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  1. #1
    Join Date
    Apr 2013
    Location
    metro Detroit
    Posts
    70

    Default jump starting with a bobcat

    Let me start by saying I don't plan on doing this, but the thawing pipe conversation got me thinking.
    If you were out on a job site and everyone else has left and you find out your trucks battery is dead, could you use your welding leads to jump start the truck. Obviously you would need to have it in D/C and get the lead right.
    What got me thinking of this was it was -12*f and some of the semi's at work would not start. So I took my bobcat 250 out there and ran a battery charger and my torpedo heater off of it. I but plywood around the front of the truck to hold in the heat and let it warm everything up.
    But I still had to use my truck to help the batteries by jumping it too. I know it would of started eventually but I had 3 more trucks to start

  2. #2
    Join Date
    Nov 2003
    Posts
    2,983

    Default

    Probably not suggested practice... but..

    have many times in the past done winter jump starting with a Trailblazer set to CV at 14VDC...

    never had any problems...
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
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  3. #3
    Join Date
    May 2011
    Location
    Bossier Parish La.
    Posts
    539

    Default

    When I was a teenager in high school, a friend of mine got a welder to jump start his 67 Malibu with a Lincoln SA 200. The guy hooked his ground cable to the bumper, had him hold the ignition switch in the start position, He put a rod in the stinger and tapped the positive battery post. The engine fired right up. This car was already warmed up and didn't need to be turned over several times to start like a cold diesel would need, so I don't know if it would work in your case or not. Might melt down the battery post or blow up the battery if you tried it. I wouldn't try it myself.

  4. #4
    Join Date
    Oct 2006
    Location
    Illinois
    Posts
    594

    Default

    I would run the Bobcat and use jumper cables from battery to battery.

  5. #5
    Join Date
    Nov 2003
    Posts
    2,983

    Default

    Quote Originally Posted by BD1 View Post
    I would run the Bobcat and use jumper cables from battery to battery.
    I would not... that will likely blow the regulator on the Bobcat engine when the other vehicle starts and backfeeds the Bobcat... have seen it several times...do so at your own peril..

    that little 15 amp monolithic voltage regulator on those engines pops real easy...

    Last edited by H80N; 02-23-2014 at 06:24 PM.
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus Mills, Lathes & a Rat Tail File..

  6. #6
    Join Date
    May 2011
    Location
    Bossier Parish La.
    Posts
    539

    Default

    Quote Originally Posted by BD1 View Post
    I would run the Bobcat and use jumper cables from battery to battery.
    I don't think that would work with those semi's he was trying to start, as they run a 24 volt system as opposed to the Bob Cat's 12 volt. Not gonna happen.

  7. #7
    Join Date
    Oct 2004
    Location
    Edmonton, Alberta
    Posts
    7,447

    Default

    Yes, you can jump start most anything, just turn your local control down, a volt meter would be handy! however don't jumpstart anything Miller, or Boards will blow.

  8. #8
    Join Date
    Sep 2005
    Location
    northern NJ
    Posts
    1,821

    Default

    Quote Originally Posted by H80N View Post
    I would not... that will likely blow the regulator on the Bobcat engine when the other vehicle starts and backfeeds the Bobcat... have seen it several times...do so at your own peril..

    that little 15 amp monolithic voltage regulator on those engines pops real easy...

    I found this out when I let a customer plug in his cordless battery charger to my TB. I didn't even think to put it in run position first. So he plugged it in at idle & then I flipped the switch to rabbit. Several hours later my TB starts running crappy & when checked the battery was drained & not charging. Replaced the VR & all is well. Coincidence? Who knows.
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  9. #9
    Join Date
    Nov 2003
    Posts
    2,983

    Default

    Quote Originally Posted by MMW View Post
    I found this out when I let a customer plug in his cordless battery charger to my TB. I didn't even think to put it in run position first. So he plugged it in at idle & then I flipped the switch to rabbit. Several hours later my TB starts running crappy & when checked the battery was drained & not charging. Replaced the VR & all is well. Coincidence? Who knows.
    At $40 a pop... those regulators could get expensive if you forget too many times...

    I think most small engine shops keep a couple gross of them in stock for when suburbanites jump start their flat garden tractor batteries in the spring after they have been dormant all winter...
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus Mills, Lathes & a Rat Tail File..

  10. #10
    Join Date
    Apr 2013
    Location
    metro Detroit
    Posts
    70

    Default

    The semi's at work are 12v. I don't plan on doing it, I was just thinking. I do carry a small battery charger in my truck box (just in case)

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