Marstek Venus E 4.0 Home Battery 5 kWh – Plug-in Backup Power & AI
Marstek Venus E 4.0 Home Battery 5 kWh – Plug-in Backup Power & AI
- Capacity5.12 kWh
- Bidirectional3 kW
excl. VAT
Shipping to Austria
- Pre-order · expected to ship november 2026
- Shipping to Austria · €150,00 excl. VAT (on a pallet, 47.2 kg) · all countries
- Pick up in Rotterdam · free, by appointment, Osakastraat 17
- Ordering for a company? · log in with your trade account or enter your VAT number in the cart
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About this product
Recommended retail price: €1,699 incl. VAT 🔋5.12 kWh LiFePO4 — 314 Ah premium cells ⚡3 kW backup — switchover in <10 milliseconds 🤖AI optimisation + VPP integration for energy trading 🏠IP65 · <30 dB quiet — suitable for indoor & outdoor use 🔗Expandable to 15 kWh via SmartBox...Read more
Recommended retail price: €1,699 incl. VAT
- 🔋5.12 kWh LiFePO4 — 314 Ah premium cells
- ⚡3 kW backup — switchover in <10 milliseconds
- 🤖AI optimisation + VPP integration for energy trading
- 🏠IP65 · <30 dB quiet — suitable for indoor & outdoor use
- 🔗Expandable to 15 kWh via SmartBox
5.12 kWh
of energy storage with the Marstek Venus E 4.0
The latest generation of plug-in home battery with 3 kW backup power, AI energy management and VPP integration for maximum self-sufficiency.
5.12 kWh Capacity <10 ms EPS Backup 3 kW Power Order now as a pre-order — pay on delivery →
The smartest plug-in home battery
Latest generation with 3 kW backup, AI optimisation and VPP integration. More power, longer service life and smarter energy management.
🔋5.12 kWh LiFePO4 — 10,000+ cycles
Higher capacity for medium-sized and large households. 314 Ah premium cells, rated for more than 10,000 charge cycles; 10-year manufacturer's warranty.
10,000+ charge cycles ⚡3 kW Backup — switchover in <10ms
During a power cut, the Venus E 4.0 switches to backup power in less than 10 milliseconds. Fridge, lighting, router and computers keep running.
Backup power in <10 ms 🤖AI optimisation + VPP integration
Advanced AI analyses weather forecasts, energy prices and consumption patterns. Support for Frank Energie and the imbalance market.
Smart charging on a dynamic tariff 🏠IP65 · as quiet as <30 dB · -20°C to +60°C
Reliable in virtually all conditions. Ultra-quiet for installation in the living room or garage. Magnetic cable cover for a clean, modern look.
IP65 · <30 dB quiet operation ✅Expandable to 15 kWh and 9 kW
Via the optional SmartBox you can connect up to 3 Venus E 4.0 units for a maximum of 15 kWh and 9 kW total power. Grows with your energy needs.
Expandable up to 15 kWhTechnical specifications Venus E 4.0
5.12 kWh Capacity 3 kW Bidirectional <10 ms EPS Backup 10,000+ Charge cycles IP65 Protection class 15 kWh ExpandableComplete Venus E 4.0 set — ready to use
Latest generation with improved technology, backup function and AI management
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Marstek Venus E 4.0 battery
5.12 kWh LiFePO4, 314 Ah cells -
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Wall or floor mounting + magnetic cable cover
Flexible placement, clean look -
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Connection cable + LAN cable
Stable data communication and monitoring -
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Marstek app integration
WiFi, Bluetooth and LAN control -
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Installation manual
Step-by-step manual and support -
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Optional: P1 meter or CT clamp
For automatic zero grid export
Why the Venus E 4.0 is the best choice
Latest technology with proven reliability, backup and 10-year warranty
10 Year warranty Full product warranty CE Certified CE & ROHS compliant 15 kWh expandable Up to 3 units, 9 kW in total Order now as a pre-order — pay on delivery →Frequently Asked Questions
Everything you want to know about the Marstek Venus E 4.0
What is the difference between the Venus E 4.0 and the Venus E 3.0? + The Venus E 4.0 has a more powerful 3 kW inverter (vs. 2.5 kW), a new smart display with millimetre-wave radar, AI energy management, VPP integration and a sleeker design with a magnetic cable cover. More than 10,000 cycles (vs. 6,000+). A significant upgrade in every respect. Does the Venus E 4.0 have backup power? + Yes, during a power cut the system switches to backup power in less than 10 milliseconds with 3 kW of continuous power. Your essential appliances — fridge, lighting, router and computers — keep running. Does the Venus E 4.0 work with dynamic electricity tariffs? + Yes, via the Marstek app or AI automation you charge at cheap tariffs and discharge during expensive peak hours. Compatible with Frank Energie, Tibber and other dynamic suppliers. VPP integration for energy trading on the imbalance market. Is the Venus E 4.0 compatible with my existing inverter? + Yes, the Venus E 4.0 uses AC coupling and is therefore compatible with virtually any existing solar panel system. No inverter replacement or extra cabling needed. Can I expand to more capacity? + Yes, via the optional SmartBox you can connect up to 3 Venus E 4.0 units for a maximum of 15 kWh and 9 kW total power. Ideal if your energy needs grow. When will the Venus E 4.0 be delivered? + This is a pre-order. Expected delivery is November 2026. As an authorised Marstek dealer, we are among the first to receive the new stock — reserve now to be at the front of the delivery batch. Do I have to pay a deposit? + No. You order the Venus E 4.0 now as a pre-order for €1,699 (incl. VAT) and only pay on delivery. There is no deposit. Expected delivery is November 2026. How do payment and delivery work? + You pay nothing in advance: you settle the full amount on delivery. Free delivery in the Netherlands, straight to your door.Ready to lower your energy bill?
Order your Venus E 4.0 now as a pre-order — expected delivery November 2026, you only pay on delivery. As an authorised Marstek dealer, we are at the front of the delivery batch.
Order now as a pre-order — pay on delivery →- ✓ Pre-order available
- ✓ Free delivery in the Netherlands
- ✓ Lowest price guarantee
- ✓ First delivery batch
Specifications
- Capacity
- 5.12 kWh
- Bidirectional
- 3 kW
- EPS Backup
- <10 ms
- Charge cycles
- 10,000+
- Protection class
- IP65
- Expandable
- 15 kWh
How to connect it
- Plug into the wall socketThe Venus E 4.0 is a plug-in battery: the connection cable is included, plug it into an earthed wall socket.
- Full power on a dedicated circuitIf you want 3,000 W, an installer connects the battery to a dedicated circuit in the electrical panel. A job of about an hour.
- P1 meter or CT clampOptional: the Marstek P1 meter on the P1 port of your smart meter, or the CT clamp around the main cable in the electrical panel, for automatic zero grid export.
- SmartBoxWith the optional SmartBox you can connect up to three Venus E 4.0 units, 15 kWh and 9 kW in total.
- Connectivity and mountingWiFi, Bluetooth and LAN (LAN cable included). Wall or floor mounting with magnetic cable cover; indoor and outdoor installation allowed (IP65, from -20 to 60 °C).
When 800 W and when full power?
In the Netherlands, a battery connected via a wall socket may supply a maximum of 800 W to your home. For an average household, that covers the base load: fridge, lighting, TV, laptop and router. If the washing machine, oven or induction hob run at the same time, the rest simply comes from the grid.
The Venus E 4.0 charges and discharges at 3,000 W. That covers the base load of a household and most peaks from the washing machine, oven or induction hob; anything above that, your home draws from the grid.
During a power cut it switches over within 10 ms and supplies 3,000 W of backup power, so the fridge, lighting, router and computers keep running. Via the SmartBox the system grows to 15 kWh and 9 kW.
- Wall socket plug in yourself 800 W Base load: fridge, lighting, TV, laptop, router
- Dedicated circuit by an installer3.000 W Also washing machine, oven or induction from the battery. Charges at 3.000 W
- Power outage backup power output 3.000 W Connected devices keep running
What this battery can do
- Backup power3,000 W, switchover within 10 ms
- AI optimisation and VPPCharges based on weather forecasts and energy prices, ready for Frank Energie and the imbalance market
- Zero grid exportWith the optional P1 meter or CT clamp
- ExpandableVia SmartBox up to three units, 15 kWh and 9 kW
- More than 10,000 cycles314 Ah LiFePO4 cells, 10-year warranty
- Indoor and outdoorIP65, quieter than 30 dB
- WiFi, Bluetooth and LANStable connection to the app
- Wall or floor mountingWith magnetic cable cover
Compare with another plug & play battery
Choose two batteries from our range and compare them side by side with this product.
Questions about this product
Can I connect this battery myself?
How much may I feed back via the wall socket?
How much energy does this battery store?
Can this battery be placed outdoors?
Does it work during a power cut?
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What about the warranty?
When will my order be delivered?
Manufacturer's warranty
The full manufacturer's warranty applies. For a claim, mail info@multi-solar.nl with your order number.
Shipped from Rotterdam
As a parcel or on a pallet, depending on the weight. See the costs per country.
Pick-up in Rotterdam
Free, by appointment, at Osakastraat 17, 3047 AK Rotterdam.