Portable battery jump starting. Hook ups and 12 or 24 volt

Discussion in 'Experienced Truckers' Advice' started by Freightshakersfolife, Nov 16, 2022.

  1. Freightshakersfolife

    Freightshakersfolife Bobtail Member

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    Nov 16, 2022
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    Got caught too many winters where truck wouldn't start and needed a jump.
    Last time road call guy said he used 24 volt jump to my truck.

    I got one of these portable battery jumpers.
    Can select between 12 or 24 volt.

    What do you suggest?
    Also where would be the best hook up spot on a Freightliner Cascadia.

    Thank you

    20221116_172301.jpg
     
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  3. AModelCat

    AModelCat Road Train Member

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    Lucky he didn't fry everything on your truck. Very dumb to try and boost a 12 volt system with 24 volts.
     
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  4. snowwy

    snowwy Road Train Member

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    Unless you're jumping cat machinery.

    12v is all you need.

    Now I don't know if all cat is 24 but one skid steer at that time was.

    And that's a supposedly as I just heard that it had to be jumped.
     
  5. Freightshakersfolife

    Freightshakersfolife Bobtail Member

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    Nov 16, 2022
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    I read there could be danger using 24 volt.
    Road call guy said he does it all the time on semi trucks, "gives it an extra boost".
     
  6. Siinman

    Siinman Road Train Member

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    Fry the system. Guess it is not his system, so who cares.
    12V works no problem
     
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  7. Tumbleweed TowMan

    Tumbleweed TowMan Medium Load Member

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    That man is an idiot.

    It's not about voltage that the power comes from, that must remain equal on both ends, it's about the sustained amperage available.

    Would you plug a 110v drill into a 220v outlet to get more power?
     
  8. MacLean

    MacLean Road Train Member

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    ECU’s are cheap, give er.
     
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  9. Moosetek13

    Moosetek13 Road Train Member

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    Pretty sure the Cascadia has remote terminals for jump starting. That would be the best spot.
    But don't use 24V mode on a 12V system. That's probably a good way to fry your computer.

    I have a NOCO battery jumper for my car. Those lithium-ion batteries are wonderful.
    Hook it up, and start it up. Just that quick. No waiting 15 minutes with a truck hooked up with jumper cables.
     
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  10. skallagrime

    skallagrime Road Train Member

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    Installing a diesel fired coolant heater soon, ordered the 3250 amp noco when i ordered the heater to cover my keister in case it draws down too low
     
    Siinman Thanks this.
  11. DRTDEVL

    DRTDEVL Road Train Member

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    If you have jumper terminals on the frame rail, that's where you hook up. If not, just hook the red to the terminal with the large red sheathed cable coming off towards the truck and the black to the opposing terminal with a black sheathed cable leading toward the truck.

    I bought this one recently: 1700 Peak Amp Portable Jump Starter and Power Pack with 250 PSI Air Compressor It was $10 cheaper when I bought it, and I had a 25% off no restrictions on one item coupon, so the total was only $142.49 + tax. If you get one of those coupons, this is a great item on which to use it. It will definitely jump the APU immediately, and should be able to fire up the big engine as long as its not *too* cold outside.
     
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