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11-17-2022, 06:45 PM | #1 |
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Basic Question-Jumper machine
When putting the jumper machine on to get rig started, is the red for to the ground and black go to the starter????? Haven't had to do this for awhile and forgot.
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11-17-2022, 06:47 PM | #2 |
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Re: Basic Question-Jumper machine
Yes. Red goes to ground. Positive ground.
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11-17-2022, 08:04 PM | #3 |
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Re: Basic Question-Jumper machine
Jumper machine?
Don't get me wrong...I like that term...I'm going "start" using it
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11-18-2022, 08:06 PM | #4 |
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Re: Basic Question-Jumper machine
They make a flashlight that will jump start your car. Its called Halo Flashlight Bolt.
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11-18-2022, 10:57 PM | #5 |
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Re: Basic Question-Jumper machine
It is best to remember to put the cables RED to +, & BLACK to --. Now there will be no room for error.
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11-19-2022, 10:05 AM | #6 |
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Re: Basic Question-Jumper machine
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11-19-2022, 10:12 AM | #7 |
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Re: Basic Question-Jumper machine
Correct, except if the battery is disconnected then its charger plus to battery plus and charger negative to battery negative.
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11-19-2022, 10:15 AM | #8 |
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Re: Basic Question-Jumper machine
A word of caution. 12 V to 12 V and 6 V to 6 V. When running with a sub standard battery, there is a chance of generator damage if it's still original. If it has an alternator then there may or may not be a heavy load on it. It's best to charge a weak battery than to risk running with it. If the battery is bad, replace it.
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11-19-2022, 10:30 AM | #9 | |
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Re: Basic Question-Jumper machine
Quote:
But, it was common for people in the past to rewire a Model A to negative ground, even if still 6 volts, just because they didn't know any better. It is also very common to switch to negative ground at the same time as converting to 12 volts. Your "red to ground" above would then be incorrect. So, not so simple answer: You really should look at the battery to confirm what you have before connecting a battery charger. If your "Jumper machine" is an external portable jumper battery (I don't know what a jumper machine is) then it really needs to match the voltage of the battery (6 volts or 12 volts) AND you need to get the ground correct also. Don't use a 12 volt jumper battery on a 6 volt car. Simple questions do not always have simple answers.
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11-19-2022, 10:49 AM | #10 |
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Re: Basic Question-Jumper machine
If you get the polarity wrong … you’ll know it immediately from the sparks!!!!! What is a jumper machine??????? A jumper box???? A 12volt jumper box will recharge a 6 volt battery! Connect it to the dead battery with lights off ( or you’ll burn out the light bulbs) and let the electrons flow from the jumper box into the dead 6 volt or 8 volt or 12 volt battery……then after awhile remove the jumper box, then you can try starting…..DO NOT try to start your car with the jumper box connected to the battery !!!!! Read the instructions for the jumper box
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11-19-2022, 10:58 AM | #11 |
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Re: Basic Question-Jumper machine
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11-19-2022, 11:28 AM | #12 |
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Re: Basic Question-Jumper machine
+ to +, - to - always
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11-19-2022, 11:42 AM | #13 |
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Re: Basic Question-Jumper machine
That's the way it goes, I'm positive.
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11-19-2022, 11:50 AM | #14 |
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Re: Basic Question-Jumper machine
Always positive to positive,and negative to negative.Doesn't matter if the battery is in the car or not,If you connect the positive jumper to the negative on the car,you stand a good chance of experiencing exploding battery syndrome.Big noise,and can be pretty spectacular.
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11-19-2022, 02:39 PM | #15 |
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Re: Basic Question-Jumper machine
Battery acid in the face is no fun!
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11-19-2022, 05:02 PM | #16 | |
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Re: Basic Question-Jumper machine
Quote:
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11-19-2022, 05:43 PM | #17 |
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Re: Basic Question-Jumper machine
It's positive to positive and negative to negative.In a previous post you stated,hook charger + to battery negative.That is NOT something you want to be doing.
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11-19-2022, 06:37 PM | #18 | |
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Re: Basic Question-Jumper machine
Quote:
You’re describing these two as if they’re different scenarios, but they’re actually the same. Unless the starter pedal is actively being held down, the battery is not in circuit with the starter. So if you connect another power source’s negative terminal to the post on the starter switch (or clip it to the battery cable), and that power source’s positive terminal to the chassis, the only thing in the circuit with that power source will be the battery. If that power source is putting out more voltage than the onboard battery, power will flow into the battery. If you then press the starter pedal, you’ll get the combined amperage of the two sources. |
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11-19-2022, 08:06 PM | #19 | |
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Re: Basic Question-Jumper machine
Quote:
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11-19-2022, 08:08 PM | #20 |
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Re: Basic Question-Jumper machine
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11-19-2022, 08:22 PM | #21 |
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Re: Basic Question-Jumper machine
Well, there is one case where you would want to hook plus to negative and that is if you are wiring the batteries in series. (Or battery and Jumper Machine in series.) This is sometimes needed if it is 40 below and you are trying to start your Diesel truck with 24 volts.
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11-19-2022, 08:23 PM | #22 |
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Re: Basic Question-Jumper machine
Change the +mark on the battery to a - mark on the battery. What am I missing?
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11-19-2022, 08:32 PM | #23 |
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Re: Basic Question-Jumper machine
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11-19-2022, 08:33 PM | #24 |
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Re: Basic Question-Jumper machine
Simple - paint the - on the battery to + and the + to -. Is a painted mark on the battery dangerous? If this is all wrong, how do I hook up a charger with a red wire/clamp and black wire/clamp, battery installed and cable attached to starter?
Last edited by aermotor; 11-19-2022 at 09:01 PM. |
11-19-2022, 08:57 PM | #25 |
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Re: Basic Question-Jumper machine
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11-19-2022, 09:13 PM | #26 |
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Re: Basic Question-Jumper machine
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11-19-2022, 09:24 PM | #27 |
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Re: Basic Question-Jumper machine
You must have missed post #5. The trouble with your post is that it is wrong and dangerous. You can put any color wire on your battery but that doesn't mean you can hook up the charger based on the color of the battery cables. red charger/jumper always goes to + on the battery. A spark can blow up the battery and you will be sorry it happened.
Last edited by J Franklin; 11-19-2022 at 09:34 PM. |
11-19-2022, 09:33 PM | #28 | |
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Re: Basic Question-Jumper machine
Quote:
Make you a deal. I will hook up my charger the way I want and you do the same. BTW with two cars I still have a garage, no blown up batteries and acid is still all in the batteries. Last edited by aermotor; 11-19-2022 at 09:41 PM. |
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11-19-2022, 09:50 PM | #29 |
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Re: Basic Question-Jumper machine
My post is not just to argue, it is to inform new people to + ground vehicles how to hook up a battery charger so it is done correctly. Any way it is achieved is fine with me.
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11-20-2022, 10:04 AM | #30 | |
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Re: Basic Question-Jumper machine
Quote:
Fred K, this wasn’t a dig at you as jumper machine makes perfect sense to me. |
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