battery and usb broadband modem

Discussion in 'MacBook Pro' started by mansanas, Jun 8, 2010.

  1. mansanas macrumors regular

    Joined:
    Feb 5, 2010
    #1
    got my mbp 15 i5 last week, ive been testing my battery, already recalibrated and all that.. i get 8+ hours on full charge on idle.. pretty average on normal use, around 5-6 hours..
    anyways so while i was testing my battery, i decided to unplug my usb broadband modem to see how much battery it's draining from my laptop.
    but to my surprise my battery life went down from approximately 3 hours left, to 2 and half ! i even waited 5 minutes so it can properly calculate it, but it didnt increase.

    so my question is wuzzup widat?! shouldnt it be the other way around?

    i was planning on canceling my wireless broadband contract when it expires and just wirelessly tether my newly jailbroken iphone via mywi for internet access, but its seems like wifi is a minus on the battery, but usb modems are actually a plus.

    any thoughts? anyone else experience this?
     
  2. mansanas thread starter macrumors regular

    Joined:
    Feb 5, 2010
    #2
    anyone? ive tried it a few more times and its pretty consistent, like 100%.

    also, is it normal for the battery life to drop from 7 hours left from idle, to 5 hours when a webpage loads?
     

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