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OnanMan
OnanMan, Generator Tech
Category: RV
Satisfied Customers: 255
Experience:  14 years in the Cummins/Onan distributor network, Level 3 certified in RV, Marine and industrial fie
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I bought an rv ,1988 eldorado EMC, it has 3 batteries. 1 is

Customer Question

I bought an rv ,1988 eldorado EMC, it has 3 batteries. 1 is the main,starts the rv. the other 2 are for the 12 volt system & lighting & stuff for the rv. the 2 batterier are not hocked-up. all the wires are there, but I dont know how to hook them up. could you tell me in simple terms how to do this.
Submitted: 6 years ago.
Category: RV
Expert:  OnanMan replied 6 years ago.

OnanMan :

Do you know if the house batteries are 12V each or 6V each?

Customer :

12 each, and they connect to the main bat. r they dc todc or what

Customer :

are they positive to positive ?

OnanMan :

how are the wires that you have arranged? In other words, do you have 2 positive and 2 negatives and all going into the coach?

Customer :

the main starts the engine, are the other 2 in parellel wht the first + to + - to -

Customer :

sorry i cant spell very well

Customer :

yes to your ?

OnanMan :

Sorry, it's kind of hard to understand without seeing what you have but yes, with 2 12V batteries on the house, positives to positive and negative to negative. This is called a parallel. If you connect in series (pos to neg) would create 24V yikes! would damage all 12V systems

OnanMan :

are the wires color coded?

OnanMan :

black and red?

Customer :

if this helps its an eldorado D360T

Customer :

just found some extea paperwork

OnanMan :

sorry, it's no help to me, I will ask another expert to help you with this