Backup system with 2.4KkWh Pylontech LiFePo4 storage and MultiPlus ii 48/3000 Victron Energy inverter 1-Phase

The backup systems from Offgridtec are ideal for emergency power supply or for expanding an existing solar system. The systems include Lithium-Ion batteries from Pylontech, a suitable MultiPlus-II inverter, and a Cerbo GX MK2 for system monitoring from Victron Energy. This ensures that you can maintain your energy supply even in the event of a power outage.

Thanks to the UPS function, the MultiPlus-II remains powered on even during a network fault and takes over the supply to connected devices. The transition occurs so quickly (in less than 20 milliseconds) that uninterrupted operation of computers and other electronic devices is guaranteed.

Applications of the Offgridtec Backup Kit:

• Emergency power supply
• Off-grid solar systems (island systems)
• Retrofitting existing PV systems
• Grid-tied power supply
• UPS systems

What does the Offgridtec Backup System include?

• Pylontech US2000C 2.4kWh LiFePO4 Battery (depending on selection 2x or 4x)
• 1x Victron MultiPlus-II 48/3000/35-32 230V device combination
• 1x Victron Lynx Distributor
• 1x Victron Cerbo GX MK2 control panel
• 1x Victron GX Touch 50 display panel for Cerbo GX
• 1x 1.8m VE.Can to Can-Bus BMS Type A cable
• 1x 3m Victron RJ45 UTP cable
• 1x 1m Offgridtec battery cable 50mm² M8 lugs
• 1x 125A 70V MEGA fuse
• 1x Pylontech battery connection cable set

The MultiPlus device combination is preconfigured to be compatible with the Pylontech batteries.

Extended Use of Your Backup System

To establish an ESS (Energy Storage System) with the backup system, an energy meter with connection cable is needed:

• Victron VM-3P75CT Energy Meter 3-phase meter 75A/phase
• 5m Victron RJ45 UTP cable

With this energy meter, you can perform a grid-parallel installation and subsequently monitor your energy consumption and control your energy costs. Thanks to phase compensation, you can operate the 3-phase meter for single-phase systems as well. This enables seamless integration of decentralized energy sources and loads into the existing power grid.

For an ESS to be considered in the preconfiguration, the meter must be purchased in advance or together with the system!

The Storage Solution – Pylontech US2000C Batteries

The US2000C storage system is a next-generation lithium battery. It has been specifically designed to meet the high demands placed on backup storage solutions. Thanks to advanced technology, the highest safety standards and a long service life, even with regular deep discharges, are guaranteed.

• Extremely cycle-resistant – over 6000 cycles at 95% DoD
• Absolutely safe lithium technology
• High charge and discharge capacity possible
• Integrated BMS
• Very high storage density – low weight and compact design
• Completely maintenance-free and durable
• Precharge function to protect the ESS system from overvoltage

The Core Electronics – Victron MultiPlus-II Device Combination

The MultiPlus-II is a high-end device combination from Victron Energy, consisting of a 48V battery charger, inverter, and transfer switch. This combination connects the classic MultiPlus components with an external current sensor and an integrated anti-islanding function. This extends the PowerControl and PowerAssist functions up to 50A and expands the potential application area to energy storage system applications. Therefore, the MultiPlus can be ideally utilized as a backup device in grid-tied and off-grid systems for power supply.

• 3000W output power with non-linear load – 2400W continuous load – 6000W peak power
• for 48V battery voltage
• 32A transfer switch
• 35A battery charger
• Output voltage: 230 VAC, frequency: 50 Hz
• max. efficiency: 95%
• Protection class: IP22

System Monitoring with the Victron Cerbo GX MK2 and GX Touch Display

With the Cerbo GX MK2 communication central, you can easily control and monitor your system. The flexible connection options maximize your system performance. Monitoring your installation is possible regardless of location, thanks to the Cerbo GX MK2. With the GX Touch 50 display, you always have all parameters of your system in view and can make changes quickly and easily.