Store & protect
Lithium or AGM battery banks, battery management, isolation, protection and safe distribution.
Hamble · Southampton · Solent
Marine Power Specialists
From lithium battery upgrades to complete inverter, charging, monitoring and solar systems, we design and install integrated power systems built around the way you use your boat.
Integrated marine power specialists.
Knight Marine delivers high-performance marine electrical systems for yachts and powerboats on the River Hamble, Southampton, Portsmouth and across the South Coast.
We specialise in lithium battery systems, marine solar panels, inverter chargers, battery management systems and complete off-grid power solutions designed for life on the water.
More comfort. Less generator noise.
Our bespoke marine electrical installations can help you run everything from kettles and coffee machines to refrigeration and full onboard air conditioning-all in silence, without relying on a noisy generator. Whether you own a sailing yacht, motor yacht, catamaran or powerboat, we tailor an upgrade to your vessel and cruising lifestyle.
- Integrated inverter and charging systems
- Lithium and AGM battery solutions
- Marine solar panel installations
- Cerbo GX and VRM remote monitoring
- Battery management and alternator charging
- Shore power upgrades and electrical refits
- Electrical fault finding and system health checks
Designed for the long term.
From solar panel installations and connected monitoring systems to lithium battery conversions and shore power upgrades, we help boat owners maximise efficiency, comfort and energy independence onboard. Located at Universal Marina, Knight Marine is ready to turn a tired electrical system into a modern, reliable and efficient solution.
A complete power system
Every part specified to work together.
We can improve one weak point or design the entire energy system around your cruising pattern, available space and real electrical loads.
Charge intelligently
Shore power, Orion DC-DC and alternator charging, plus solar working as a coordinated system.
Run 230V loads
MultiPlus and Quattro inverter/chargers sized for the equipment you actually use onboard.
Monitor & control
Cerbo GX, GX Touch, SmartShunt and VRM remote monitoring for a clear view of system health.
Diagnose faults
Battery drain, poor charging and unreliable shore power investigated through our electrical diagnostics service.
Commission & support
Configuration, testing and a clear handover, with ongoing support from our River Hamble base.
Monitoring & control
See exactly what your power is doing.
Intelligent monitoring gives you a clear picture of battery levels, charging, solar input and power consumption-whether you are at the helm, at anchor or away from the boat.
- More usable power, with less weight
- Faster charging and better battery life
- Remote visibility through smart monitoring
- Earlier warning of faults and abnormal loads
Power systems we trust
Integrated equipment, carefully specified.
We select and configure power equipment around the vessel, expected loads and the way the owner uses the boat.