Jumpstarting with a CV welder?
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  1. #1
    Join Date
    Feb 2019
    Posts
    59

    Jumpstarting with a CV welder?

    I had a thought. Can you dial your CV generator to ~12v, throw your ground on one battery terminal and your stinger on the other, will it effectively jumpstart a piece of equipment? Or is this just a creative way of exploding a battery in your face?
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  2. #2
    Join Date
    Dec 2015
    Location
    Western New York State, USA
    Posts
    1,877

    Re: Jumpstarting with a CV welder?

    Quote Originally Posted by Q-Fab View Post
    I had a thought. Can you dial your CV generator to ~12v, throw your ground on one battery terminal and your stinger on the other, will it effectively jumpstart a piece of equipment? Or is this just a creative way of exploding a battery in your face?
    .
    i believe car battery voltage is between 12 and 14 volts. i have charged a dead battery at 14 volts and after 5 or 10 minutes there was enough in battery to start the car. got to watch welding machine. if battery is accepting hundreds of amps you can overheat welding machine. i believe if that happens you lower voltage to 13.5 volts or low enough volts the amp draw is not so much.
    .
    either way got to be careful. quite easy to damage something. i would monitor things. not leave it alone for any length of time. car batteries can overheat too. not good if battery exploded spraying acid all over the place.
    .
    a battery charger is meant to do automatically without damaging stuff. a welding machine does not have the safety devices built in for battery charging like a normal battery charger

  3. #3
    Join Date
    Nov 2012
    Location
    new york city
    Posts
    6,521

    Re: Jumpstarting with a CV welder?

    i'm not sure if it's cv or cc but iirc seeing someone at the fab shop start a truck with a dead battery using the electrode and ground clamp from a running sa200 mounted in back.
    i.u.o.e. # 15
    queens, ny and sunny fla

  4. #4
    Join Date
    Feb 2012
    Posts
    3,868

    Re: Jumpstarting with a CV welder?

    Quote Originally Posted by docwelder View Post
    i'm not sure if it's cv or cc but iirc seeing someone at the fab shop start a truck with a dead battery using the electrode and ground clamp from a running sa200 mounted in back.
    Good point doc, on cc the open circuit voltage at low end is around 40 volts for sa200 If I remember but, closed circuit should drop enuf to start a truck. I would stand back tho.

    Iirc, a member here was asked to jump start a dead locomotive but he declined because he only had a Miller.

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