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9V power inverter?

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  • 26-07-2005 10:10pm
    #1
    68 lost souls
    Registered Users Posts: 3,985 ✭✭✭


    Hey,

    Just wondering if its possable too get a power inverter that can power mains powered things, that works off say 9v batteries or D size batteries, basicly any one that runs off the run of the mill batteries from the local spar rather than from a car battery?

    Cheers


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    #2
    mp3guy
    Registered Users Posts: 3,965 ✭✭✭mp3guy


    um, i not sure, but i've never heard of anyone powering a desktop rig off a couple of D batteries...


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    #3
    68 lost souls
    Registered Users Posts: 3,985 ✭✭✭68 lost souls


    Well the thing is its not actually for powering a computer I just thought this would be the best place to ask. Its for powering a guitar amp.


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    #4
    wavin
    Closed Accounts Posts: 213 ✭✭wavin


    68 lost souls wrote:
    Well the thing is its not actually for powering a computer I just thought this would be the best place to ask. Its for powering a guitar amp.

    you can alright, although dont know how long a battery would last with a small battery.http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&category=15329&item=7989433669&rd=1 is on ebay, i think would do the job


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    #5
    68 lost souls
    Registered Users Posts: 3,985 ✭✭✭68 lost souls


    Thats not exactly what I was looking for that only works off 12v, you need to plug it into a car cigarette lighter Im looking for one you put batteries into i.e. AA or D or 9v etc.


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    #6
    kdouglas
    Registered Users Posts: 6,414 ✭✭✭kdouglas


    would it not be easier to just buy a battery powered guitar amp? like this

    guitar amps would run at a relatively low voltage, like 9v or 12v anyway, so converting to 240v ac and then back to 12v dc would result in considerable power loss and probably drain the batteries within a couple of minutes.


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    #7
    po0k
    Registered Users Posts: 15,815 ✭✭✭✭po0k


    68 Lost Souls

    What exactly are you trying to do?
    Generating a 220V AC voltage from a low-voltage DC supply using home-built bits is dodgey enough, and the output quality is proportional to the cost of components (generally).

    There's a reason APC can charge so much for their UPSes.


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    #8
    Gone West
    Registered Users Posts: 6,374 ✭✭✭Gone West


    There are 12v AC inverters that can give you 3Amps from a car battery.
    A bunch of regular D batteries(a thousand) will never be able to power mains AC. Both because you willl have to convert it to AC and that the stepping up is way too big.
    Crappy dry batteries will never do the job. However, perhaps a small motorbike one would work, as these are real lead acid batteries.

    However, what you are looking for is easily available online
    http://cgi.ebay.com/FENDER-AMP-CAN-GUITAR-AMP-PORTABLE-LOUD-RECHARGABLE_W0QQitemZ7341058996QQcategoryZ38074QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
    It will be much easier, safer, and most likely cheaper to buy on eof these..


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    #9
    68 lost souls
    Registered Users Posts: 3,985 ✭✭✭68 lost souls


    I was just trying to see if there was a way to power the amp I already had using batteries as it is pretty loud and I love it it would be a great amp to busk with. Ill probably go out and buy one of these now instead.

    http://www.rolandus.com/products/details.asp?catid=7&subcatid=32&prodid=Micro+Cube

    Thanks for the help.


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