The negative lead of the trailer is connected to the the negative lead of the first battery. The real reason to have dual batteries is in case your main starter battery dies out and you need to jump your main off of your auxiliary battery.
12v Dual Battery Isolator Wiring Diagram Car Boat Marine
How to wire dual batteries. How to install a marine dual battery setup for your boat. If you install a second battery in the caravan link the two together as shown in drawing two then connect the positive from your solar regulator to the positive on battery b and the negative from your solar regulator to the negative on battery a that way any voltage drops will be equal between the two batteries. A real world dual battery setup will include a dual battery isolator a dual battery monitor all the necessary wiring and more. Pick the best battery switch for your boat. How to wire a dual battery and power inverter setup duration. The biggestonly problems with dual batteries.
Pick a location for the battery switch on. The trailer positive lead should be connected with the first batterys positive terminal. The most affordable way to purchase the dual circuit plus switch and si7610 acr is to buy a battery combiner kit that includes both the add a battery dual circuit system. Make sure the dual battery switch is designed for two batteries some are onoff switches and will. A dual battery isolator ensures that the two batteries are charged in order to keep the two power supplies topped up and working. Then connect the two positive posts together with charger wire secure the clamps and then do the same with the negative posts.
Install the second battery to the boat. Once you have the batteries wired properly in parallel you will need to connect the 12 volt power wire from the trailer 7 way connector to the positive wire on the first battery. Charge management battery isolators used to be the best method of distributing charging current to multiple battery banks while assuring that they remain electrically. We have a photo see photo at right that shows how to wire the batteries in parallel. When connecting two batteries together on an rv trailer you usually connect the batteries in parallel to draw 12 volts from both of the batteries. Mikegolden games 113713 views.
Gallery of How To Wire Dual Batteries
