I doubt it. The Time Remaining is just a Guess based on what the system was doing just before you checked the Time Remaining. If the system was asleep or not doing anything the Time Remaining will go up. If it is being used that TR will go down. It really does not matter what that reads as depending on what you are doing on the computer you can use the battery up much faster than what TR reads. And just because it says it has X amount of time left doesn't mean the battery won't run out before that time.
"Time remaining" indicator on Mavericks is currently inaccurate, techs. are working on a fix for same.
rely on mAh remaining and battery % to a degree.
Wow, thats quite an annoing bug in Maveriks, good to know although in the shop it was using Mountain lion. I'm assuming the other MBA owners are seeing less battery life due to higher clock speeeds, therefore higher voltage are required. Can't wait for the next Maveriks update. Thanks for the help guys
Another tip is to calibrate the battery at least every few months.
a) Fully charge your MacBook.
b) Once fully charged, leave it plugged in for at least another 2 hours.
c) Remove the MagSafe power adapter, and use your computer until it reaches around 5% remaining.
d) Plug in your MacBook and charge it to 100% battery life.
e) Once fully charged, your battery has been properly calibrated.
Zombie Slayer reaches around 5% remaining.////your battery has been properly calibrated.
You DO NOT want to purposefully drain the Lithium cells low.
As per apple: Portables with built-in batteries Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure
From Apple on batteries:
LiPo battery packs in your macbook do NOT need (nor can they really) be calibrated.