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Battery state - don't know what to think!

V

valesco

macrumors newbie
Original poster
Nov 18, 2012
2
0
Hi guys,

I just bought a used MBA 2011. Great, except concerning the battery, which gets depleted really fast.

I ran Coconut battery in order to check its state, and it says that the battery is in good shape. This is strange.

Any idea ? Here is a picture so that you can see what I mean... It says "3:39 left" on the top, with 91 % of the charge. Yet the battery's health is great.

Capture%20battery.png
 
GGJstudios

GGJstudios

macrumors Westmere
May 16, 2008
44,545
943
valesco said:
Here is a picture so that you can see what I mean... It says "3:39 left" on the top, with 91 % of the charge. Yet the battery's health is great.
Click to expand...
From the BATTERY LIFE FROM A CHARGE section of the following link:
  • Your "time remaining" indication is an ever-changing estimate, based on the current workload of your system. It will fluctuate up and down from minute to minute as your power demands change. It is not perfectly accurate, but only an estimate.
Click to expand...
The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
 
V

valesco

macrumors newbie
Original poster
Nov 18, 2012
2
0
GGJstudios said:
From the BATTERY LIFE FROM A CHARGE section of the following link:

The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.
Click to expand...

Thanks a lot, I'll make sure to read that. I quickly read the beginning, and before I posted I checked the CPU activity. I have had a white macbook for 5 years before this MBA, so I know that the estimates may fluctuate. However, in my case they never fluctuated beyond very low figures, with CPU idling. :(
 
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