MacBook Pro on 15-Hour Road Trip

Discussion in 'MacBook Pro' started by TheMotif, Jul 22, 2007.

  1. TheMotif macrumors member

    Joined:
    Feb 7, 2007
    #1
    Next week, I'll be taking my MacBook Pro on a distant vacation to the Outer Banks, NC. I just wanted to know how long my battery would last just off of watching DVD rips, which is what I'll mainly be doing. I'm not exactly sold on a seventy-dollar car adapter, either.
     
  2. mongoose8p macrumors regular

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    May 15, 2007
    Location:
    Chicago
  3. TheMotif thread starter macrumors member

    Joined:
    Feb 7, 2007
    #3
    Alright, thanks.
     
  4. iBookG4user macrumors 604

    iBookG4user

    Joined:
    Jun 27, 2006
    Location:
    Seattle, WA
    #4
    You'll probably get a good 3 or 3 and a half hours. But don't watch movies and drive at the same time, that's not a good combo. ;)

    EDIT:
    Too late. Note to self: type actual post first, then edit with witty comment.
     
  5. KristieMac macrumors 6502a

    KristieMac

    Joined:
    Jun 3, 2007
    Location:
    Harrisburg, PA
    #5
    I didn't get a close look at it, but wal mart had a portable laptop car adapter for $30.

    I can't definitively answer your battery question, but I'd think 3-4 hours. Maybe.
     
  6. squeeks macrumors 68040

    squeeks

    Joined:
    Jun 19, 2007
    Location:
    Florida
    #6
    its not going to last 15 hours :D

    id say 2:30 depending on screen brightness, buy the car adapter, or a cheap power inverter, heck the thing only draws 85 watts get a 300watt inverter from walmart
     
  7. Gymnut macrumors 68000

    Gymnut

    Joined:
    Apr 18, 2003
    #7
    Or you could buy another battery although together they won't cover the entire 15 hour trip.
     
  8. TheMotif thread starter macrumors member

    Joined:
    Feb 7, 2007
    #8
    Yeah, I read that the Kensington adapter isn't powerful enough. Does anyone have a link to a decent car adapter available through Walmart?

    Isn't this a worthy buy? It doesn't specify how many watts, though, on the webpage.
     
  9. squeeks macrumors 68040

    squeeks

    Joined:
    Jun 19, 2007
    Location:
    Florida
    #9
    looks like 180watts max, meaning peak draw, the constant draw needs to be above 100 where as that is prolly only about 75, it should say on the packageing, you dont want something thats going to be peaked out the whole time, thats not good. Id try to find a 300watt max one if i were you.
     
  10. TheMotif thread starter macrumors member

    Joined:
    Feb 7, 2007
    #10
    It seems there's a Xantrax 175-Watt Power Inverter at Radio Shack for $30.00. The MacBook Pro runs at 85 watts, right?
     
  11. diamond3 macrumors 6502a

    Joined:
    Oct 6, 2005
    #11
    http://www.amazon.com/Black-Decker-200-Watt-Inverter-VEC1045BD/dp/B000EJQIX0/ref=pd_bbs_sr_1/002-3681152-4099245?ie=UTF8&s=hi&qid=1185159618&sr=8-1
    Just get something like this.

    17.99 with free shipping
    Amazon.com Product Description
    The Black & Decker 200-Watt inverter converts your vehicle's 12-volt DC power into 115 AC power for your house. It comes with protection against high and low voltage shocks and an alarm for when your battery gets low. An automatic shutdown function keeps the battery from draining completely. A turbo cooling fan prevents overheating, and this inverter includes a cable set, battery clips, a DC accessory plug, and a 12-volt DC accessory outlet. It delivers up to 200 watts of continuous power with a maximum surge capacity of 400 watts. Black & Decker backs this inverter with a 2-year warranty.
     
  12. TheMotif thread starter macrumors member

    Joined:
    Feb 7, 2007
    #12
    Okay, thanks.
     
  13. diamond3 macrumors 6502a

    Joined:
    Oct 6, 2005
    #13
    One thing though is that a review said to get the 200 watts of continuous power it has to be connected to the battery. However other reviews say it works great for laptops etc. I have no experience with this product, it just seems like a good option.
     
  14. MaddieBrad macrumors regular

    MaddieBrad

    Joined:
    Apr 8, 2007
    Location:
    New York City
    #14
    Dood... Just go to radio shack and buy a power inverter. Just make sure it is up to snuff with the wattage of your adapter. i.e. if your MBP adapter is 85W make sure the inverter is rated to 85W. The great thing about an inverter is you can use it for anything... Mobile phones, Laptops, TV's, etc etc etc.

    This is the one I use.

    http://www.radioshack.com/product/i...origkw=inverter&kw=inverter&parentPage=search

    B
     
  15. KD7IWP macrumors 6502a

    KD7IWP

    Joined:
    Mar 8, 2004
    Location:
    American living in Canada
    #15
    I bought some $12 thing at Costco that does 100watts and it has worked just fine for my MBP. Like it was said before, it only draws 85 watts, so you're fine.
     

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