App to show battery usage while on/sleeping?

[sniffs]

Anyone know of an app that'll track battery usage while my MBP and MBA sleeps and while it's on?

Seems there's inconsistent battery drops during sleep periods..

 

[GGJstudios]

Anyone know of an app that'll track battery usage while my MBP and MBA sleeps and while it's on?

Seems there's inconsistent battery drops during sleep periods..

By definition, if the Mac is asleep, no apps would be running, including any battery app.

For sleep issues, you may find some useful ideas here:

• Mountain Lion: About Power Nap
• Determine why your Mac wakes up from sleep
• OS X Mountain Lion: If your Mac won’t go to or stay in sleep
• Mac OS X: Why your Mac might not sleep or stay in sleep mode
• One sleep problem caused by printers - solved ... and another
• If your Mac isn't sleeping properly and you have gfxCardStatus installed, try uninstalling it.

The link below should answer most, if not all, of your battery/charging questions. If you haven't already done so, I highly recommend you take the time to read it.

Apple Notebook Battery FAQ​

 

[sniffs]

What about while it's on and you're using it?

 

[GGJstudios]

What about while it's on and you're using it?

Use iStat Pro (free) or iStat Menus ($16) to get accurate readings of your battery, temps, fan speeds and much more.

A forum member has posted a copy of iStat Pro that has been "tweaked" to resolve some issues with Mountain Lion. You can download it here.