Battery at 99%

[maggie820717]

Hey guys, just wondering... is it normal to have my battery at 99% with the AC adaptor plugged in (but not charging)? b/c i left it plugged overnight but my MBP was off. It was at 100% before.

i just got my MBP a few days ago, and i calibrated my battery already.

Thanks!

 

[awer25]

Yes that's normal.

 

[Auzburner]

Yep that's normal. It won't charge until you're around 95% from what I recall.

 

[GGJstudios]

Hey guys, just wondering... is it normal to have my battery at 99% with the AC adaptor plugged in (but not charging)? b/c i left it plugged overnight but my MBP was off. It was at 100% before.

It's normal that your battery may stop charging between 93-99%. For details, read the CHARGING section of the following link.

i just got my MBP a few days ago, and i calibrated my battery already.

The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries.

This should answer most, if not all, of your battery/charging questions:

Apple Notebook Battery FAQ​

 

[maggie820717]

Oh i see. Thanks guys!

Also, is there a way of changing the charging threshold to like 90%?

 

[GGJstudios]

Oh i see. Thanks guys!

Also, is there a way of changing the charging threshold to like 90%?

No. Mac OS X manages the battery without the need for user interference. Just run on battery whenever you need to and plug it in whenever you can. You can plug or unplug at any time, regardless of the charged percentage. Just make sure you don't run on AC power all the time, as your battery needs to be used regularly to stay healthy.

 

[Auzburner]

Oh i see. Thanks guys!

Also, is there a way of changing the charging threshold to like 90%?

Nope. Not easily.

 

[Sparky9292]

Hey guys, just wondering... is it normal to have my battery at 99% with the AC adaptor plugged in (but not charging)? b/c i left it plugged overnight but my MBP was off. It was at 100% before.

i just got my MBP a few days ago, and i calibrated my battery already.

Thanks!

Yes, i just got my non retina MBP yesterday and wondered the same thing (I was worried I had a bad battery).

Read this link: http://support.apple.com/kb/TS1909

 

[Prof.]

It's normal.

 

[IceAero]

I'd ask for a 1% refund, plus interest even.

 

[heyimandy]

Yeah Apple does this with all of their products. It's basically protecting your batter life by not going quite to complete cycle, so it's not over charging and damaging.

 

[gentlefury]

It's normal.

This computer is a year old.