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Thread: Inverter problem

  1. #1
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    Unhappy Inverter problem

    Hi

    I'm having problems getting my laptop to run on a power inverter. The laptop is a Clevo D510e and I'm using a Skytronic 150watt unit. The unit buzzes telling me there's a fault somewhere. This has happen on several different units of different wattage etc.

    Does anyone know what's wrong?

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
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    You've got a couple of potential problems. The buzzing sound inidicates a fault, but you know that already. The question is... Why?

    1) Your 150w inverter is likely not able to supply enough power for the laptop. It's a pretty high-end laptop. For a laptop installation, you're a lot better off with a DC-DC "car adapter" for the laptop for a lot of reasons discussed elsewhere on this forum.

    2) Your inverter is connected to a cigarette lighter/power port in your vehicle. More often than not, these auxilliary power ports aren't able to supply the amount of power due to the wiring for that power port. I ran into this problem when I was first putting my setup in my truck. When I powered the system throught eh cigarette lighter, it simply would not work. When I wired it directly to the battery, the problem went away.

    3) Your inverter could be faulty or just a piece of crap. If this is the problem, you have two options: replace the inverter or get a DC-DC adapter for your laptop. I recommend the latter.
    Have you looked in the FAQ yet?
    How about the Wiki?



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  3. #3
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    Thanks for the help, I've tried to get hold of a DC to DC adapter, but I can't find one for sale here in the UK. I have seen a unit online in the US, but they won't ship to Europe for some reason! I was told I would have to use an inverter instead.

    Would a 300 wtt unit help with the power or would it still be the same story?

  4. #4
    MySQL Error MatrixPC's Avatar
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    Quote Originally Posted by serendippy View Post

    Would a 300 wtt unit help with the power or would it still be the same story?
    If you use that 300W unit and connect to a cig lighter, it will be the same. Take a look at the cigarette fuse to see how many amp on that line. At most is 15A (normally 10A).
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  5. #5
    Newbie DigitalDub's Avatar
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    DC-DC power for laptop

    Hi. Don't know if this is of use, but I'm considering getting this for my laptop.

    http://linitx.com/product_info.php?products_id=809

    I'm no expert on these things, so don't know if it is powerful enough or even regulated. I emailed manufacturer (Kerio) a couple of times asking, but got no reply. I know my laptop is on the supported list, but don't know if the supply is regulated.

    I've bought a few things from LinITX here in the UK and they are good.

    D.

  6. #6
    Neither darque nor pervert DarquePervert's Avatar
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    Quote Originally Posted by DigitalDub View Post
    Hi. Don't know if this is of use, but I'm considering getting this for my laptop.

    http://linitx.com/product_info.php?products_id=809

    I'm no expert on these things, so don't know if it is powerful enough or even regulated. I emailed manufacturer (Kerio) a couple of times asking, but got no reply. I know my laptop is on the supported list, but don't know if the supply is regulated.

    I've bought a few things from LinITX here in the UK and they are good.

    D.
    Yes, it's regulated.
    It wouldn't be able to power your laptop from the car's cigarette lighter port properly if it wasn't (since the power from that port is unregulated).
    Have you looked in the FAQ yet?
    How about the Wiki?



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  7. #7
    Newbie DigitalDub's Avatar
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    Thanks DP. Told you I'm not an expert. That's the last AC bit nailed then. Finally I can stop worrying about getting electrocuted. Just fire from bad wiring and questionable 1968 door seals instead.

    D.

  8. #8
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    Hi

    I get a buzzing noise without the fault LED lighting. The battery is pushing around 18v with or without the engine running. It powers my Laptop but the buzzing must be telling me something???

    I tried attaching direct to the battery, still same and making a better earth connection, no change??!?

    I don't know anything about electrics especially in a car! Has anybody got an idea (apart from throw the thing out!!)

  9. #9
    Newbie mountainmachine's Avatar
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    serendippy where abouts in the UK you from?
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