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Marstek Saturn C - B2500

Sale price€798,00 Regular price€898,00

Promo -20%(Saturn C + SM + Performance 800) Code: SATURN800

Promo -20%(Saturn C + SM + City 800) Code: SATURN800

Free shipping in mainland Spain, Portugal and Balearic Islands. Estimated delivery time: 3–4 weeks from the date of order.

The Marstek Saturn C – B2500 is a smart plug & play battery designed to enhance any balcony solar kit.

With 2.24 kWh of capacity and up to 800 W output, it stores solar energy, lowers your electricity bills, and powers key appliances even after sunset.

Use it with or without a smart meter. The choice is yours.

  1. Plug the battery into your solar setup
    Connect the Saturn C to your microinverter using standard MC4 connectors.
  2. Connect the battery to the Marstek app
    Download the Marstek app and pair your battery. This gives you full access to real-time monitoring and control.
  3. Choose how to manage energy use
    Select your preferred usage mode in the app:
    • Manual: Set your usage schedule manually.
    • Smart meter (optional): Enable intelligent energy storage based on live consumption data.
  4. Monitor and control via app
    Track charge status, set energy usage preferences, and view savings. All from your phone.
  5. Power your essentials after dark
    The Saturn C delivers up to 800 W output, enough to run lights, a router, and other key devices using stored solar energy at night.
Smart Meter:

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Marstek Saturn C - B2500
Marstek Saturn C - B2500 Sale price€798,00 Regular price€898,00

Power through nights

Stay powered even when the sun 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

Store unused solar energy all day long

During daylight hours, the Marstek Saturn C stores every bit of solar power your kit produces and you don’t immediately use. Instead of sending it to the grid, the battery stores the surplus energy, ensuring nothing goes to waste.

Enjoy your stored power after dark

As soon as the sun goes down, the stored energy is released, keeping your essential devices running through the night. The micro inverter seamlessly delivers this stored electricity back to your household circuits.

Quick and easy installation

The Marstek Saturn C can be installed by simply connecting your solar panels to the Marstek battery and the Marstek battery to the microinverter.

The installation doesn't require more than a few minutes, as you don't need to modify your electrical system.


Enjoy solar energy 24/7

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.

Connect the battery

Connect the Saturn C - B2500 to your solar kit. 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.

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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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