battery and usb broadband modem

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

  1. mansanas macrumors regular

    Feb 5, 2010
    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

    Feb 5, 2010
    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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