Is there something wrong with my brand new rMPB battery?

Question

I recently got my new rMBP and I am not sure if it has some sort of defective battery or not. I feel as though the battery discharges far too quickly, often going from 96% charge ("8:27 remaining") to 87% charge ("5:08 remaining) or so in a matter of thirty minutes, perhaps sometimes more. I wasn't sure if this was due to having Mavericks since I have read that there have been a lot of cases where Mavericks has been responsible for short battery lives, or something of the sort.
I am sure that Chrome is responsible for the majority of the fast discharging of the battery, but  find it hard to believe that it would take up so much energy so fast.
On a side note, I would like to know if there is a "better" way to charge the battery? Is it bad to have it plugged in the whole time? Should I only begin to charge it once it reaches 20% charge left or only charge it up to 80% charge to avoid overcharging? These are just some things I have read or heard here and there.

Answer 1

DanielGiron wrote:
I recently got my new rMBP and I am not sure if it has some sort of defective battery or not. I feel as though the battery discharges far too quickly, often going from 96% charge ("8:27 remaining") to 87% charge ("5:08 remaining) or so in a matter of thirty minutes, perhaps sometimes more. I wasn't sure if this was due to having Mavericks since I have read that there have been a lot of cases where Mavericks has been responsible for short battery lives, or something of the sort.
I am sure that Chrome is responsible for the majority of the fast discharging of the battery, but  find it hard to believe that it would take up so much energy so fast.
I would contact AppleCare and see what they have to say (90 days free phone support).
On a side note, I would like to know if there is a "better" way to charge the battery? Is it bad to have it plugged in the whole time? Should I only begin to charge it once it reaches 20% charge left or only charge it up to 80% charge to avoid overcharging? These are just some things I have read or heard here and there.
The info you're reading refers to older battery models. For current batts, you can charge them as often as you like; the only thing you don't want to do is let it sit for a year and go completely dead (this is not the same as letting it run down while you're using it until your MBP goes to sleep, that's fine).