Coconut Battery 15" mbp: 65 maH only?

Discussion in 'MacBook Pro' started by unagimiyagi, Jun 13, 2009.

  1. unagimiyagi macrumors 6502a

    Joined:
    Jun 9, 2009
    #1
    I had been complaining about my 15" new unibody mbp and its poor battery life. I see things praising the battery and it's not that good at all. I can easily drain the thing. Coconut battery says that my capacity is 65 maH. Is this correct? I know that this is not the same thing as 73 wH, but I don't know how to convert maH to watt hours. Can someone take me through how to know if I have a defective battery before taking it into Apple? I don't think that they really even known how to figure that out anyway.

    I have calibrated and also reset the pram.

    If just surfing at full brightness, wifi on, bluetooth off, how long should the battery last? 3.5 hours? That's what I got, but I figure that it should be longer than that.
     
  2. Roba macrumors 6502

    Joined:
    Mar 18, 2006
    #2
    Example

    6500 mah x 11.1 (voltage example) = 72.1wh
    etc

    Do you know what the voltage of your battery is?

    Are you using better battery life and did you turn the backlight keyboard of.
     

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