13" MBP battery all over the map

[cosrocket]

I have a 2011 13" MBP. I calibrated the battery, but it seems that from minute to minute there can be wild swings in what it shows for remaining battery time. One minute it can say 7 some odd hours, and the next 4 and back to 6 etc..

Is this normal and if it isn't is there anything I can do to get a more accurate read?

 

[simsaladimbamba]

Normal, as the CPU fluctuates.
A better reading would be setting the battery icon in the Menu Bar to percent (%).

This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ

 

[JosephRedfern]

Would be better if it gave a reading based on the last 5 or so minutes of CPU usage, IMO.

 

[simsaladimbamba]

Would be better if it gave a reading based on the last 5 or so minutes of CPU usage, IMO.

www.apple.com/feedback