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Thread: i have a laptop with a dead battery can i run it from the battery

  1. #1
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    i have a laptop with a dead battery can i run it from the battery

    I have a hp pavilion and the battery is useless, can i splice a ac power supply to run off the car battery or do i need a convertor. and will leaving the car in hibernate for like 2 days drain the battery? thanks for the help

  2. #2
    My man uses Levitra. Peoples's Avatar
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    Quote Originally Posted by joshcxcb
    I have a hp pavilion and the battery is useless, can i splice a ac power supply to run off the car battery or do i need a convertor. and will leaving the car in hibernate for like 2 days drain the battery? thanks for the help
    How do you put a car in hibernate?
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    my bad... you know what i meant. .......the computer

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    My man uses Levitra. Peoples's Avatar
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    if your computer is in hibernate, you'll get very little drain, however USB device will still drain
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  5. #5
    My man uses Levitra. Peoples's Avatar
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    You can not splice an AC power chord....because its looking for an AC signal (unless your talking about after the brick). In this case you're laptop must be willing to accept a huge range of voltage , like between 8v-16v for it not to hurt anything. You're best bet is to find a cheap car adapter, and cut the wire to splice that in. You can probably find an HP one for < $35
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  6. #6
    Maximum Bitrate JimmyFitz's Avatar
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    I have a pavillion zt1135 that is over three years old. The original battery won't take a charge anymore. The pc ran fine from the ac adapter with the dead battery in it or even no battery. The AC power adapter it came with provides 19VDC @ 3950mA. You can run the laptop in your car using an inverter and the AC supply, or get a DC car power supply that is made to be compatible with your pc (about $100). A replacement battery cost me about $100 (last summer). your lappy model # and you can find sources and pricing for the parts you might need.
    ~Jimmy

  7. #7
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    i have one...its a fellowes model 98448 its a universal adapter
    ac adapter
    input 100-230 v 2a 50/60hz
    output 15-24v 65w max

    dc auto adapter
    input 11.75-16 vdc 8a max
    output 15-24v 70w max

  8. #8
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    Quote Originally Posted by Peoples
    if your computer is in hibernate, you'll get very little drain, however USB device will still drain
    I was under the impression that during hibernate... there is no drain at all.... since the PC is off... however during standby.. you will have a very small drain.. since the PC still needs to supply power to the memory.. and USB devices..
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    Constant Bitrate RawsonDR's Avatar
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    Quote Originally Posted by strohj
    I was under the impression that during hibernate... there is no drain at all.... since the PC is off... however during standby.. you will have a very small drain.. since the PC still needs to supply power to the memory.. and USB devices..
    Hibernate uses a lot less power than standy, for the reason you mentioned (powering memory). But it is still entirely possible that the computer provides +5vsb power during hibernate - this power is usually supplied even when the computer is off.

  10. #10
    Constant Bitrate Friedrice's Avatar
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    Hibernate saves the current computer state to the hdd. i've taken my battery out while computer was on hibernate (brick unplugged) and still came back w/o any probs.
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