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#Boat dual battery isolator wiring diagram how to#
#Boat dual battery isolator wiring diagram full#
#Boat dual battery isolator wiring diagram series#

Heavy Duty Battery Selector Switch with Alternator Field Disconnect Their use of the traditional Perko bolt circle makes for easy installation, whether new or as a replacement.

#Boat dual battery isolator wiring diagram series#

Perko's 8501 Series battery selector switches are among the most popular battery switches ever produced. They can also serve as an emergency main disconnect switch in the event of an electrical problem. The Perko Single Battery Disconnect Switch permits the battery to be shut off from the electrical system when the vessel is not in use. This switch provides the flexibility of selection between batteries or combined operation of both batteries in parallel for starting or charging. The Perko Dual Battery Selector Switch allows the addition of an extra battery for accessories. An optional key lock helps to prevent unauthorized use of the vessel. They allow for a quick and easy way to shut down the entire electrical system in an emergency. They help to prevent battery drain during periods of inactivity. They are used to connect or disconnect electrical devices from the electrical system. Battery disconnect switches help manage the overall use of electrical power on-board.

#Boat dual battery isolator wiring diagram how to#

If you have any questions or doubt about how to use, install or wire any battery switch, consult a certified marine electrician. But adding on-off switches to the circuit you can force the alternator to charge the battery you want charged. Running with a selector switch in the both position (see selector switches) may not fully charge all batteries. All switches are ignition protected.īut for boats with multiple engines and multiple batteries, using multiple on-off switches (sometimes in conjunction with a selector switch) can provide different benefits. Like all Perko products, these time-proven switches are made in the USA. The most obvious (and most common) is simply to use it to turn off your battery when in storage so that your battery does not drain as quickly and is ready to go when you are. There are many ways to use a Perko Battery On-Off Switch.

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Consult you engine wiring diagram for the proper connections if you have an I/O or inboard engine. Run a new 10-gauge wire from the alternator output wire of the engine to the battery isolator input terminal. Check your motor’s wiring diagram to do this properly. If you have an outboard, the alternator wire must be removed from the positive battery connection at the motor end. Connect two 10 gauge wires from the battery isolator to each positive battery terminal. Attach the battery isolator to an inside wall of the boat with self-tapping screws, or if you can reach behind the panel, you can thru bolt the unit. Mount the battery isolator, which is about half the size of a normal battery, in a dry area somewhat close to the battery bank. To select the proper battery isolator, check with your local dealer so that he can advise you of the proper model for your application.

This means you will never be suprized with a dead battery.

#Boat dual battery isolator wiring diagram full#

To make sure that both batteries are fully charged, install a low cost battery isolator.Ī battery isolator allows each battery in the boat to receive a full charge even if it is not the battery being selected by the battery switch. This could be a problem if one of the batteries is low or completely dead, as the dead battery will draw a charge from the charged battery and may drain the charged battery so that the motor cannot be started. Turning the battery switch to “both” connects the two batteries together. If you have a dual battery system in your boat, you may have noticed that only the battery selected by the battery switch is being charged while the engine is running.