Description
Introductory Offer: €1,599 until August 31!
From September, the price will increase to €1,699. Secure yours now & save!
We are proud to be among the first companies in Germany to launch the Marstek Venus E 3.0. Pre-sale starts on August 18 at a special introductory price of only €1599. Shipping starts on August 25th.
The Marstek Venus E 3.0 represents the latest generation of home batteries – smaller, lighter, and more efficient than ever before. With a sleek aluminum housing, dual RJ45 ports, and seamless scalability, this 5.12kWh Plug-in Home Battery is the perfect choice for households seeking reliable and future-proof energy storage.
Key Features
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5.12kWh capacity – suitable for households and balcony PV systems.
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Compact & lightweight design – 38.5% smaller than Venus E 2.0, easy to install (63kg).
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Premium aluminum housing – durable die-cast enclosure for extra safety.
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Dual RJ45 connections (RS485 & Ethernet) – faster and more stable LAN communication than WiFi.
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Integrated circuit board – 50% less wiring, +5% higher efficiency.
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Up to 2500W AC input & output power – reliable backup supply.
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Expandable – connect up to 3 units per phase (15.36kWh single-phase, up to 48kWh in 3-phase setups).
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6000+ charge cycles – long-lasting LiFePO4 battery technology.
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Warranty: 10 years | Service life: 15 years.
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Indoor & outdoor use (IP65 rated).
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Plug & Play installation – no complex technical knowledge required.
Venus E 2.0 vs Venus E 3.0 – What’s New?
| Feature | Venus E 2.0 | Venus E 3.0 |
|---|---|---|
| Design | Larger, heavier, steel housing | 38.5% smaller, aluminum housing |
| Connections | Single 5-pin RS485 | Dual RJ45 (RS485 + Ethernet) |
| Efficiency | More cabling | Integrated PCB: 50% less cabling, +5% efficiency |
| Mobility | Wheels & handles | Compact wall-mounted design |
| Compatibility | Works with PV systems | 100% PV compatibility, LAN stability |
| Expandability | Limited scaling | Up to 15.36kWh per phase / 48kWh in 3-phase setups |
👉 The Venus 3.0 is more compact, smarter, and delivers higher efficiency than the Venus 2.0.
Who Is It For?
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Households with solar panels – store surplus solar power and reduce grid reliance.
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Apartments / balcony PV users – compact design, perfect for small spaces.
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Businesses (SMEs) – cut energy bills by storing low-tariff energy and using it during peak hours.
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Off-grid living – combine with solar panels for independent energy supply.
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Energy traders – participate in the energy market with Marstek EMS system.
Why Choose Marstek Venus E 3.0?
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Future-proof design with AI-powered EMS management.
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0-feed-in option with smart meter for regulatory compliance.
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Save up to €1257 per year on energy costs.
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Compatible with Venus E 1.0 and 2.0 – expand without replacing your system.
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Modern appearance that fits contemporary homes.
❓ FAQ
Q1: Can the Venus E 3.0 work with balcony solar systems?
Yes, it is fully compatible with balcony PV and small rooftop systems.
Q2: How much can I expand the system?
You can connect up to 3 batteries per phase (15.36kWh) or 48kWh in a 3-phase setup.
Q3: How long does the battery last?
The LiFePO4 battery offers 6000+ charge cycles, with a 10-year warranty and 15-year lifespan.
Q4: Is installation complicated?
No, the Venus 3.0 features Plug & Play installation, suitable even for non-professionals
