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#11

01-27-2008, 06:08 PM

Jazz

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I always thought if you hook positive on one battery and negative on the other it would be 24v. But at the same time we are only 12v systems. Thanks for clearing this up for me.

I think

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#12

01-27-2008, 06:12 PM

DangerousDuramax

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Quote:

Originally Posted by h8pvmnt

Hooking 2 batteries in series you connect the neg - form battery A to the pos + of battery B with the neg - from B going to ground & pos + from A going to the pos + cable. That doubles the voltage but retains the same amperage.

I have considered running 4 6v batteries in my truck for greater storage capacity.

To answer the ? about the jumper cables: No
Both batteries are connected to the same ground so it doesn't really matter as long as you go neg- on one & pos+ on the other. All that hooking to the different batteries does is distribute the load so your not sucking off one battery.

Exactly, and for you DMax guys there is no primary or secondary battery. They are both tied to the same junction point.

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#13

01-28-2008, 01:44 AM

94cummins12v

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a guy i just wired a trailer for did that he tried jumpstarting a vehicle with a trailer on it, he was trowing 24volts at it and fried the trailer wiring, it makes sence to do that to another 24v starting system like diesels but not 12volts.

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#14

01-28-2008, 06:32 AM

Jazz

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See here we go again. I thought our systems were 12v but with 2 batteries for the extra amps. Right? I have jump started people before with my truck with no problems but now I won't do anymore because I guess I don't totally understand our system

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#15

01-28-2008, 06:50 AM

Uncle Bubba

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Quote:

Originally Posted by Jazz

What's the problem jazz, it's clear as a cess pool of water isn't it. If what you been doin works just keep on doin it to it. You can still hook up to a single battery and charge away or you can hook to the Pos of one and Neg of the other and charge away. Just be sure to pull the cables as soon as possible after the dead vehicle is running. This is the summary of what's been said here.

By George I think I've got it, maybe, I hope, Kinda anyway.

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#16

01-28-2008, 07:53 AM

Cummins Express

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Rest easy guys, there is no way to throw 24 at someone if the batteries are tied in parellel, such as ours and every other dual battery light truck out there. The battery tie just won't allow 24 volts because they are tied neg to neg and pos to pos. Your cable placement doesn't matter providing you hook up a pos and a neg jumper cable to pos and neg lug in any combination. Like uncle said, do it how you feel comfortable, just don't let the vehicles run tied together.

Chris

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#17

01-28-2008, 08:08 AM

h8pvmnt

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Quote:

Originally Posted by 94cummins12v

Running 24 volts shouldn't damage any wiring. It would damage the bulbs & that is not a given, I have seen 12v bulbs run for a couple of days in a 24v system. Amperage is what determins the size of the wire, not voltage.

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