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battery charger as a power supply

Discussion in 'Power Electronics' started by mrel, Jun 5, 2013.

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  1. mrel

    mrel

    103
    0
    Jul 2, 2008
    Hello

    Have a woodward Schumacher model ws1010 input 117 vac 2.0 amp output 6-12 vdc at 10 amp battery charger.

    Question is when i connect a 12 volts bulb to the battery charger the bulb will not light up ,but when connect the bulb to a 12 volts 500ma walmart power supply the bulb lights up or when try hookup a 12 volts power inverter rate at 400watts to the battery charger the power inverter will not working.

    Can someone explain why a battery charger with 10amp output Cannot power a light bulb or power a power inverter but can charger a 12volt car battery.

    mrel
     
  2. BobK

    BobK

    7,682
    1,688
    Jan 5, 2010
    A battery charger is not simply a voltage source. Most likely, it is looking for a battery to be connected.

    Bob
     
  3. david3264

    david3264

    14
    0
    Apr 6, 2013
    Some of the older battery charges you can use as a 12V source. My dad has one that's about 30 years old and it'll provide 12v to a light or anything you'd like. However, his newer one acts just like the one you're describing.
     
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