How to wire or re wire a boat 1. The following basic wiring diagrams show how batteries battery switches and automatic charging relays are wired together from a simple single battery single engine configuration to a two engine one generator and four battery bank system.

Guest Dual Battery Switch Wiring Diagram Wiring Diagram
Boat battery switch wiring. This should be someplace easily accessed by the boat. A battery in a boat electricity is stored in one or more batteries. Main battery switch in nearly all cases your boat wiring system should have a marine grade main battery disconnect. The batteries are charged. A wiring diagram is a simplified conventional photographic representation of an electrical circuit. Disconnect the negative cable from the battery.
How to install a marine dual battery setup for your boat 1. Attach a battery terminal to the end of the positive cable and run the wire along the route you chose to where the boat battery switch is going to be. Install a battery box for the second battery if one is being installed. Having dual batteries that are selected with a switch will allow me to make sure i can always start the boat even if one battery. Determine the best location for the battery switch. Connect another wire to the solenoid by connecting the wire to the out terminal on the battery switch back to the solenoid.
Its primary job is to permit you to select which battery you want to use for starting and charging or the operation of your other devices. Make sure the dual battery switch is designed for two batteries some are. Attach one end to the battery switch with the use of your tools. How to wire a marine battery switch step 1. The perko battery switch is usable for boats with two or more batteries. Install the second battery to the boat.
You can use it with dual or single systems. American boat and yacht council abyc standards permit a 3 percent voltage drop for critical. Assortment of perko marine battery switch wiring diagram. Two engines two engine batteries a separate bank of lighting batteries and two switches the allows both engines to be used to charge lighting batteries. In this video i add a second battery to my boat the green machine. It shows the elements of the circuit as simplified forms and the power and signal connections between the tools.
Pick the best battery switch for your boat. Port switch indicates which battery 1 all 2 is connected to the port engine and the starboard switch indicates which battery 1 all 2 is connected to the starboard engine. Choose a marine battery that meets the engine specs.