Victron Lithium Battery System Upgrade
Upgrade your vessel electrical system with Victron Smart Lithium batteries and associated equipment. This application note shows a typical Schematic Diagram and Bill of Materials for a high-performance Victron based Lithium system.
With large battery capacity and sufficient solar power generation, the system provides all of the electrical power requirement without the need for a generator. In cases where a generator is available, Genset run-time is significantly reduced as it charges the battery at peak efficiency.
Following is a system that can run 240-volt AC electrical equipment including cooking and air conditioning,
- 5,000VA Quattro inverter charger for all 240-volt electrical power
- 1,000-watt solar panel array
- Cross charging from vessel engines
The system shown is for a dual-engine 12-volt vessel. Variants for 24-volt batteries and single-engine vessels are readily adapted.
Victron Smart Lithium batteries are not limited in charge and discharge current by an internal BMS. Each cell has a balancing module and a communications circuit that can signal external circuitry when an abnormal voltage or temperature situation is met. The external BMS will signal load and charge devices to disconnect from the battery as required.
Other external BMS systems take a brute force approach by switching the battery in and out of the circuit. For instance, a low voltage condition would disconnect the battery entirely whereas the Victron system would only disconnect the load circuits and leave the charge circuit path available.
This system is desirable when employing large amp-hour capacity systems that can expect a high charge and discharge current.
The diagram shows the essential Victron components required for a VE.Bus inverter charger system. Outback Marine provides detailed schematics and functional diagrams for specific designs.
The final system design depends on a number of factors including the use case of the vessel and existing equipment. Outback Marine can provide a System Configuration that will meet individual needs. It includes an equipment layout, circuit panel design and detail bill of materials. Contact us for more detail.