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proper installation

A

Anonymous-0

Well-known Member
If I take 2-12 volt batteries. - to ground, + on the 1st battery and - on the next battery and + to the starter. Is that 12 volt or 24 volt hook up??
 
Yeppers, that gives you 24 volts POSITIVE GROUND. Deere used a 24 volt series system butttttttttt only the starter and genny were 2 wire 24 volt isolated from frame ground. Where the 2 joined in the middle tie point was tied to frame ground, so you had two 12 volt A & B sources, one Pos Ground other Neg ground to run 12 volt lighting circuits. Thats NOT what you described, however.

John T
 
To help you determine what is "proper installation" help us out a bit.
What is this in?
What are you trying to get - 24 volts or 12 volts with increased capactiy?
Positive ground or Negative ground?
OEM confiuration or something "home made"?
Tom
 
Thanks, A friend of mine was hooking batteries in an old truck. It wouldn't turn over very well and wanted more CCA. He thought hoking up 2 batteries that way would give him 12 volts with more cranking capacity. I told him he was wrong. I'll pass the word. Thanks,guys!!!
 
I have started many a vehicle this way. Two batteries in series both with bad cells will start a car due to the 18 volts requiring much less amperage. Is it a good idea? Nope. On a modern car? Absolutely not. Will it get a you out of a sticky situation? Maybe.

My connection was neg cable to neg terminal of battery 1, pos terminal of battery 1 to neg terminal battery two, pos terminal of battery two to starter. Hit the key a disconnect as soon as possible.

Never had any problems or failures, but didn"t do it a whole lot, either.

Aaron
 
If he hooks two 12 volt batteries in paralell he doubles the avaiable cranking amps while voltage stays the same (12 volts), if he hooks two in series, he doubles the voltage (12 + 12 = 24) butttttttt the cranking amps is no greater then that of the smaller batterys CCA.

If its a 12 volt truck I WOULD NOT recommend he hook two 12's in series, it will blow bulbs and do other damage.

John T
 
The batteries hooked up in series will increase the RPMs of a DC motor. How much is the question.
Amperage increases torque, voltage increases speed.
 
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