anyone out there got some good dual battery setups diagrams
nothing too complex but something in a foolprooth works no matter what sortta thing?

Parts List:
200 Amp constant duty solinoid (latching relay) with 750 amp peak amp rating.
3 Way on/off/on toggle swithch
14 gauge wire and crimp connectors
10 amp in line fuse holder
Battery Cables

In Normal position,power is sent to solinoid in crank/run position connection both batteries,they charge and discharge equally.

In OFF position batteries are isolated.

In JUMP position,voltage taken form second battery to energize the solinoid,thus connecting both batteries together. Good to use if main battery becomes drained.



The Switch:
In normal mode on: this gets wired to the ignition harness wire that gets power in the crank/run position.

The Off position gets wired to the solonoid; this is the power line to the solinoid.

The jump position on: this gets the inline fuse and goes to the positive side of the second battery. From the positive side of the second battery goes to the solinoid,call it the input side. The other lug on the solinoid,call it the output side,goes to the positive side of the main battery,or can go to the starter solinoid. To figure out what is the normal and what is the jump position for the switch,use a volt meter. Usually the prong opposite the direction the switch is thrown is the energized one.

Where did you get your constant 200 amp solinoid? I've looked for one put haven't found one yet.

OOOOOPS!:emb2:

Make that a 200 amp relay (mechanical latching relay). You should be able to get it at any R.V. service shop. I got one through an intustrial parts supplier but since found out that my local RV Land sells the same thing for half the cost.

Plus they will know exactly what you are doing with it and might be able to give you more options.