My 2011 15 inch macbook pro battery life capacity went from 97 percent (6500 something mah) to 83 percent (5732 mah) over night. I shutdown my macbook pro but forgot to switch off the power last night.Help!
MacBook Pro, Mac OS X (10.6.8)
Try this: It might or might not help but it's worth a try.
Do a SMC/PRAM reset.
Use your battery until it's down to 30% and then recharge it to full and see where your battery capacity is at.
Let me know if that works for you.
PlotinusVeritas wrote:
Csound1 wrote:
Keeping your Mac plugged in most of the time is fine.
Apple Inc. says otherwise, as such thats not the case.
http://support.apple.com/kb/HT1446
"Apple does not recommend leaving your portable plugged in all the time."
Do you not understand the difference between 'most' and 'all' of the time?
I can explain it if the difference eludes you.
Your advice is incorrect.
Csound1 wrote:
http://support.apple.com/kb/HT1446
"Apple does not recommend leaving your portable plugged in all the time."
Do you not understand the difference between 'most' and 'all' of the time?
Both are the case, quantification between "most" and "all the time" would be generalized as the difference between:
70% to 80% + roughly as = "most of the time"
vs. "all the time" as = obviously 90%~ + 100% of the time.
In either case, on a full charge, having ones notebook on charge 70% + or more of the time is still a massive amount of parasitic charging (if in sleep mode), and therefore also empirically, and quantifiably bad on the battery chemistry.
In which case the absolute and strict wording of "all the time" on Apple.com Inc. , in this one instance, is specifically incorrect and needs correction.
Parasitic charging is demonstrably negative from empirical experimentation by battery manufacturers from being on charge "most of the time"
Semantics aside, and not relevant to helping the user, one should not be on charge "most and/or all the time"
If you want to argue with me show some respect for the OP and take it to the WC,
I'm done with you here.
mondesigns wrote:
Ya thats why i was worried at the time. Though my battery had gone bad but next few charges the capacity increased. Ya i am mostly connected but i use it sometimes for 'battery exercise' which is important i heard. One thing i can say for sure is don't discharge it completely. Thats how my sister ruined her dell battery in less than a year.
So long as you recharge (from 20-50% to 95-100%) once or twice a month you are fine, and your battery health (for age and use) is normal.
Some posters here like to overwhelm users with their 'knowledge'
Ignore it.
Help! Macbook pro battery capacity
