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Some items may be controlled off of both batteries at one time, but others can be used separately based on what you need. Therefore, many boats, especially house boats, now have two batteries in place at all times and they have a switch that runs between them. If it cannot start, the alternator will not charge. When the day is done and you are ready to head back to shore, that single battery may be dead which will leave you calling for help. Once you turn off the engine, the alternator will stop charging and then your lights, radios, and other equipment will put a steady pull on that battery. However, this battery will only be charging while the motor is running. If your boat has one battery on it, you will have a single battery that handles everything. Why Some Boats Require a Battery Selector Switch All boaters could benefit from using a battery isolator switch, even if there are only some boats that require them.
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These items may include a radio, lights, fish finders, trolling motors among other items. This is very useful in keeping the battery that you run your boat with, fully charged while out on the water, especially if you have a lot of battery powered items on board your boat. These switches transfer batteries without reconnecting your wires each time you drain one battery. Jump To> Marine Battery Switch Reviews What is a Marine Battery Switch?
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They do not see the value behind them, and even if your boat does not have one, you may want to consider installing one. However, not everyone completely understands what the purpose of these switches are. Many people enjoy spending summers on their boat and a lot of boats come equipped with battery switches.
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