Battery running down extremely fast?

[brn2rnjk1]

I have a new MBA with 4G memory (250g hd). When I first got it, and calibrated battery, if I unplugged the computer, the initial time the battery showed remaining was over 7 hours (this is before I did anything).

Now, I have tried everything including recalculating, and it is giving me only 3.5 hours remaining. And it drains quickly even without doing anything.

I cant seem to figure out what to do and why the battery is suddenly showing half capacity.

Thanks in advance.

 

[2IS]

Have you tried doing a restart? An actual restart, not sleep or hibernate by shutting the lid. It could be a stuck process sucking up cpu time and thus, battery life.

 

[simsaladimbamba]

Have a look at Activity Monitor ( Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.

image below uses sorting by CPU as an example

 

[brn2rnjk1]

There seemed to be very little running. Tried to up load screen shots, but not sure how to do it with Grab. Also did a coconut and didn't really see anything.

 

[simsaladimbamba]

There seemed to be very little running. Tried to up load screen shots, but not sure how to do it with Grab. Also did a coconut and didn't really see anything.

Have you made sure you selected "All Processes"?
Attach an image via these means: https://forums.macrumors.com/showthread.php?p=11836587#post11836587

Btw, Coconut is only a battery measuring tool, not a process measuring tool.

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

 

[brn2rnjk1]

The activity monitor is saying that my lexmark cups Driver is using almost 100% of the cpu (of course, don't know what that drain is). Does that make sense?

 

[brn2rnjk1]

Well went to the apple store and think we figured it out. I must have tried to send a doc to my wireless printer a while back and it never went. But the MBA was constantly trying to send it. So, all is well.

Thanks for all your help. The All Applications look was the key.