Victron Quattro 8 kW Inverter System Review with 16 Batteries and

Review of the Victron Quattro 8 kW Inverter System with Balancers and 16 Batteries of 12V 200 Ah

The Victron Quattro 8 kW inverter is a versatile and powerful solution for off-grid and hybrid energy systems, combining the functions of a powerful inverter and charger with advanced source switching capabilities.

Main Features of the Victron Quattro 8 kW Inverter:

Inverter Power: 8 kW, allowing the connection of significant loads, including household appliances, heating systems, pumps, electrical tools, and even small commercial systems.
Four input options: Quattro can be connected to two independent power sources, such as a generator and grid, or two separate generators, as well as backup systems.
Power distribution functions: If one line exceeds its capacity, the device automatically compensates for the shortage through the second line.
Pure sine wave output: Ensures stable operation even for sensitive devices.
Parallel connection capability: Multiple inverters can be installed in parallel to increase power or provide redundancy.

Battery System

For this system, 16 batteries of 12V with a capacity of 200 Ah each are used. Since they are connected in parallel and series to achieve the required voltage and capacity, we get the following data:

Total Battery Capacity: 16 batteries at 12V 200 Ah provide 3200 Ah at 12V, which equals 38.4 kWh of energy.
Battery Configuration: For an 8 kW inverter operating at 48V, the batteries must be connected in 4 parallel strings of 4 batteries. This creates a working system of 48V with a total capacity of 800 Ah (38.4 kWh).

Storage Capacity and Autonomy Time

The autonomy time of the system will depend on the total load of the connected devices. For example:

At full load (8 kW): The total battery capacity (38.4 kWh) divided by 8 kW provides approximately 4.8 hours of autonomy.
At partial load (4 kW): Autonomy increases to about 9.6 hours.
At low load (2 kW): The runtime extends up to 19.2 hours.

To prolong battery life, it is recommended to use only 50-70% of the battery capacity, providing a practical capacity of about 19.2-26.9 kWh.

Battery Balancing

Using battery balancers is essential in systems with multiple batteries. Balancers help equalize the voltage between batteries in parallel strings, extending battery life and increasing system efficiency.

Advantages of the System:

Flexibility: Victron Quattro allows connecting multiple power sources (generator, grid, and solar panels) and automatically switching between them.
Reliability: Victron is known for its durable and highly efficient solutions for autonomous systems.
Scalability: The system power and capacity can be increased by parallel connection of additional inverters and batteries.
Intelligent Control: The inverter can be integrated with the Victron Energy Management System (GX) for remote monitoring and configuration.

Conclusion

The system based on the Victron Quattro 8 kW inverter and 16 batteries of 12V 200 Ah is a powerful and reliable solution for creating autonomous and backup power systems. This configuration will provide extended operation times under small loads and up to 4.8 hours of autonomy at high power (8 kW). Intelligent balancing and flexible configuration make this system ideal for both residential and commercial projects.