is 98.5 percent. Shouldn't it be 100 or a little over for a new machine? My previous MacBooks always had over capacity when I first purchased them. The cycle count is 2 and the battery age is 85 days. I am just wondering if I should be worried about this considering how much I paid for it. Thanks!
Try cycling t a bit more. You'll lose more before it plateaus at around 90%.
 
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