






Marstek Saturn C - B2500
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.
-
Plug the battery into your solar setup
Connect the Saturn C to your microinverter using standard MC4 connectors. -
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. -
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.
-
Monitor and control via app
Track charge status, set energy usage preferences, and view savings. All from your phone. -
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.
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.
-
Plug the battery into your solar setup
Connect the Saturn C to your microinverter using standard MC4 connectors. -
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. -
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.
-
Monitor and control via app
Track charge status, set energy usage preferences, and view savings. All from your phone. -
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.
Choose options







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.
-
Plug the battery into your solar setup
Connect the Saturn C to your microinverter using standard MC4 connectors. -
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. -
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.
-
Monitor and control via app
Track charge status, set energy usage preferences, and view savings. All from your phone. -
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.

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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