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Marstek Venus E 3.0 - 5.12 kWh

Sale price€1.898,00

Free shipping to mainland Spain, Portugal and the Balearic Islands. Pre-sale now open, shipping starts on September 15.

The Marstek Venus E 3.0 is a powerful plug & play battery designed to work seamlessly with your solar kit.

With 5.12 kWh of capacity and up to 2,500 W on and off-grid output, it helps you store solar energy, save on electricity bills, and power your home during outages.

  1. Plug the battery into any socket
    Plug the Venus E 3.0 into a standard outlet.
  2. Connect the battery to the Marstek app
    Download the Marstek app and pair your battery. This gives you full access to energy monitoring and settings.
  3. Choose how to manage charging
    Select your preferred charging mode in the app:
    • Manual: Set charge and discharge times manually.
    • Smart meter (optional): Connect the smart meter to detect solar feed-in and enable automatic charging from your solar kit.
  4. Monitor and control via app
    Check charge levels, set usage schedules, and switch between solar or grid charging. All from your phone.
  5. Power your home even during an outage
    Run multiple devices at once during an outage. The Venus E 3.0 delivers up to 2,500 W in off-grid mode, enough to keep your fridge, lights, internet, and other essentials running smoothly.
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Marstek Venus E 3.0 - 5.12 kWh
Marstek Venus E 3.0 - 5.12 kWh Sale price€1.898,00

Power through outages

Stay powered even when the grid goes down

Store your extra solar power

Save unused solar energy for later use

Use at least 6,000 times

Engineered for long-term performance

Save money with smart charging

The Marstek Venus E 3.0 helps you cut your energy bills by charging when electricity prices are low and discharging when they’re high. Use solar power during the day and rely on stored energy at night.

Power outage backup

Stay powered during blackouts. With up to 2,500 W of off-grid output, the Venus E 3.0 can keep your essential devices like your fridge, lights, Wi-Fi, and more running . It's your safety net when the grid goes down.

One cable, double function

Charging and discharging happens through the same power cable. Just plug the battery into a regular socket, and it automatically switches between charging and powering your home.

Keep your setup as it is

Forget complex wiring. You don't need to plug your solar panels directly into the battery. Just plug the Venus E 3.0 into your wall socket. You control when it charges or discharges via the app, or let the smart meter automate it for you.

Instant setup – no need to wire your solar kit

Use an existing or new solar kit

Already have a solar kit? Great. If not, pick the one that fits your space: rooftop, balcony, or garden, it doesn’t matter. The battery works without being wired to the panels.

Plug in the battery

Connect the Venus E 3.0 to any standard socket in your home. That’s it. Charging and discharging happen automatically: no tools, no technician.

Track and optimize your energy

Use the app to monitor your solar production, adjust charging times, and maximize your energy savings with just a few taps.

📄 Product documents

Google rating display Robinsun

What our clients say about us!

5 stars rating

Andrea V.

Professional, competitive, fast response and stock available for delivery!

5 stars rating

Marco M.

One of my best decisions! Savings, clean energy, quick assembly and qualified, punctual and very available professionals! Thank you very much for everything! I highly recommend this option! Thanks @Robinsun

5 stars rating

Artur C.

From shipping to the attention during installation they were excellent. Very easy to install and monitor!

5 stars rating

Steve

Good communication . Questions answered .
Solar panel arrived safe and works well.

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Frequently Asked Questions