Guide · Onboard Electronics

Onboard Electronics: Charging, Solar, Lighting, and Installation

Power on board requires careful planning: from chargers and solar modules to cables, fuses, and navigation lights. Here you will find the most important basics for making your selection.

At a Glance

  • Choose charging technology suitable for the battery type
  • Only operate solar modules with a charge controller
  • Select cable cross-section based on current and cable length
  • Navigation lights must be certified

What You Should Consider

Batteries and Charging Technology

Battery chargers, DC-DC chargers, and charge controllers must match the battery type—AGM, gel, and lithium batteries require different charging profiles. Before purchasing, check which batteries are on board and how they are charged (shore power, alternator, solar).

Solar on Board

Solar modules are always connected to the battery via a charge controller. How much power is practical depends on your consumption, the available surface area, and your cruising grounds.

Cables, Switches, and Fuses

The cable cross-section is determined by the amperage and cable length; every line must be properly fused. Tinned cable is suitable for the damp, salty environment on board. Work on 230 V systems should be left to a professional.

Lighting and Navigation Lights

LED bulbs save power and last a long time. Navigation lights must be approved for the size of the boat and cover the required visibility ranges—ensure they have the appropriate certification.

Onboard Electronics in the Shop

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We are currently putting the products for this category online. Are you looking for something specific? Ask us directly—we will be happy to get it for you.

Frequently Asked Questions

Questions about Onboard Electronics

Is your question not listed? Write to us.

Overview of All Guides

The battery type, capacity, and voltage are decisive. Write to us and let us know which batteries you use—we will help you with the selection.

No, a charge controller must always be placed between the module and the battery to protect the battery from overcharging.

Tinned strands are significantly more resistant to corrosion from moisture and salt than bare copper.

No. Navigation lights must be approved for the size of the boat. Pay attention to the manufacturer’s approval and certification.

Consultation

Unsure what fits your boat?

Tell us about your boat, your existing equipment, or your cruising area—we will check compatibility and equipment before you order.

or via email: info@hycon-nautico.es