Reply With QuoteYes you should, you dont want to send 24v to a 12v starter
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Battery Jump Question
I've got a 24 volt trolling system. If I ever need to jump my cranking battery off should I decouple the two trolling batteries so I'm only jumping with 12v.
Slabmaster
Yes you should, you dont want to send 24v to a 12v starter
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You wont send 24 to starter if you connect jumper cables to one battery.....so no...you do not have to remove the connector cable between the two batteries.
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Slabmaster
Wrong, if they are coupled together + hooked to - any place you hook to is going to produce 24v you will have to uncouple them to get 12vOriginally Posted by "G"
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You only get 24 volts when you connect to the negative on one battery and the positive on the second battery on two batteries connected in series.
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Slabmaster
Slabmaster
You are right, he is asking about jumping a connected 24volt in series battery to a 12v battery, if they are connected you are getting 24v until you disconnect, I had an old John Deere tractor with a 24volt system and John Deere said I couldnt connect to one battery and jump a 12v system.
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Sorry...your wrong...think about it....two 12 volt batteries in series....they are conected to each other with a jumper positive to negative....the 24 volts comes from the negative if the first battery and the positive of the second battery. You can connect jumper cables to pos and negative of one battery and it will be 12 volts....even with your jumper connector wire still between them. So you can jump off of either battery and get 12 volts. I am a retired mechanic and worked on 24 volt tractors and big trucks for over 30 years.
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Slabmaster
So your telling me that I spent all that money on 24v lights when all I had to do was buy regular 12volt lights and only hook to one battery
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Morgan.....the link you sent explains....two 12 volt batterys wired paralell pos to pos and neg to neg.....makes 12 volts....thats correct
Two 12 volt batterys wired in series make 24 volts.....but you can still jump and get 12 volts connecting jumper cables to one battery. I have done this many times.
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