Lithium SuperPack 51.2 V/100 Ah NG

The Lithium SuperPack 51.2 V/100 Ah NG from Victron Energy is a self-managing LiFePO4 battery for 48-V power systems. With 5.12 kWh rated power, with its integrated battery management system and Bluetooth monitoring, it combines high storage capacity with relatively straightforward system integration.

Unlike Victron lithium batteries, which require a separate external BMS, cell balancing, protective functions, and the battery monitor are already integrated into the SuperPack NG. This makes the battery particularly suitable for standalone 48-V off-grid and vehicle electrical systems that require a compact, locally monitored energy storage solution.

The Main Benefits

• 51.2 V and 100 Ah: 5.12 kWh rated power for high-performance 48-V systems.
• Integrated BMS: Cell balancing, as well as protection against overvoltage and undervoltage, overtemperature and undertemperature, and overcurrent.
• Built-in battery monitor: State of charge, temperature, warnings, and alarms can be monitored via VictronConnect.
• Self-heating: If necessary, the cells are automatically heated to above 0 °C before charging.
• IP65 protection: Protection against dust and water jets for demanding installation environments.
• Flexible Installation: Install vertically or lay flat on the long side on a level, horizontal surface.

Integrated BMS and VictronConnect

The built-in battery management system monitors the individual cells and controls the charging and discharging paths independently of one another. The integrated protection functions are activated in critical operating conditions. An additional external BMS is not required for operating this SuperPack-NG battery.

The battery connects directly to the VictronConnect app via Bluetooth. The app displays real-time data such as state of charge, battery temperature, voltage, and current, as well as warning and alarm messages. Configuration and firmware updates are also performed through the app. Two LEDs on the housing directly indicate Bluetooth, warning, alarm, and update statuses.

Self-heating for refrigeration operation

LiFePO4 cells must not be charged immediately if the cell temperature is too low. If the temperature drops below 0 °C before charging, the SuperPack NG therefore first interrupts the charging process and warms the cells using the built-in heater. As soon as a safe charging temperature is reached, charging resumes automatically.

For the 51.2-V model, the maximum heating output is 260 W. VictronConnect offers a charger mode and an automatic mode. In automatic mode, the heater is powered by the battery and shuts off if the state of charge is too low.

Suitable Applications

The Lithium SuperPack 51.2 V/100 Ah NG is designed for standalone 48-V systems with appropriately matched chargers, inverters, and protective components. Typical applications include:

• 48-volt off-grid systems in alpine huts, mountain pastures, hunting lodges, or remote farm buildings
• Larger off-grid solar power systems with 48-V inverters
• 48-volt electrical systems in suitable boats, expedition vehicles, and specialty vehicles
• Mobile workshops and self-sufficient commercial applications with appropriate system design
• Replacement of existing 48-V lead-acid battery banks, provided that the charging parameters, power output, space requirements, and protection concept are compatible

Chargers and System Compatibility

The charger must have a suitable LiFePO4 charging profile or freely programmable charging parameters. Victron recommends a charging voltage of 56 V, a float voltage of 54 V, and a charging current of 30 A for this model. The permissible programmable charging voltage range is between 54 and 56.8 V.

The external feedback signal (EFS) can be integrated into an additional warning or shutdown system. Depending on the configuration, it serves as an external disconnect signal or as a charging start signal when the battery is low. Planning and connection should be carried out in accordance with the current Victron manual.

Technical Specifications

Conclusion

The Lithium SuperPack 51.2V/100Ah NG combines 5.12 kWh of storage capacity with an integrated BMS, battery monitor, Bluetooth, and self-heating. It is a suitable solution for professionally designed 48-V off-grid and onboard systems where a self-managing battery without a separate external BMS is desired.

Frequently Asked Questions About the Lithium SuperPack 51.2V/100Ah NG

• Does the Lithium SuperPack NG require an external BMS?

  
  

  No. BMS, cell balancing, and battery monitoring are integrated. The battery automatically monitors and protects its cells.

• Can the battery be charged at temperatures below 0 °C?

  
  

  Yes, thanks to the built-in self-heating system. When the temperature drops below 0 °C, charging is initially paused while the cells are heated. As soon as a safe cell temperature is reached, the battery automatically resumes charging.

• Can I connect multiple SuperPack-NG batteries in series?

  
  

  One Parallel connection is permitted, provided that the wiring, fuses, and system power are correctly sized. Series connection is not permitted.

• What information can be displayed via VictronConnect?

  
  

  Among other things, VictronConnect displays the state of charge, voltage, current, and battery temperature, as well as warnings and alarms. Settings and firmware updates can also be managed via the Bluetooth connection.

• Is the entire 5.12 kWh always available?

  
  

  5.12 kWh is the rated energy at 25 °C. The energy actually available depends, among other things, on the set discharge threshold, temperature, load, system efficiency, and the battery's protection limits.

• Can the battery replace an existing 48-volt lead-acid battery bank?

  
  

  In general, the SuperPack NG is designed to replace lead-acid batteries. However, before replacing them, you must check the charging parameters, inverter power, wiring, fuses, space requirements, and the protection system of the existing system.