Safe switching between starter battery and on-board battery

Battery switches and mass switches for boats – single or dual system

A battery switch is essential for safety and control on board. In this collection you will find mass switches and battery switches for one or two batteries, with which you can easily switch the power supply on and off - for example during departure, maintenance or storage.

There are also models that allow you to manage two batteries (e.g. starter battery and leisure battery ): use both at the same time or switch them separately while sailing and charging. This prevents empty batteries and keeps control of your on-board system.

What types of battery switches are there?

Single pole earth switch
The classic red rotary knob to completely switch off the power. Indispensable for safety during maintenance, absence or calamities.

Battery switches for 1 or 2 batteries
With rotary selection (e.g. OFF – 1 – 2 – BOTH) you can switch between starter and on-board battery or use both at the same time. Useful for charging and power distribution.

With automatic battery selection (optional)
Some models work together with diode bridges or battery chargers to automatically charge or protect the correct battery.

Built-in or surface-mounted
Most models are suitable for surface mounting, but there are also compact built-in versions for panel mounting or in a battery box.

Frequently Asked Questions

Why is a battery switch important on board?

A battery switch prevents unwanted power consumption, short circuit or leakage current when you are not on board. It is also an extra safety during maintenance or calamities.

What is the difference between a ground switch and a battery switch?

A mass switch simply breaks the entire circuit. A battery switch (for 1 or 2 batteries) also lets you choose which battery you use or charge: 1, 2 or both at the same time.

Can I switch my starter and on-board battery separately?

Yes, with a switch with positions OFF – 1 – 2 – BOTH you can choose whether to use the starter battery, domestic battery or both at the same time. This is ideal for changing power demand or charging via dynamo.

Are these switches suitable for 12V and 24V?

Most switches are suitable for both 12V and 24V systems. The product details clearly state which voltage and maximum current they can handle.