Marstek Saturn B2500-D storage for balcony power plant
- Maximum energy savings: Up to 1074 € savings per year on energy costs.
- Durable and reliable: Over 6000 charging cycles and up to 15 years lifespan.
- Quick installation: Plug & Play in just 15 minutes, no technical knowledge required.
- High compatibility: 99 % compatible with solar panels and microinverters (MC4 interface).
- Intelligent control: Real-time analysis and smart meter adjustment via app.
- Strong performance: 2 MPPT, 1600W PV input and 800W DC output for maximum efficiency.
- Robust and safe: IP65 waterproof, 10 years manufacturer warranty.
How does the MARSTEK B2500-D work?
During the day
The electricity generated by the solar panels flows through the B2500-D to the micro-inverter to supply power to your household consumers. This way, you can reduce your dependence on the public power grid and lower your electricity bill. In conjunction with a smart meter, excess solar energy is intelligently stored, so no feed-in occurs.
At Night
The electricity stored in the B2500-D is fed into the grid via the micro-inverter and intelligently supplies the consumers in the household. With a battery capacity of 2.24 kWh (flexibly expandable), the B2500-D can easily meet the power needs of devices such as routers, refrigerators, fans, and more.
Flexible expansion of capacity and PV input
6000+ Charge cycles LiFePO₄ battery
Our LiFePO₄ cell (lithium iron phosphate) is a reliable energy source for your home. With over 6000 charge cycles, it promises to brighten your moments for a decade or longer. And like a guardian angel, its 7-stage safety protection watches over you, ensuring that every charge is a safe embrace. Immerse yourself in a world where technology and humanity meet, and experience an energy that truly cares.
10 Years Warranty
Quality you can rely on, guaranteed for a decade. The B2500 sets a new standard in the field of energy storage with its exceptional durability and performance, backed by our 10-year warranty. Enjoy reliable, worry-free energy for years to come, knowing that your investment is protected.
Efficient and competent support - always by your side. If you choose the B2500, it means more than just owning a top-class energy storage system - it also means that you can rely on an unparalleled level of safety. Our professional technical support team is available to you at any time to ensure a smooth installation and trouble-free operation.| General | |
|---|---|
| Model | MARSTEK B2500-D |
| Capacity | 2240Wh |
| Cell chemistry | LiFePO₄ |
| Life cycles | 6000+ cycles up to 80% capacity |
| Storage temp. | -10°C~55°C |
| Operating temp. | -10°C~50°C |
| Material | ABS + PC + Metal |
| Weight | 20±0.5kg |
| Dimensions | 309 *175 *350mm |
| Battery Management System | OVP, UVP, OCP, SCP, OTP, UTP, etc |
| Wireless | BT5.2 + WIFI 2.4G |
| MC4*2 PV Input | |
| Power | 800W*2 Max. |
| Voltage Range | 12V~59V |
| Max. Input Current | 13.5A*2 |
| MC4*2 Output | |
| Power | 400W*2 Max. |
| Voltage Range | 16V~40V |
| Max. Output Current | 15A Max. |
| Additional Data | |
| Protection degree | IP65 |
| Standards | EN IEC 62109-1/-2, EN IEC 61000-6-1/2/3/4, IEC62619:2022, WEEE, ROHS, REACH |
Lieferung kam ohne genaue Ankündigung und stand einfach vor der Haustür ohne zu klingeln obwohl wir zu Hause waren und die doch wertige Ware hätten problemlos entgegennehmen können.
Der Anschluss und die Inbetriebnahme waren kein Problem, da ich so einen Speicher bereits in Funktion habe. Die dazu gehörige App macht manchmal was sie will, funktioniert aber dann mit etwas Geduld.
Mit dem Speicher bin ich zufrieden und kann ihn nur weiterempfehlen.
Super kompakter Speicher, einfache Montage.
Tolles Service
Funktioniert einwandfrei
Schnelle Lieferung
Funktioniert auch mit Wechselrichter Veska VK-800.
Erkennt den Wechselrichter direkt. Lädt und entlädt wie programmiert. App zeigt die üblichen Werte. Alles gut.
FAQ
Does MARSTEK offer MQTT access?
How to assess whether the signal is strong enough with dBm?
Does a Wi-Fi interruption or signal fluctuation lead to data loss on the device?
What is the after-sales service and warranty policy for the MARSTEK SATURN-C B2500?
How can one ensure that energy storage batteries function properly in winter?
At low temperatures, the activity of lithium batteries decreases, and discharge accelerates. To ensure optimal performance in winter, it is recommended to take the following measures:
1.Set the DOD (Depth of Discharge) to 50%. In extremely low temperatures (e.g., snowy days), it is recommended to set the DOD to 30% to ensure adequate energy storage.
2.If the battery has not been charged for more than a week, it is recommended to stop discharging until the state of charge is back above 90% before reactivating it.
3.For users with additional batteries, it is recommended to fully charge them, turn them off, and store them offline.
4.Avoid deep discharges to prevent the battery from remaining in a low state of charge for an extended period.
5.Check the photovoltaic panels regularly, especially after heavy snowfall, to ensure they are not covered in snow and provide normal power supply.
How do you update the firmware version of the B2500?
To update the firmware version of the B2500, follow these steps:
1. Open the app, go to 'Settings' and select 'Devices'.
2. Click to check the latest firmware version and follow the instructions to complete the update. If you have not received an update notification, please contact our after-sales service team via the 'User Feedback' feature in the app, and we will provide you with the latest version as soon as possible.
How does the B2500 work in different operating modes?
The device has two operating modes:
1. Automatic mode: The device works in conjunction with the smart meters in the same home network and adjusts the grid power output in real-time based on household power data to compensate for household load losses and ensure that the power demand is met.
2. Manual mode: The device provides a fixed grid power output within the time frame set by the user. If no time frame is set, the device does not output any grid power.
Regardless of the mode, the device will automatically feed excess photovoltaic energy into the grid as soon as the battery is full.
What are the requirements for the nominal voltage, the nominal current, and the power? How many solar modules can I install?
The rated voltage of the device is 59V, the rated current is 13.5A. The B2500 offers two input specifications: 1000W and 1600W (New Version). Please carefully read the user manual and select the appropriate solar modules for installation. Ensure that voltage and current do not exceed the rated values. Although the device has protection features against overvoltage and overcurrent, exceeding the rated values can lead to damage or safety risks. If you need to connect more than two solar modules, you may consider using a 'Y' cable.
How does one choose the configuration of the solar modules?
When selecting the configuration for solar panels, the rated voltage (59V) and the rated current (13.5A) of the device should be taken into account.
1. Series Configuration: Connect the positive and negative terminals of multiple solar panels together. The voltage adds up, but the current remains the same. Make sure that the total voltage does not exceed the rated voltage of the device.
2. Parallel Configuration: Connect the positive terminals and the negative terminals of multiple solar panels together. The current adds up, but the voltage remains the same. Make sure that the total current does not exceed the rated current of the device (13.5A).
