Beneteau Antares 9 Lithium & Solar Upgrade | Victron Off-Grid Power System for Air Conditioning
Modern cruising boat owners want more than just shore power convenience - they want the ability to enjoy all the comforts of the boat quietly and reliably while away from the dock. For this new Beneteau Antares 9, the goal was to create a clean, fully integrated lithium and solar power system capable of supporting onboard air conditioning and extended off-grid use without relying on a traditional generator.
The result is a custom Victron Energy electrical system featuring 400 watts of solar, a 460Ah Epoch lithium house battery bank, dual DC/DC charging from the twin outboards, and a Victron MultiPlus II inverter/charger system designed specifically for the way modern Antares owners actually use their boats.
Designed for Quiet, Reliable Air Conditioning Power
One of the primary goals of this installation was giving the owner the ability to run onboard air conditioning without needing to depend on a generator.
Traditional generators certainly have their place, but many owners are looking for quieter and lower-maintenance alternatives for overnight comfort at anchor. Lithium battery systems paired with large inverter chargers and intelligent charging sources have changed what is possible on modern cruising boats.
With this setup, the owner benefits from:
Quiet operation without generator noise
No fuel smell commonly associated with generators
Reduced maintenance requirements
Efficient charging from both solar and the twin outboards
Reliable inverter power for onboard electrical systems
Full system visibility and monitoring through Victron Cerbo GX
For owners who enjoy peaceful evenings at anchor, early mornings on the water, or simply a cleaner onboard experience, lithium-based marine power systems are becoming one of the most valuable upgrades available.
System Components Installed
This custom marine electrical installation on the Beneteau Antares 9 includes:
Epoch 460Ah lithium battery bank
Victron MultiPlus II inverter/charger
400W solar panel system
Victron SmartSolar MPPT charge controller
Dual Victron Orion XS DC/DC chargers
Victron Cerbo GX monitoring and display system
Integrated AC and DC power management
Clean cable routing and serviceable electrical layout
Every component was selected to work together as a fully integrated Victron-based marine power system with a strong focus on reliability, efficiency, and future serviceability.
Designed for Quiet, Reliable Air Conditioning Power
One of the primary goals of this installation was giving the owner the ability to run onboard air conditioning without needing to depend on a generator.
Traditional generators certainly have their place, but many owners are looking for quieter and lower-maintenance alternatives for overnight comfort at anchor. Lithium battery systems paired with large inverter chargers and intelligent charging sources have changed what is possible on modern cruising boats.
With this setup, the owner benefits from:
Quiet operation without generator noise
No fuel smell commonly associated with generators
Reduced maintenance requirements
Efficient charging from both solar and the twin outboards
Reliable inverter power for onboard electrical systems
Full system visibility and monitoring through Victron Cerbo GX
For owners who enjoy peaceful evenings at anchor, early mornings on the water, or simply a cleaner onboard experience, lithium-based marine power systems are becoming one of the most valuable upgrades available.
If you are considering a lithium battery, solar, inverter, or Victron upgrade for your Beneteau or other cruising boat, contact us to discuss a custom marine electrical solution designed around the way you use your vessel.
