Offgridtec Backup Kit 7kWh Pylontech LiFePO4 Battery - Victron MultiPlus II 48/5000 Inverter 1-Phase

Offgridtec’s backup systems are ideal for emergency power supply or for expanding an existing solar system. In addition to lithium-ion batteries from Pylontech, the systems include a compatible MultiPlus-II inverter and a Cerbo GX MK2 from Victron Energy for system monitoring. This allows you to ensure your power supply even in the event of a power outage.

Thanks to its UPS function, the MultiPlus remains powered on even during a grid failure and continues to supply power to the connected loads. The switchover 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 (stand-alone systems)
• Retrofitting of existing PV systems
• Grid-connected power supply
• UPS systems

What does the Offgridtec backup system include?

• Pylontech US3000D 48 V LiFePO4 battery module with 3.55 kWh (2 or 4 modules, depending on selection)
• 1x Victron MultiPlus-II 48/5000/70-50 230V unit combination
• 1x Victron Lynx Distributor
• 1x Victron Cerbo GX MK2 control panel
• 1x Victron GX Touch 50 display panel for Cerbo GX
• 1x 1.8 m VE.Can to CAN-Bus BMS Type A cable
• 1x 3m Victron RJ45 UTP cable
• 1x 1 m Offgridtec battery cable, 50 mm², M8 eyelets
• 1x 200A 70V MEGA fuse
• 2x Pylontech battery connection cable set

The Multiplus device combination is preconfigured to work with Pylontech batteries.

Expanded Use of Your Backup System

To set up an ESS (Energy Storage System) with the backup system, you’ll need one energy meter with a connection cable:

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

With this energy meter, you can set up a grid-tied installation and then monitor your energy consumption and keep track of your energy costs. Thanks to phase compensation, you can also use the 3-phase meter for 1-phase systems. This makes seamless integration of decentralized energy sources and loads into the existing power grid a breeze.

To ensure that an ESS can be included in the preconfiguration, the meter must be purchased in advance or at the same time as the system!

The Storage Solution – Pylontech US3000D Batteries

The US3000D storage unit is a latest-generation lithium battery. It was specifically designed to meet the high demands placed on backup storage systems. Thanks to state-of-the-art technology, maximum safety and a long service life are guaranteed, even with regular deep discharges.

• 95% depth of discharge (DoD)
• Soft start to limit inrush current
• Integrated battery management system (BMS) for monitoring and protecting the battery
• CAN and RS485 interfaces for communication with compatible system components
• More than 8,000 cycles at 25 °C
• Natural cooling without active fans
• Status and state-of-charge display via LEDs

The electronic core—the Victron Multiplus-II unit combination

The Multiplus-II is a high-end system combination from Victron Energy, consisting of a 48V battery charger, inverter, and transfer switch. This combination integrates the classic Multiplus components with an external current sensor and built-in anti-islanding function. This extends the PowerControl and PowerAssist functions to 50A and broadens the potential range of applications to include energy storage systems. The Multiplus is therefore ideal for use as a backup power supply in both grid-tied and off-grid systems.

• 5,000 W power output under non-linear load – 4,000 W continuous load – 9,000 W peak power
• for 48V battery voltage
• 50 A transfer switch
• 70A 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 control center, you can easily control and monitor your system. The flexible connection options maximize your system’s performance. Thanks to the Cerbo GX MK2, you can control your system from anywhere. With the GX Touch 50 display, you always have all your system’s parameters at a glance and can make changes quickly and easily.