Why Does My Boat Have Two Batteries

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Why Does My Boat Have Two Batteries. My boat came with all wiring only connected to the threaded terminals. Another reason why boats would have two batteries is so that the electronics on board run separately from the engine or motor battery.

How To Hook Up Two Batteries In A Boat Diagram
How To Hook Up Two Batteries In A Boat Diagram from batterymanguide.com

Most boats these days have at least two batteries on board and for good reason. If you have a 24 volt troller the batteries need to be in series. A lot of battery switches are a two-position switch.

You can use the second battery to start the engine and then switch to the low battery to give it a charge while youre running.

Some battery switches have an. There is the starting battery which is responsible for revving up the engine and then there is the house battery. Many boats are set up with two battery systems that use a starting battery and another battery sometimes called a house battery or the electronics battery. It may go by other name.