The Marstek Venus E 4.0 is the latest generation of Plug & Play home battery systems, combining a powerful 3 kW bidirectional inverter, 5.12 kWh LiFePOâ‚„ battery storage, intelligent AI-powered energy management, and an integrated EPS backup power function in one elegant, compact solution.
Thanks to its innovative AC-coupled architecture, the system can be installed quickly without major modifications to the electrical panel. Combined with solar panels, dynamic electricity tariffs, and the intuitive Marstek App, the Venus E 4.0 helps maximize self-consumption and reduce energy costs.
The Venus E 4.0 features a high-performance 3,000 W bidirectional inverter that automatically manages the energy flow between your solar panels, home, battery, and the electricity grid.
This maximizes the use of self-generated solar power and significantly reduces dependence on grid electricity.
During a power outage, the Venus E 4.0 automatically switches to backup mode in less than 10 milliseconds, ensuring uninterrupted power for essential household appliances.
Examples include:
With a usable capacity of 5.12 kWh, the Venus E 4.0 stores excess solar energy generated during the day for use in the evening, at night, or during periods of high electricity prices.
This increases self-consumption while reducing electricity costs.
Perfect for:
Thanks to its innovative AC-coupled 3-in-1 technology, installation is quick and straightforward.
Simply plug it in, configure it using the Marstek App, and start saving energy immediately.
The Venus E 4.0 features an all-new, slim, and elegant design.
Its magnetic front cover conceals all cables and connectors, providing a clean and modern appearance that complements any home.
Benefits:
The integrated millimeter-wave radar automatically detects when someone approaches the battery.
When detected:
When no one is nearby:
This provides an intuitive and energy-efficient user experience.
The intelligent AI software continuously analyzes:
Based on this information, the system automatically determines the most cost-effective charging and discharging strategy.
Depending on energy usage, electricity prices, and local market conditions, annual savings can reach up to €1,509 per year.
The Venus E 4.0 supports Virtual Power Plant (VPP) integration.
This allows the battery to automatically:
Your home battery becomes not only an energy storage system but also a smart investment.
The Venus E 4.0 integrates seamlessly with Marstek portable EV chargers.
The system can automatically:
Using the optional Marstek SmartBox, up to three Venus E 4.0 systems can be connected.
Maximum configuration:
This allows the system to grow alongside your future energy requirements.
The intuitive Marstek App provides full control over your energy system.
Monitor:
Firmware updates and system settings can also be managed remotely.
The intelligent Battery Management System continuously protects the battery against:
This ensures maximum safety and a long operational lifespan.
The Venus E 4.0 uses high-quality 314 Ah Lithium Iron Phosphate (LiFePOâ‚„) battery cells.
Benefits:
For maximum flexibility, the battery supports:
The system also supports integration with third-party Energy Management Systems (EMS) via an open API.
The Venus E 4.0 supports:
Accurate zero-export control maximizes self-consumption while preventing unwanted energy export to the grid.
With an IP65 protection rating, the battery is resistant to:
Operating temperature:
-20°C to +60°C
Suitable for installation both indoors and outdoors.
Thanks to passive natural convection cooling, the Venus E 4.0 operates at less than 30 dB.
Benefits:
✔ 5.12 kWh usable battery capacity
✔ Integrated 3 kW bidirectional inverter
✔ Backup power function (EPS <10 ms)
✔ AI-powered energy management
✔ Potential savings of up to €1,509 per year*
✔ Virtual Power Plant (VPP) support
✔ Smart EV charging
✔ Expandable up to 15 kWh storage and 9 kW output
✔ Plug & Play installation
✔ Wi-Fi, Bluetooth and LAN connectivity
✔ Compatible with Marstek Smart Meter, CT003, Shelly Pro 3EM and P1 smart meters
✔ IP65-rated for indoor and outdoor use
✔ More than 10,000 charge cycles
✔ Service life exceeding 15 years
✔ Ultra-quiet operation (<30 dB)
Choose the next generation of home energy storage with the Marstek Venus E 4.0. Featuring a powerful 3 kW bidirectional inverter, integrated backup power, intelligent AI energy management, and simple Plug & Play installation, it delivers maximum energy savings, greater energy independence, and optimal use of your self-generated solar power.
