Should I be concerned about my battery?

Discussion in 'MacBook Pro' started by TsuaSai, Feb 18, 2010.

  1. TsuaSai macrumors 6502

    Joined:
    Jan 9, 2006
    Location:
    TX
    #1
    I noticed the other day my battery didn't seem to last as long as I thought it used to. So I checked it with coconut battery and it was at 95% it 9 months old. I wasn't sure if this was something I should send it in over or not? I know it won't last forever but I was thinking it wouldn't come down 5% in 9 months. It was at 100% when I got it.

    Thanks
     
  2. paddyhazard macrumors regular

    Joined:
    Jan 27, 2010
    Location:
    London
    #2
    Battery stats are never exact, it's impossible to know exactly how healthy your battery is. That sais, 95% after 9 months is good. iStat is saying my MBP is at 95% after about 4 months and 75 cycles. I think apple warranty batteries if they go down to below 80% within the first year i think but i'm sure someone on here knows exactly.

    Also i'm guessing they decay inversely proportional to time so the first 5% takes so long and it takes longer and longer for it to loose 5% of it's health each time.
     
  3. TsuaSai thread starter macrumors 6502

    Joined:
    Jan 9, 2006
    Location:
    TX
    #3
    That sounds good and about what I expected to hear. I thought about calling just to talk to someone but with a two year old I know that it would be a pain so thought I would just ask here.

    Thanks
     

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