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  1. Join Date
    Nov 2009
    Posts
    3,522
    #10
    Quote Originally Posted by uls View Post
    sariling gawa na jumper cable

    pang start ng 24V trucks and heavy machines

    di ko na kailangan problemahin ang amp rating amp rating na yan

    that's welding cable

    more than enough for any starter we got here
    Anlake! Yung DIY ko from inverter welder kaya gauge 3 lang, pero palagay ko kaya din magstart ng 24V neto. Pwede din double purpose, tow cable..haha

    Quote Originally Posted by JohnM View Post
    Parang gets ko na kung bakit not recommended ang negative to negative terminal. May napanood ako sa Discovery Turbo (The Garage). Pekeng M3 ginagawa nila and namatayan ng battery sa shop kaya ni-charge muna. After a few minutes charging nagstart na so tinanggal na ng mekaniko ang clips ng charger. Biglang BOOM! Yun pala di nya na-unplug muna ang charger bago tinanggal ang clamps. Nagspark pagtanggal and nag-ignite ang gases sa loob ng batt. Takbo agad sa CR ang mekaniko para maligo.

    So if nasa block or body ang ground connection mo pagtanggal less chances mag-ignite dahil malayo sa battery. Once natanggal na yun wala nang circuit so safe na tanggalin ang iba.
    Dapat well ventilated. Hydrogen buildup nangyari.

    Quote Originally Posted by [archie] View Post
    edit: sa jumper cables, Ewan ko ba kung bakit kailangan alalahanin amp rating, basta gumagana ok na yan. kahit kasing kapal pa ng braso, 12v to 12v or 24v to 24v, yan pa rin ang dadaloy na voltage.
    Dapat consider wire gauge, ang analogy ng wire is parang tubo ng tubig. The larger, the more current could pass. Kung malaki ang amp draw ng starter at solenoid, iinit lang ang wire (electron congestion).

    As a general rule based fron nabasa ko - gauge 6 for small cars, extending the length increases the resistance so u have to increase the gauge, the bigger/shorter the better.
    Last edited by 12vdc; July 15th, 2013 at 01:40 PM.

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Jumper cable amp rating