In the support document, Apple addresses the issue and assures i Phone 6s and i Phone 6s Plus users that it is working on a fix.
Weirdly, the company says the issue is caused by time zone changes, whether done manually or automatically while traveling (via Mac Rumors).
The easiest way to do that is to run the "System Information.app" found in /Applications/Utilities/.
"System Information.app" is the name of the app in Lion and Mountain Lion.
You might prefer to go to System Preferences » Energy Saver and set "Computer Sleep" to "Never".
I use an external monitor at my office with the Mac Book closed, and simply turn off the power to the external monitor if I'm not going to be using it for awhile.) If recalibrating doesn't seem to help, you might need to check your battery's overall health.
Then, the next day, I will plug it in and let it charge through the workday, again running Caffeine to keep it awake.
This means that the battery percentage icon could display that you have much more battery life left than you actually do.Apple offers a battery replacement service for all Mac Book, Mac Book Air and Mac Book Pro notebooks with built-in batteries.Putting any battery directly in the bin is dangerous for the environment and for those who live in it.By servicing your Apple batteries only through Apple or an Apple authorised service provider, you can be sure they’ll be recycled with respect for the earth.You can recycle your entire device with us, battery included — you might even qualify for credit to use towards a new Apple product.