Offgridtec Backup Kit Retrofit Kit 61.4 kWh with Pytes E-Box 48100R-TE+ Battery Victron Multiplus II 48/10000 3-Phase with Electricity Meter

Offgridtec’s 3-phase backup systems are ideal for emergency power supply or for expanding an existing solar system. In addition to lithium-ion batteries from Pytes, the systems include compatible MultiPlus-II inverters and a Victron Energy Cerbo GX MK2 for system monitoring. This allows you to ensure your power supply even in the event of a power outage.

Depending on your selection, the Pytes batteries provide a storage capacity ranging from 61.44 kWh to 71.68 kWh, allowing you to use your energy efficiently and remain self-sufficient for longer periods when needed. Thanks to its extensive capacity, the system is perfectly suited for large solar installations. The MultiPlus’s UPS function ensures that power to connected loads is maintained even in the event of a grid failure. 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
• Perfectly suited for large solar installations
• 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?

• Pytes E-Box 48100R-TE+ 5.12 kWh 51.2V LiFePO4 battery (12 or 14 units, depending on selection)
• 3x Victron MultiPlus-II 48/10000/140-100/100 230V
• 2x Victron Energy Lynx Distributor
• 2x Victron Energy Lynx Power In
• 1x Victron Cerbo GX MK2 communication hub for system monitoring
• 1x Victron GX Touch 50 display panel for Cerbo GX
• 2x Set of 5 Offgridtec MEGA Fuses 200A 70A
• 1x Pytes Data Cable, Battery to Victron Inverter, 3.5 m, MultiPlus 2
• 6x Pytes battery-to-inverter power cable, 2 m, positive
• 6x Pytes battery-to-inverter power cables, 2 m, negative
• 2x 0.9 m Victron RJ45 UTP cable
• 1x Victron MK3-USB VE.Bus to USB Interface
• 6x Offgridtec® 2 m battery cables, 50 mm², with M8 eyelets on both ends

If selecting a power meter

• 1x Victron VM-3P75CT electricity meter, 75 A/phase, 3-phase
• 1–2x 3 m Victron Energy RJ45 UTP cables

Expanded Use of Your Backup System

The backup kit is available with or without a Victron electricity meter and cables. However, an electricity meter is absolutely necessary for setting up an energy storage system.

With this electricity meter, you can set up a grid-tied installation and then monitor your energy consumption and energy costs. Thanks to phase compensation, the 3-phase meter can also be used in 1-phase systems. This enables the seamless integration of decentralized energy sources and consumers into the existing power grid.

Who is the Backup Kit suitable for?

Thanks to its high storage capacity, the Offgridtec backup system is ideal for use in large solar installations.

• Residential households: Large family homes and apartment buildings, to meet daily energy needs and keep essential appliances running during power outages.
• Commercial businesses: Retail stores and construction sites, to maintain operations during power outages and avoid financial losses.
• Agriculture: Farmers can use it to reliably operate irrigation systems and electric machinery, even in remote areas without access to the grid.
• Municipalities and emergency management: Indispensable for public services and emergency centers to ensure a reliable power supply during crises.

The Energy Storage Solution – Pytes E-Box-481000R-TE+

The Pytes E-BOX 48100R TE+ is a LiFePO4 energy storage system with a capacity of 5.12 kWh that stands out for its high safety standards, well-thought-out design, and consistent performance during continuous operation. The compact, maintenance-free battery can be installed quickly and expanded into larger storage systems through parallel connection. Ideal as a reliable foundation for your custom storage project.

Technical Specifications

• Battery chemistry: Lithium iron phosphate (LFP)
• Nominal voltage: 51.2 V
• Voltage range: 47.5–57.6 V
• Rated capacity: 100 Ah
• Rated energy: 5.12 kWh
• Max. charging current: 50 A
• Max. discharge current: 50 A
• Charging temperature: 0–50°C
• Discharge temperature: -10–50°C
• Efficiency: ≥95%
• Communication protocol: RS-232, RS-485, CAN
• Cycle life: >6,000 cycles at 90% DoD
• Dimensions: 440 x 620 x 117 mm
• Weight: 51 kg

The Electronic Core – the Victron Multiplus-II System

The Multiplus-II is a high-end unit combination from Victron Energy that combines classic Multiplus components with an external current sensor and integrated anti-islanding function. This extends the PowerControl and PowerAssist functions to 100 A and broadens the potential range of applications to include ESS applications.

• 10,000 W power output under non-linear load
• 8,000 W continuous power and 18,000 W peak power
• for 48 V battery voltage
• 100 A transfer switch
• 140 A battery charger
• Output voltage: 230 VAC, frequency: 50 Hz
• Max. efficiency: 95%
• Protection class: IP22

Remote Configuration and Monitoring

The MultiPlus-II is shipped unconfigured by default. You can find the system configuration guide here. If you would like us to pre-configure the unit for you, we’d be happy to do so for an additional fee. To request this, add the linked item“Offgridtec Pre-configuration” to your cart during the ordering process. In this case, shipping may take 3–5 business days longer until the configuration has been completed.

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

With the Cerbo GX MK2 communication hub, 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 monitor 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.

Safety Note: Have this complete system installed and commissioned only by a qualified electrician.