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mansanas

macrumors regular
Original poster
Feb 5, 2010
160
0
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?
 
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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