Maintaining Dinghy Battery
I am in the process of getting a new dinghy and would like to have it wired in such a way as to maintain a charge in the starting battery when we tow. The problem is that our MH is currently wired ...
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Replace your 4-pin flat trailer connector set with a 6-pin round utility or 7-way blade RV plug set.
Then you need to find a key-on/off source of 12v power at the fuse box of the coach, fuse it appropriately. Using a key-on/off source allows the trailer charge connection to be dead whenever the coach ignition key is off.
Run a 10ga or thicker wire from the fuse box back to the battery charge pole of the coach side of the new trailer connector.
From the trailer side of the connector, run another same size wire to the car's battery + terminal. Fuse this wire with an in-line fuse next to the battery, using same size fuse as you used at the coach's fuse box.
Run a same size ground wire from the battery - terminal to the trailer side of the connector.
From the coach side of the connector, run a ground wire to the chassis of the coach.
Then you need to find a key-on/off source of 12v power at the fuse box of the coach, fuse it appropriately. Using a key-on/off source allows the trailer charge connection to be dead whenever the coach ignition key is off.
Run a 10ga or thicker wire from the fuse box back to the battery charge pole of the coach side of the new trailer connector.
From the trailer side of the connector, run another same size wire to the car's battery + terminal. Fuse this wire with an in-line fuse next to the battery, using same size fuse as you used at the coach's fuse box.
Run a same size ground wire from the battery - terminal to the trailer side of the connector.
From the coach side of the connector, run a ground wire to the chassis of the coach.
