Saoirse Downs
Marine battery switches are an important component of boats, especially those with a lot of battery-powered appliances. They help prevent a boat's battery from draining by transferring batteries without reconnecting the wires. The type of battery switch you need depends on the number of batteries and engines you have. For example, a boat with two batteries and one engine would use a Blue Sea 6007 or Bluewater 1-2-BOTH switch. This switch has two inputs and one output and can be used to manually control which battery is charged by the engine's alternator.
| Characteristics | Values |
|---|---|
| Purpose | To prevent a boat's battery from draining by transferring batteries without reconnecting the wires |
| Use | Commonly used on boats with two batteries: a "start" and a "house"" |
| Function | Allows the user to manually control which battery is charged by the engine's alternator |
| Settings | Off, Pos 1, Pos 2, Both |
| Off | Both batteries are isolated |
| Pos 1 | The house battery is isolated, and everything is running off the start battery: house loads, engine cranking, and engine charging |
| Pos 2 | The start battery is isolated, and everything is running off the house battery: house loads, engine cranking, and engine charging |
| Both | The house and start battery are combined |
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What You'll Learn
The Bluewater 9800-007-11 battery switch
The Bluewater 9800-007-11 switch allows you to manually control which battery is charged by your engine's alternator. This is particularly useful if you do not have an Automatic Charging Relay (ACR) installed. By using a dual battery switch, you can help prevent your boat's battery from draining by transferring batteries without reconnecting the wires. This can be especially beneficial if your boat has a lot of battery-powered appliances.
The Bluewater 9800-007-11 switch has four positions: OFF, POS 1, POS 2, and BOTH. When in the OFF position, both batteries are isolated. In POS 1, the house battery is isolated, and everything runs off the start battery, including house loads, engine cranking, and engine charging. POS 2 isolates the start battery, and everything runs off the house battery. Finally, the BOTH position combines the house and start batteries.
The Bluewater 9800-007-11 switch is designed for the marine environment, featuring tin-plated copper contacts and studs inside and out. It has a physical snap as it locks into place, providing certainty about its position. Additionally, the 7/8″ Stud length accommodates multiple wire lug connections, which are common on boats.
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The Blue Sea 6006 or Bluewater ON-OFF Battery Switch
A dual battery switch for boats helps to prevent the battery from draining by transferring batteries without reconnecting the wires. This is especially useful if your boat has a lot of battery-powered appliances.
The Bluewater 1-2-BOTH Battery Switch is used for two-battery, single-engine boats. It has two inputs and one output, and can also parallel both outputs. This switch is used when you don't have an Automatic Charging Relay installed and prefer to manually control which battery is charged by the engine's alternator.
It's important to note that overcharging a battery can be damaging, so an isolator is needed to automatically take a fully charged battery out of the equation. You can also use one or more ACRs to automatically prioritise charging.
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$148.13 $175.66
The Blue Sea 6007 or Bluewater 1-2-BOTH
A dual battery switch helps prevent your boat's battery from draining by transferring batteries without reconnecting the wires. This is especially useful if your boat has a lot of battery-powered appliances. The Blue Sea 6007 or Bluewater 1-2-BOTH is a dual battery switch designed for boats with two batteries: a "start" and a "house". It has two inputs and one output, and can also parallel both outputs. This switch is ideal if you do not have an Automatic Charging Relay installed and would prefer to manually control which battery is charged by your engine's alternator.
The Bluewater 1-2-BOTH has make-before-break contacts, meaning that as you rotate from one position to another, the next position is closed before the previous position opens. This switch also has a physical snap as it locks into place, so there is no question as to whether it is in position or not. The 7/8″ Stud length allows for the multiple wire lug connections common on boats.
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The Blue Sea 6011 or Bluewater ON-OFF-COMBINE Battery Switch
A dual battery switch for boats helps to prevent the battery from draining by transferring batteries without reconnecting the wires. This is especially useful if your boat has a lot of battery-powered appliances.
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The Blue Sea 6010 and Blue Sea 6006 (Bluewater ON-OFF) with ACRs
A dual battery switch helps prevent your boat's battery from draining by transferring batteries without reconnecting the wires. This is especially useful if your vessel is equipped with a lot of battery-powered appliances.
The Bluewater 1-2-BOTH battery switch has 2 inputs and 1 output, and the built-in capability to parallel both outputs. It is commonly used on boats with two batteries: a "start" and a "house". It is used when you do not have an Automatic Charging Relay installed and prefer to manually control which battery is charged by your engine's alternator.
The 7/8″ Stud length allows for the multiple wire lug connections common on boats. For example, you may like to run both your engine feed cable, and the conductor feeding your boat’s switch panel from the same output stud. The Bluewater 1-2-BOTH boat battery switch has make-before-break contacts, meaning that as you rotate from 1 to 2 to BOTH, the next position is closed before the previous position opens.
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Frequently asked questions
A dual battery switch allows you to manually control which battery is charged by your engine's alternator.
A dual battery switch has two inputs and one output. It can be used to combine the two batteries or isolate them, so that one battery is charged by the engine's alternator.
The Bluewater 1-2-BOTH battery switch is a dual battery switch with two inputs and one output. It has an OFF position, a POS 1 position, a POS 2 position, and a BOTH position.
The OFF position isolates both batteries. The POS 1 position isolates the house battery, so everything runs off the start battery. The POS 2 position isolates the start battery, so everything runs off the house battery. The BOTH position combines the two batteries.
A single battery single engine boat uses one battery switch, while a two battery single engine boat uses two battery switches.
