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shuweiyu16

macrumors member
Original poster
Mar 21, 2007
45
0
I am wondering why my battery life is stuck at 95%....keep in mind my power cord is attached 99% of the time.
Any input is appreciated.
 
Every 3 months you should calibrate your battery. Charge it until the light goes green, unplug it, then use the system until it goes to sleep. Wait until it shuts right off (takes a few hours so I recommend timing it for when you're in bed) then plug it back in and charge it up to full in one go.

Doing that will keep the battery "healthy" and make it retain more charge.
 
To prevent constant charging and discharging of your battery, the adaptor stops charging at 100% and doesn't resume until 95%. After a while you should notice it start to charge back up again. It's perfectly normal to have your machine plugged in and showing anywhere between 95% and 100%. :)
 
Wait, are you talking about battery health or battery capacity, because you've just got the two answers here but they sorta answer slightly different questions...
 
Wait, are you talking about battery health or battery capacity, because you've just got the two answers here but they sorta answer slightly different questions...

Neither battery health nor battery capacity...OP was battery life meaning percentage of battery capacity that is currently available for discharging. :)
 
Well, battery life could also be in reference to how long the battery will last before it needs replacement, but that's an entirely different kettle of fish.


kettle-of-fish.jpg



See?
 
Y'all jes like it when thangs stay complicayted!!!

Battery Health surely is the condition of the battery's charge-holding ability relative to when it was new, where as Battery Charge is simply how much juice is in there relative to it being 'full'...?
 
okay screw the technicalities.

basically, if the battery is at 95-100%, the adapter and laptop will not charge any more. this is to make the battery last longer in the long run.
 
okay screw the technicalities.

basically, if the battery is at 95-100%, the adapter and laptop will not charge any more. this is to make the battery last longer in the long run.

So, this means it is no problem when I am having it pluged into the charger all the time and it stays stuck at 99% full? (the green light on the cord/plug is on)

It actually means it's a good thing I understand?
 
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