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hey,i recently purchased a macbook pro 15" 512gb and it is showing different battery percentages at lockscreen and after logging.there is a 4% difference in the battery percentage & even my battery is consumed faster it shows a backup time of 4-5hours and i have tried ressetting the smc as well as pram and even installed a fresh software but no luck.Can anyone help me with the same?
MacBook Pro with Retina display, OS X El Capitan (10.11.6)
Battery % is not that accurate and is a little dependent upon load. At lockscreen the load is lower than after logging on since more services are running after login.
THus, what you seeing is normal
Battery % is not that accurate and is a little dependent upon load. At lockscreen the load is lower than after logging on since more services are running after login.
THus, what you seeing is normal
but the percentage on my lock screen is lower than what i see after login for example my lock screen shows 89% and after logging in i see 93% so that's the opposite of what you are saying.
All I said is that % battery is different for different load. I did not say a higher load results in lower %
I Understood what you said but thats no solution to my problem but thanks anyway.
You do not have a problem.
% battery is not that accurate.
I've noticed this on mine as well and it does not appear to be a problem. Battery percentages on your computer are not a direct measurement, but instead they are adjusted so that it remains 'fully charged' when the actual percentage is at or above 95%. This is done to protect the battery when it is left plugged in fully charged. In this specific situation, the number you are seeing at login is the direct measurement of charge remaining over full charge capacity. You can see this by going into the System Information app and selecting 'Power' on the left sidebar. This provides extensive information about your battery, including the charge remaining and full charge capacity. If you check this immediately after you turn on your computer and calculate the percentage by dividing charge remaining over capacity, it will be the number you saw at login, but not the number that is currently displayed. Why the percentages are not adjusted as soon as they are displayed, I don't know, but as lllaass said, you do not have a problem and there is nothing that you can or need to do to fix it.
macbook pro 15" shows different battery percentages
