Battery charging time on Rev.B MBA

Discussion in 'MacBook Air' started by faxao, Jan 24, 2009.

  1. faxao macrumors regular

    Joined:
    Feb 20, 2008
    Location:
    Milano, Italy
    #1
    The recharging time on my brand new Rev.B MBA after a full discharge took today 6 hours (3 cycles on battery). Is this normal?

    I have read that battery charge is quite slow on MBAs but 6 hours.....:confused:

    Thanks

    p.s. apart from that Rev.B MBA rocks !!:p
     
  2. jackiecanev2 macrumors 65816

    jackiecanev2

    Joined:
    Jul 6, 2007
    #2
    I'm assuming that it's new, or relatively new? For whatever reason, the first few charge cycles on the MBA take forever. My first few with over 10 hours. It'll drop down though, no worries. Now it takes about 2-3 hours to charge mine, 4 from dead empty.
     
  3. Mactagonist macrumors 65816

    Joined:
    Feb 5, 2008
    Location:
    NYC - Manhattan
    #3
    After 24 cycles mine takes about 4 hours from empty.
     
  4. andreab35 macrumors 6502a

    andreab35

    Joined:
    May 29, 2008
    Location:
    USA
    #4
    Mine takes quite a while to charge, but that aspect of the battery doesn't bother me a whole lot.
    My battery doesn't last too long... I think I give it about 2 1/2 hours without doing intensive work and with as much power savings options as I can on.
     
  5. faxao thread starter macrumors regular

    Joined:
    Feb 20, 2008
    Location:
    Milano, Italy
    #5
    Yes ..it is infact brand new: as a matter of fact this was the first full charge since I have switched it on for the first time 3 days ago....

    Hope it will get better soon and in the meantime I enjoy this awesome laptop, the snappiest I have ever owned :cool:

    Thanks for the prompt responses...
     
  6. GMACUK macrumors newbie

    Joined:
    Dec 26, 2008
    #6
    I'm thinking of buying my sister either a Macbook or MBA for University but are you saying the MBA battery only gives you around 2.5 hrs use?? Is that normal? My girlfriend has the new Macbook Pro and she is getting around 4hrs on it and i've got the previous gen macbook pro and i'm getting around 4-4.5hrs. So to me 2.5 is pretty poor.
     
  7. Mactagonist macrumors 65816

    Joined:
    Feb 5, 2008
    Location:
    NYC - Manhattan
    #7
    2.5 is pretty poor, I might get that with heavy downloading or something. I get about 4 hours for browsing and light office type use.
     
  8. andreab35 macrumors 6502a

    andreab35

    Joined:
    May 29, 2008
    Location:
    USA
    #8
    2.5 hours is pretty poor I do agree... for what Apple claims that this baby is supposed to get around 4 hours of battery life.
    But, don't let that stop you from purchasing a MBA. It's a beautiful machine that is so rewarding to have.
    If my battery does get worse, it's going to the Genius Bar.
     
  9. mikey28 macrumors 6502

    Joined:
    Aug 6, 2008
    #9
    Battery Charge

    I am glad that you brought this up, because I got my new Rev b 1.8/128SSD, Tuesday (4 days ago!) and it's taking the longest time to charge. I was wondering what was up with that.

    Meanwhile, I really love this upgrade. It is soooo much faster than my rev A 1.6/80G-- and no lines (I was so worried about that...).
     
  10. EspressoLove macrumors 6502

    EspressoLove

    Joined:
    Jun 29, 2007
    Location:
    Bay Area
    #10
    Try encoding a movie - good luck with having more than 1.5 hours on MBP ...

    MBA.B SL's consume less at idle, than P/T's in UMBP's, but when you load them max - you essentially have the same chip (same die, same 45nm tech, even same cache), and 30% speed difference (1.86 vs 2.53) doesn't translate into same power consumption difference ...
    Whatever thermal difference you have mostly helped by still lover voltages on SL's.
    That means MBA's consume comparable energy under load, so while having 2/3 of MBP's battery, they scale the runtime losses much faster.
     
  11. EnderTW macrumors 6502

    Joined:
    Jun 30, 2007
    #11
    Yeah with a bunch of stuff in background I get 2.5-3 hours at most. It's enough for me. I don't even carry the battery charger around. I just use it for notes on the go.

    As far as charging, it doesn't really bother me because it stays charged overnight. I am getting work to buy me a battery adapter, till then I'll start using it at work as well.

    I love this mba, got the rev b with the hd option. To me it's a little slow to open stuff but once it's open, the hard drive becomes negated. I don't notice any real slow downs. Then again I don't encode stuff or move huge stuff around on my hd.

    I still prefer windows on my desktops, but when it comes to laptops, OSX is just so productive. (Spaces, GESTURES!!, keyboard short cuts) this mba definitely feels like a fully fledged out keyboard.
     
  12. EspressoLove macrumors 6502

    EspressoLove

    Joined:
    Jun 29, 2007
    Location:
    Bay Area
    #12
    Yeah, I'm envious for you ;):cool::D
    Nearly bought 2.4MB, but I still cringe at how ugly it is [screen] when sitting next to MBA & MBP.

    It's beyond me why they have it in window display at [SF] Apple store side by side.
    MBA & 15"UMBP look surprisingly the same, and MB's plain ugly :mad:
     
  13. McGilli macrumors 6502

    Joined:
    Nov 11, 2008
    #13
    After 2.5 months with my rev b it takes 8.5 hours to charge from 0 to full.

    Same as it did in early november when i got it.
     
  14. EspressoLove macrumors 6502

    EspressoLove

    Joined:
    Jun 29, 2007
    Location:
    Bay Area
    #14
    Oh man, that sucks ...
    As they say - never buy rev.B products, or do they ;):D

    Did you try to talk to geniuses? (or Apple Suport 1-800 if you not close to store)

    You have to insist (that it's "not within the spec" ... which prob. not exitsts btw) - just yesterday I was literally schooling a genius ....
    He's nice guy and all, he even worked at Mac repairs shop before for few a years, but I still managed to impress him (he btw inspected my MBP i was carrying :rolleyes:).
    And the thing was - replace top case (with keyboard) on an out of warranty [white]MB - He said it's not possible (I have to pay) ...
    And it took quite a while, and my firm insistence that it's not the case.

    Be polite yet appeal to a common sense - not the specs - try to keep conversation within english - not techy ;)
     

Share This Page