Marstek Mars ll
The three-phase all-in-one home battery, expandable up to 6 units for a total capacity of 45.08 kWh
All in one
Integrated three-phase ESS with inverter and energy management
45,08KWH
7.68 kWh per unit, expandable up to 6 units total
Price on request
Smart integration
AI optimization with smart meter, anti-feed-in, and 100% self-consumption
6000+ cycles
LFP technology, long lifespan, and 10-year warranty
An all-in-one three-phase energy system with integrated inverter and expandable storage up to 45.08 kWh. With 15 kW grid connection, 4 MPPT inputs, and safe LFP technology, the MARS II delivers power and reliability. Thanks to intelligent AI control, SG-Ready heat pump integration, and innovative 1000V V-Boost battery technology, it ensures maximum efficiency, long lifespan, and future-proof energy management.
The MARS II is a complete 7-in-1 system with a three-phase inverter, battery, energy management, and smart control in a single housing. Designed for maximum efficiency and simplicity, without separate components or complex integration.
Each 7.68 kWh unit operates independently. If one module fails, the remaining batteries continue to function. Thanks to the modular design, you can easily replace or expand up to 45.08 kWh without downtime or loss of capacity.
In addition to ultra-fast backup (<10 ms) during outages, the MARS II can be connected to a generator. This ensures reliable energy during extended power failures, with intelligent control that minimizes fuel consumption.
The advanced 1000V V-Boost technology prevents battery imbalance and extends lifespan. Combined with safe LFP cells, IP65 protection, and a 10-year warranty, it ensures long-term performance. Thanks to SG-Ready integration, the MARS II can also directly work with your heat pump.
Key specifications
The MARS II goes beyond a standard energy system: it is a modular and future-proof 7-in-1 three-phase ESS. Each battery module operates independently, ensuring the system continues running even if one unit fails, while expansion or replacement can be carried out without interruption. With 15 kW of power, four MPPT inputs, and a total storage capacity of up to 45.08 kWh, the MARS II scales seamlessly with your energy needs.
In addition to power and efficiency, the MARS II offers the assurance of safe LFP batteries with over 6000 charge cycles, a robust IP65 enclosure, and a user-friendly TFT touchscreen. Whether for residential use or more demanding applications, it delivers reliable backup, long lifespan, and full control over your energy supply—supported by a 10-year manufacturer warranty.
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Who is it for
Partner in
energy storage
As an importer and specialist in energy storage, we provide not only reliable products, but also the service and expertise to support you. With MW Energie, you choose quality, continuity, and a partner who thinks along with you.
Learn more about the Marstek Mars II
All-in-one system
Integrated inverter, battery, MPPTs and energy management in one unit.
Delivers 15 kW stable power for residential applications.
With TFT touchscreen and smart controls for full insight and control.
Expandable storage
Each battery delivers 7.68 kWh capacity.
Expand up to 6 units for a total of 45.08 kWh.
Scalable from standard households to high-consumption users.
Bidirectional
The MARS II can not only store energy but also feed it back to your home or the grid for maximum flexibility.
Connect an EV and use your car as an additional battery: charge and discharge up to 15 kW.
AI and smart meters ensure charging and discharging happen at the optimal moment.
Solar energy optimization
Each string is controlled separately to prevent yield losses.
Supports large installations with flexible capacity.
Energy generation from 200 V, from sunrise to sunset.
Smart energy management
Charging and discharging aligned with consumption and dynamic tariffs.
Supports Marstek CT002 and Shelly for maximum control.
Increase self-consumption and reduce energy costs through smart control.
Integration & connectivity
Seamless connection with heat pumps, EVs and smart meters (CT002/Shelly).
WiFi, Bluetooth, Ethernet and RS485 included as standard.
Supports SG-Ready/RS485 for integration with heat pumps.
Seamless integration into EMS and smart home systems.
Applications
Three-phase system ideal for homes with high energy demand.
Always reliable backup during outages, instant and stable.
Suitable for businesses and workshops with heavy loads.
The 4 guarantees of MW Energie
40+ years of experience in energy solutions
We only supply products from brands that have proven their quality. Always with a clear manufacturer’s warranty, so you can invest with confidence.
Whether you are a dealer or an end user, our support team is ready to assist with advice, installation questions, and solutions. Fast, knowledgeable, and personal.
We keep our products in stock ourselves. This allows us to deliver quickly, so you are never dependent on long lead times or uncertain availability.
Our work doesn’t stop after delivery. We remain involved for maintenance, updates, and guidance, ensuring that you and your customers can rely on ongoing support.
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