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their are many many types of 48 volt systems you need to show or state more info on your system

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Q: Where are the positive and negative posts in a 48 volt system?
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How can you use three 12 volt batteries to make 24 volts?

You only need 2 12 volt batteries to get 24 volts. Join the negative post on one battery to the positive post on the other battery with a cable then connect the remaining positive and negative posts to the vehicle that has a 24 volt system.


How do you connect two twelve volt batteries for a truck?

Assuming the truck has a 12 volt system, connect the batteries in parallel, that is positive to positive and negative to negative.


How do you charge two 6 volt batteries with a 12 volt charger?

Remove any wiring from batteries, connect positive post of one battery to the negative post on the other battery. You now have a 12 volt battery system. Connect your charger to to unused positive and negative posts and they will charge as a 12 volt battery. Need more help contact me through my board and I will try to help


How do you charge two 6 volt batteries with a 12 volt charger diagram if possible?

Remove any wiring from batteries, connect positive post of one battery to the negative post on the other battery. You now have a 12 volt battery system. Connect your charger to to unused positive and negative posts and they will charge as a 12 volt battery. Need more help contact me through my board and I will try to help.


Wiring diagram to hook 2 12 volt batteries on International Harvester 806 Diesel?

The batteries will have to be connected in parallel. Connect both positive posts to the starter solenoid and both negative posts to the frame.


Is a 1960 Ford Thunderbird a negative or positive ground and is it 6 volt or 12 volt?

The 1960 Thunderbird was 12 volt negative ground. The 1955 Thunderbird was 6 volt positive ground and 1956 and up was 12 volt negative ground.


How do you wire two 12 volt car batteries to make 12 volt?

You would wire them in "Parallel". That means positive post to positive post and negative to negative. Two 12 volt batteries wired this way doubles the capacity and amperage capability of the system. It does not cause any harm to the electrical system as the system sees them as one big battery.


How do you charge 6 volt batteries with a 12 volt charger?

If you have two 6 volt batteries you can take a jumper wire and connect the negative post on one battery to the positive post on the other battery then connect the remaining pos and neg posts to the 12 volt battery charger.


Do 1949 dodge pickups have positive ground?

If the 49 dodge truck is still on it's original 6 volt electrical system it is positive ground. All 6 volt auto systems are/were positive ground. All 12 volt systems are negative ground.


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Does the farmall A have a positive ground electrical system?

Yes, this tractor has a positive ground system. It may have been retrofitted to 12 volt negative ground over the years though.


Is my 1949 truck 6 volt or 12 volt?

If your 1949 truck is a CHEVY or GMC and it still has the original electrical system, it would be 6 volt, negative ground. If it is a Dodge or a Ford with the oringinal electrical system it would be 6 volt, positive ground.