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Thread: Inverter Powering Laptop

  1. #1
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    Inverter Powering Laptop

    Well i've herd alot about Inverters and how bad they are.
    Well i've got no knowledge of CarPuters hence why i'm here asking a few questions.

    In order to achieve what i want. I plan to use a simple laptop with an invertor

    I hope to simply power the laptop via the invertor whilst the car is running and let the laptop run from it's battery on standby (whilst the car is off) {I drive my car every day, very rare i drive it over 2 days. (and if this was the case i would shut the laptop down)}

    Anyways i was wondering if this idea would work? In order to start off i will just be using the laptop for a music/radio player. and when i become more brave i will expand.

    Since the laptop will be powered by two different ways i will insert the invertor when i get into the car and unplugged it whilst i leave (in order to ensure it's not going to drain my battery.

    Any suggestions or comments? (Please keep them very simple.) (I've though about using a acutal computer but i don't fancy wiring to the battery of a car as i will be getting a new one in the next month and my future use is much greater and requires the laptop/computer to always b on) and powering a computer is harder rather than just using a laptop with it's battery)

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  2. #2
    Neither darque nor pervert DarquePervert's Avatar
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    Bad idea. Inverters and battery chargers (such as that in your laptop) don't typically play nice together.
    You're better off getting an auto adapter for your laptop and plugging it into the cigarette lighter instead.
    Have you looked in the FAQ yet?
    How about the Wiki?



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  3. #3
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    Is this likely to do the same job only with less harm to the laptop?

    I think i was only going to use a inverter as i've never herd of a auto adapter, might look into them. How would i know which one to get?

  4. #4
    Neither darque nor pervert DarquePervert's Avatar
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    The inverter is likely to destroy batteries and possibly the battery charging system. I know n inverter killed both those on my old laptop.

    As far as an auto adapter, look for one specific to your make/model of laptop.
    Have you looked in the FAQ yet?
    How about the Wiki?



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  5. #5
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    What happens if i can't find a auto adapter for my make and model of laptop? Is their not a generic one or anything which would be acceptable incase?

  6. #6
    Constant Bitrate MindDrive's Avatar
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    u can use a quality inverter so long as it has a sine wave power signal... square wave inverters usually are what causes pc equipment to die out.... i used a 1400 watt inverter from walmart to power a full sized pc in my 91 gmc van for years without problems (the inverter was red and cost like 80 bucks) had enough power to turn on and run a 2000 lumen viewsonic projector with the computer running so 1400 watts would be slightly overkill but i know it works good

  7. #7
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    FYI i just picked up a 200watt inverter for 27 bucks at canadian tire and so far it works really nice. hasent tripped up yet and also has a digital readout for volts in, volts out, and how many watts the appliance is drawing. seems to be a nice little temp deal till i find out hot to hack this kingston power supply i have. but yeah i would go with dc-dc

  8. #8
    Neither darque nor pervert DarquePervert's Avatar
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    Pure Sine Wave inverters tend to be pricey, though.

    And I wouldn't worry about not finding an auto adapter for your laptop.
    Of course your worry about whether or not you will be ab le to find one indicates to me that you haven't even bothered to look.
    Have you looked in the FAQ yet?
    How about the Wiki?



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  9. #9
    Constant Bitrate MindDrive's Avatar
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    heres another idea for ya.... some laptops have a simple power connector.... look at the bottom of the laptop or the bottom of the power supply and see what the DC voltage is.... if it is 12VDC then you can ditch the AC portion of the power, get an adapter that fits the power plug on the laptop and use a DC~DC power supply like the M2 ATX... just a suggestion if you cant find a DC~DC power adapter specificly for your laptop...

    reason i say check the power requirements is that ive seen laptops use as high as 19VDC being supplied by the AC~DC power which the M2 ATX wont supply enough power to run the laptop AND charge the battery if being able to work at all

  10. #10
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    Cheers for the input DarquePervert & Mind Drive.

    I currently don't have the laptop. This is my plan of attack, and though i would discus it, I have order a screen, and once this comes i'm hopefully i will have a clear plan of attack. So i'm guessing the best way would be in this order
    if DC Voltage =12VDC then get a power supply and use that
    else use a Auto Adapter or a Pure Sine Wave Inverter.

    Right?
    Like i say no equpiment has been bought (aside from the screen) as i'm wondering if this is the right way to attack this to prevent hic-ups before i buy anything. so far it seems a good idea.

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