Battery Health dropped from 100% to 72% in one day?

A

Advil

macrumors 6502a
This is very odd... What could have happened?
It's a fairly new uMBP 2.4
2u54coi.png
 
Try calibrating it...directions are easy to find. Just search for battery calibration. If that doesn't work...the warranty will likely cover it.
 
Either it's a calibration issue or a dud battery. Either way, calibrate it and if that doesn't work then get it replaced.
 
Was it exposed to any extreme weather conditions? Physical damage? Power surges? Anything?

If it just happened totally out of the blue while not doing anything out of the ordinary, then perhaps it is a freak thing and should be replaced.
 
No extreme weather or power surges at all. I'm very careful with it.

It's gone down almost another 10% now...

k06f54.png


how?!?!
 
as you can see in the second screen shot i'm currently running the battery down to calibrate. i'm watching some videos and stuff to make it go faster, i'm at 35% (24 minutes) remaining.
 
My battery capacity is larger than original.....???
Is this normal?

In regards to your battery...seems odd to me but a calibrate might fix it.
 

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My battery health was 97% from the factory, and went up to 100% after 1 week of use.

It appears that your health seems to depend on how quickly you drain the battery.

If you put it at the dimmest brightness, and do nothing and just let the mbp drain for the entire day slowly, and then plug in and let it re-charge overnight, it should help your health.
 
wow....


no one noticed that the OP does not even have his charger connected, and he wonders why his battery is depleting. Really makes me wonder who posts here


incredible.
 
gothamm said:
wow....


no one noticed that the OP does not even have his charger connected, and he wonders why his battery is depleting. Really makes me wonder who posts here

incredible.
Click to expand...

wow...

someone didn't read the thread carefully enough to realize that the issue is battery capacity and not battery charge. Really makes me wonder who posts here

incredible.
 
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