Maximum compatibility
Easily expand your solar power system without modifications or replacing components.
Compatible with any existing PV system
Within 5 seconds, you plug the connector into the socket
and your PV system is upgraded to a home microgrid.
Electricity for your home, savings for you!
Home Energy Storage System
Plug & Play
Plug the cable into the wall socket and the system is ready for use within seconds.
Own solar energy in the evening
Use your own solar energy even after sunset.
Save immediately
Power your home with your own solar energy when the sun goes down.
Marstek Venus E 3.0 – Plug & Play Home Battery 5.12 kWh
Sale price€1.299,00Regular price
€1.900,00
In stock, ready to ship
In stock! Ships within 1-3 business days.
14-day money-back guarantee
10-year warranty
Free shipping
Frequently asked questions
What is a home battery and why should I buy one?
A home battery stores excess energy from your solar panels for later use. This way, you can use more of your own electricity, become less dependent on the grid, and lower your energy costs.
How much can I save with a home battery?
The savings depend on your energy consumption and the output of your solar panels. With a home battery, you use more of your own electricity, which becomes particularly interesting when the net metering scheme changes.
Does the battery work with my solar panels?
Yes, our home battery is compatible with most common solar panels and inverters.
What happens when the net metering scheme changes?
With a home battery, you can continue to use and save your self-generated energy, even when net metering becomes less favourable.
Scalable home energy storage
Expandable to 7.5 kW / 15.36 kWh on single-phase
Save 32%
Marstek Venus E 3.0 – Plug & Play Home Battery 5.12 kWh
Sale price€1.299,00Regular price
€1.900,00
“With four MPPT inputs, the system can utilize up to 4 kW of solar energy.”
— NotebookcheckIn the Press
“Marstek promises annual electricity cost savings of up to €1,797 thanks to AI-powered energy management and anti-backfeeding technology.”
— China GadgetsIn the Press
“It is compatible with existing balcony solar panels and can be charged very quickly via mains power, which is practical in combination with dynamic energy tariffs.”
— Computer BildIn the Press
"This device focuses on what you really need every day: plenty of storage capacity at a competitive price. The inverter is already integrated, so all you need are solar panels.”
— inside digitalIn the Press
“The device can even operate without an app. It also has a touchscreen allowing users to set the export power according to schedules.”
— heise onlineIn the Press
“This device focuses on what you really need every day: lots of storage capacity at a competitive price. The inverter is already integrated, so you only need solar panels.”
— GIGAIn the Press
Award-winning technology
Why Marstek is a Smart Choice
Security for your home• Strict quality standards for each product
• Up to 15 years lifespan with up to 10 years warranty
Use power when you need it• Store solar energy and use it during the day or night
• Reduce grid dependence and lower CO2 emissions
Smart management at your fingertips• Real-time energy monitoring in the app
• Track solar yield, battery status, and household consumption
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Independent creators and reviewers share their practical experiences.