Replacement, reinstallation and modernisation of on-board electronics
A refit of the yacht's electronics not only brings more comfort, but above all more safety and self-sufficiency. In this project, we were able to completely modernise a Hanse 411 in Greifswald electrically – from the boat's electrical system and batteries to the autopilot and solar system.
The current situation
The existing electrical system was functional, but technically outdated and no longer efficient. The goal of the refit was clear: more usable energy, less weight, better monitoring and true self-sufficiency.
Which batteries are useful on board?
The sailing yacht was equipped with two 100Ah AGM batteries, whose usable capacity was only around 50%, or 100Ah. This meant they were heavy and offered limited self-sufficiency, which were important factors for the owner.
As part of the refit, the Hanse 411 was fitted with two 200Ah Victron Lithium NG batteries with a usable capacity of 90%, 360Ah. This achieved three times the capacity with the same space and half the weight.
The result: significantly more self-sufficiency, longer layovers without shore power and a future-proof energy system.
Adapted charging technology
To ensure that lithium batteries last a long time, we have adapted the entire charging technology. This protects the batteries with an automatic shut-off and prevents the alternator from overloading. A combination device consisting of a charger and inverter (2000 VA) provides up to 230 V on board without shore power.
The Victron VRM monitoring system allows remote monitoring and can be accessed online from anywhere. It also sends alerts in the event of problems such as shore power failure.
Solar panels for self-sufficient travel
The owner wanted to remain independent – even when the boat is moored at the jetty in summer without shore power. We therefore permanently installed a 100 Wp solar panel on the yacht's hatch. This provides an additional energy yield of approximately 33 Ah per day when the sun is shining. As it was not possible to install it permanently, a 120 Wp foldable solar panel was installed that can be easily attached to the railing.
Advantage: No stress with zero load consumption, batteries remain charged even when the main switch is off.
New autopilot and modern navigation
A Raymarine Evolution EV-200 Sail autopilot has been installed below deck. Thanks to its modern 9-axis sensor technology, it offers significantly better steering performance in difficult conditions or when sailing into waves. It also runs more smoothly, consuming less power and wearing less quickly.
USB sockets – small but extremely important
Smartphones, tablets, radios, wearables – you can never have enough USB sockets. That's why we've integrated an additional one.
Conclusion: yacht electronics refit on a new level
This electronics refit shows what modern boat electrics can do today:
• More energy with less weight
• High safety through monitoring
• True self-sufficiency thanks to lithium & solar
• Noticeably more comfort when sailing
Everything from a single source
Our team carried out the installation directly on the yacht. This naturally included laying cables, connecting all devices, professional testing and commissioning.
Are you planning a refit of your yacht or thinking about an upgrade? Get in touch with our team, we will be happy to advise you!