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nitra.candy

macrumors newbie
Original poster
Jun 13, 2008
22
0
Hi,
I recently got my first Mac but the battery once fully charged never goes to 100%. I downloaded iStat Nano to check the battery health.

Cycles:6
Health: 99% (4082 mAh)

Is this normal for the readings to drop so much for a new laptop?
 
It is quite normal but if you are concerned try running the battery all the way down to the point where the computer warns you about low power and then let it charge over night to see what happens. Hope that helps.
 
I've actually already calibrated it. I put the plug back in when I was getting the low battery warning.
I'm calibrating it now and going to let it completely die before I charge it to see if that makes much differences.
I'd just like the battery to be at 100% health.

Edit: I'm a she.
 
I've actually already calibrated it. I put the plug back in when I was getting the low battery warning.
I'm calibrating it now and going to let it completely die before I charge it to see if that makes much differences.
I'd just like the battery to be at 100% health.

Edit: I'm a she.

Don't worry about it. The difference between 100% and 99% is 4085 and 4086 MA in the battery (around there)... it will jump between the 99 and 100 and it is 100% ok for that to happen. Just sit back and enjoy your new computer. It'll migrate up to 100% over time.
 
hey, my macbook (alu) is just gettin to its 1 week old mark, haha

i noticed mine does the same, unplug the power adaptor and use it until it gets to about 50% charge then plug it in and let it fully charge!!!

that should then show 100%, its a tiny thing but i was worried when it happened to me

:D
 
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