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Discussion in 'Truck & Equipment Repair' started by kc2006, Dec 7, 2007.

  1. kc2006

    kc2006 Senior Member
    Messages: 983

    So I was thinking about my charging system the other day while plowing. I hate seeing the drop in volts when I'm using the plow, i have a diesel so I have dual batteries and a good alt, all of which is new. It does fine but I'm picky and don't like the drop.

    So my thought was, what if I run a couple compacitors? Like for audio equipment. If you run a compacitor off each battery, and use them as the power supply for the plow, would it work? I can get good compacitors for 14 dollars a piece, a friend owns an audio equip store and thats his cost, they're good quality too amazingly. So it would be cheaper then adding more batteries, plus lighter. What thinks everyone? Heck I can buy 4 compacitors for way less than one battery.

    My only thing is, I don't know how fast a compacitor can discharge and recharge. I know with audio stuff I've had them drop down to 10.9ish and about 2-3 seconds later it jumps back up to 13.6 or where ever. Just an idea and looking for feedback.
  2. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,511

    Capasiters charge and discharge Fast however you woold need a capasiter 1/4 the size of your truck to do what you want! If the volt meater upsets you that much... Put some tape over it.
  3. DSLL

    DSLL Senior Member
    Messages: 136

    Yea the cap will work for a second but then they will have to be recharged, resulting in a drop in voltage.
  4. murphyslaw

    murphyslaw Senior Member
    Messages: 443

    caps are designed to give up there power in milliseconds. not viable for our use.
  5. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    Like he said you would need one the size of your truck. Your going to have a voltage drop anytime you have a large amp draw like a pump. You could add more batteries and 00 welding cable connecting them and still have the lights dim. As long as the volt gage goes back up your on the + side of the equation.
  6. tkrepairs

    tkrepairs Senior Member
    from maine
    Messages: 186

    the capacitor would be a good idea, however an amplifier for a car, even a very very large one, uses a lot less power than the plow requires.
  7. kc2006

    kc2006 Senior Member
    Messages: 983

    thanks for the replys. Just something I was thinking about while out plowing. I may have to put the tape over the gauge :D