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Old 06-08-2016, 06:38 AM   #12
AAXR8
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Thumbs up Re: Never Used a Jumpstarter Need some Help Please

Quote:
Originally Posted by Crazy Dazz View Post
At the risk of over-simplifying:
Your -ve lead form your charge-pack is a source of electrons. Those little blighters are trying to get home to the +ve lead.
What you want them to do is run through your engine, into the starter, do a few hundred laps around the motor, then make there way out via the solenoid and power-strap to the +ve terminal.
However some of them are bludgers, they will look for a short cut, and try ducking back through your battery, especially if its flat.

For low current applications, it doesn't much matter. Positive is positive, and earth is negative. But when you're sucking down hundreds of amps, it matters.

If you are ever stuck in a jumping situation where its still not quite enough. Connect your positive jumper cable directly to the solenoid, and the negative to the bellhousing. That will give you the best possible current to your starter.

The +ve terminal is almost as good for the +ve lead, because there is generally a big thick cable running directly to the solenoid. However the path from the -ve terminal is usually quite circuitous. Hence why you should try to shorten it by connecting direct to the engine.
I do understand what you mean!! I'm not a Auto Electrician so I just got a little worried when I heard it say connect to the motor because I was worried it would short out the Computer or do something Electronically bad! But you have taught me how it actually works!
(How A Jumpstarter pak, jump starting a motor ) So Thankyou!
With me I like to ask a few questions if i'm not sure!
I just thought we were acting as an aid for the battery to get the right Volts up to just make the car think the Battery is fully charged! So it will turn it over with the right CC amps! Thanks
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