Marine DC Electrical Systems
Expert DC electrical system design, installation, and repair for all onboard electronics. From navigation systems to bilge pumps, reliable 12V/24V power distribution throughout your vessel.
Marine DC Electrical Systems
The DC electrical system on your vessel is the essential backbone for operating a wide range of critical equipment, including navigation instruments, bilge pumps, and ensuring reliable engine performance. Marine DC systems face unique challenges from harsh environmental conditions, such as salt spray, which can lead to corrosion of connections and components, and constant vibration, which can disrupt connections and reduce equipment lifespan. The reliability of these electrical systems is crucial when you are miles from shore, as any failure could compromise safety and navigation. Therefore, investing in high-quality components, regular maintenance, and corrosion protection measures is vital to ensure your DC electrical system operates reliably in any environment.
What We Do
System Design & Installation
- Custom design and installation of DC systems for new builds or retrofits
- Proper wire sizing calculations based on ABYC standards
- Circuit protection with marine-rated breakers and fuses
- Distribution panel design and fabrication
DC Components We Install
- Battery banks and selector switches
- Charging systems (alternators, battery chargers)
- Inverters and inverter/chargers
- DC-DC converters
- LED lighting circuits
- Bilge pump systems
- Navigation electronics
- Anchor windlasses
- Trim tabs and thrusters
- If it requires DC power, we can install it
Troubleshooting & Repair
- Dead/non-functioning circuits
- Voltage drop testing and correction
- Parasitic draw diagnosis
- Corroded connection repair
- Circuit tracing and documentation
- Ground fault identification
Why Proper DC Wiring Matters
Improper DC wiring is the leading cause of boat fires. Issues like undersized wires, poor connections, and inadequate circuit protection create dangerous heat buildup. We follow ABYC E-11 standards to ensure your system is safe and reliable.
Our Approach
- Assessment: Complete system evaluation including load analysis
- Documentation: Create or update electrical system diagrams
- Solution Design: Develop a plan that meets your needs and budget
- Quality Installation: ABYC-compliant work with marine-rated components
- Testing: Comprehensive testing and sea trial verification
- Handover: Detailed documentation and owner education
Service Areas
We provide mobile dockside service throughout the Florida Keys, from Key West to Key Largo. Emergency response available.
Get a Free Estimate
Contact us to discuss your DC electrical needs. We'll assess your system and provide a detailed proposal.




