
About this product
The Marstek Venus E 3.0 (also called Venus E V3, V3.0 or E3) is a 5.12 kWh plug & play home battery with LiFePO4 cells. You hang it on the included wall bracket, plug it into an earthed wall socket and link the P1 smart meter dongle (P1-meter) to your smart meter. In about 15 minutes you are storing your own solar p...Read more
The Marstek Venus E 3.0 (also called Venus E V3, V3.0 or E3) is a 5.12 kWh plug & play home battery with LiFePO4 cells. You hang it on the included wall bracket, plug it into an earthed wall socket and link the P1 smart meter dongle (P1-meter) to your smart meter. In about 15 minutes you are storing your own solar power for the evening, without an installer and without changing anything in your electrical panel.
Marstek Venus E 3.0 at a glance
| Capacity | 5.12 kWh (LiFePO4, 51.2 V, 100 Ah); approx. 4.6 kWh usable at 90% depth of discharge |
| Power via a wall socket | 800 W charging and discharging |
| Power on a dedicated circuit | 2,500 W charging and discharging (installation via a quote) |
| Backup power | 2,500 VA on the backup output, briefly up to 3,500 VA |
| Expansion | With the Marstek SmartBox up to 3 batteries per phase: 15.36 kWh on single-phase, 46.08 kWh on three-phase |
| Dimensions and weight | 480 × 153 × 624 mm (w × d × h), 60 kg |
| Protection rating | IP65, indoor and outdoor, from -20 to 55 °C |
| Service life and warranty | More than 6,000 charge cycles; 10-year manufacturer's warranty |
| Efficiency | Up to 93.5% (manufacturer's specification, battery to socket) |
| Connectivity | Wi-Fi, Bluetooth and wired connection; controlled via the Marstek app |
How the Venus E 3.0 works in your home
During the day the battery charges with the surplus power from your solar panels. In the evening and at night it supplies that power back to your home. The P1 meter on your smart meter tells the battery every second what your home is consuming, so it supplies exactly as much as needed and you export nothing to the grid (zero export). If you have a dynamic energy contract, it also charges during the cheapest hours and supplies power during the expensive hours. That works without solar panels too.
In the Netherlands, a battery connected via a wall socket may supply a maximum of 800 W to your home. That covers the base load: fridge, lighting, TV, router and laptop. If you want to use the full 2,500 W, an installer connects the Venus E 3.0 to a dedicated circuit in the electrical panel; that takes about an hour. Work out how much capacity you need with how many kWh of home battery do you need; everything about the 800 W limit can be found in is a plug-in battery allowed.
Connecting in four steps
- Hang the battery on the included wall bracket or place it on the floor, indoors or outdoors (IP65). Lift it with two people: it weighs 60 kg.
- Plug it into an earthed wall socket, preferably on a circuit without heavy consumers.
- Connect the P1 meter (CT003) to the P1 port of your smart meter. No free P1 port? Then choose the CT002 clamp, which goes around the main cable in the electrical panel. Which meter suits you is explained in P1 meter or CT clamp.
- Install the Marstek app, connect the battery via Wi-Fi and choose the mode: self-consumption, charging on a dynamic tariff or your own schedule. In the Netherlands, then register the battery with your grid operator via energieleveren.nl.
Backup power during a power cut
The Venus E 3.0 has its own 2,500 VA backup output. If the grid fails, the appliances you connect to it simply keep working, for example a fridge, router and lighting. The battery does not automatically take over your whole home. If you want circuits in the electrical panel to run on backup power, this is possible with the Marstek SmartBox, connected by an installer. More in backup power with a home battery.
Venus E 3.0, Venus E 4.0 or Venus A?
| Venus E 3.0 | Venus E 4.0 | Venus A | |
|---|---|---|---|
| Capacity | 5.12 kWh | 5.12 kWh | 2.12 kWh per module, up to 12.72 kWh |
| Via a wall socket | 800 W | 800 W | 800 W |
| On a dedicated circuit | 2,500 W | 3,000 W | – |
| Solar panels directly on the battery | No, works with your existing inverter | No, works with your existing inverter | Yes, four MPPT inputs |
| Charge cycles | More than 6,000 | More than 10,000 | See product page |
| Choose this if | You want a complete 5 kWh battery that you connect yourself | You want more power or the latest model | You want to start small and expand module by module |
The differences between the 3.0 and the 4.0 are covered in detail in Marstek Venus E 3.0 vs 4.0. You can find all models from the brand under Marstek home batteries.
What's new compared to the Venus E V2?
- Slimmer and lighter: 153 mm deep and 60 kg, without the wheels and handles of the V2. Made to hang on the wall.
- Wall bracket included as standard.
- More stable connection: in addition to Wi-Fi and Bluetooth, a wired connection for the app and an external energy manager.
- Expand with the SmartBox: up to 3 batteries per phase, up to 46.08 kWh on a three-phase connection.
- Works with earlier versions in the same Marstek app.
What's included
- Marstek Venus E 3.0 home battery, 5.12 kWh
- Wall bracket for wall mounting
- Connection cable with plug for the wall socket
- Your choice: P1 meter (CT003), CT002 clamp, or no meter if you already have one
- The Marstek app, no subscription
Buy the Marstek Venus E 3.0 from Multi-Solar
Multi-Solar is an official Marstek dealer and has been selling home batteries from Rotterdam since 2022. We deliver the Venus E 3.0 within the Netherlands for €49.99, within 3 to 5 working days, and in the Netherlands you only pay on delivery. Free collection (pick-up) is also possible by appointment at Osakastraat 17 in Rotterdam. We handle the 10-year manufacturer's warranty ourselves. Unsure which model to choose, or want it connected to a dedicated circuit? Request a quote or call +31 10 261 33 86.
Specifications
- Model
- Marstek Venus E 3.0 (V3)
- Battery type
- LiFePO4 (lithium iron phosphate), 51.2 V, 100 Ah
- Capacity
- 5.12 kWh (depth of discharge 90%)
- Service life
- > 6,000 charge cycles
- Efficiency
- max. 93.5% (manufacturer's specification)
- AC input
- 2,500 W
- On-grid output
- 800 W via wall socket, 2,500 W on a dedicated circuit
- Backup output
- 2,500 VA (briefly 3,500 VA)
- Connectivity
- Wi-Fi, Bluetooth and wired connection
- Protection rating
- IP65, -20 to 55 °C
- Dimensions
- 480 × 153 × 624 mm (w × d × h)
- Weight
- 60 kg
- Warranty
- 10-year manufacturer's warranty
How to connect it
- Plug into a wall socketPlug it into an earthed wall socket and you're done. The battery then charges and supplies up to 800 W, the limit that applies to wall sockets in the Netherlands.
- Full power on a dedicated circuitIf you want 2,500 W, an installer connects the battery to a dedicated circuit in the electrical panel. A job of about an hour.
- P1 meter or CT clampThe Marstek P1 meter (CT003) goes on the P1 port of your smart meter. No P1 port? Then the CT002 clamp measures around the main cable in the electrical panel. You choose when ordering.
- Connectivity and mountingWi-Fi or the UTP connection for the app. The wall bracket is included and it can be hung indoors and outdoors (IP65).
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.
On a dedicated circuit the Venus E supplies and charges at 2,500 W. It then also absorbs the large peaks and fills up faster during cheap hours. During a power cut, the backup output supplies 2,500 W to the appliances you connect to it.
- Wall socket plug in yourself 800 W Base load: fridge, lighting, TV, laptop, router
- Dedicated circuit by an installer2.500 W Also washing machine, oven or induction from the battery. Charges at 2.500 W
- Power outage backup power output 2.500 W Connected devices keep running
What this battery can do
- Smart charging on a dynamic tariffCharges when electricity is cheap, supplies when it is expensive
- Zero exportWith the P1 meter it supplies exactly what you use, nothing goes back to the grid
- Backup powerUp to 2,500 W via the backup output during a power cut
- ExpandableUp to 3 batteries per phase: 15.36 kWh on single-phase, 46.08 kWh on three-phase
- EMS integrationReady for energy management and the energy market
- Indoors and outdoorsIP65, wall bracket included
- Wi-Fi and UTPStable connection to the app, even in the meter cupboard
- More than 6,000 cyclesLiFePO4 cells, 10-year warranty
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?
How long does the battery last?
Can I have the battery charge on a dynamic energy contract?
What warranty do I get?
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.