FoxxESS ECM is a high-performance, scalable battery storage system. The modular design allows for maximum flexibility, making it suitable for a broad range of storage applications.
Power Your Home with Intelligent, Scalable Storage
The FoxESS Energy Cube ECM2900 Master battery sits at the heart of a next-generation, high-voltage storage system. Delivering 2.88 kWh of usable capacity and a 90% depth of discharge, it gives you reliable, round-the-clock power from your solar array. Built on safe, long-life LiFePO₄ chemistry and rugged enclosures, it performs consistently across a wide temperature range—helping you make the most of every kilowatt-hour .
Seamless Scalability to Fit Any Home
Start with a single ECM2900 Master and grow as you need. Each Master can pair with up to six ECS2900 Slaves—each adding another 2.88 kWh—bringing total system capacity up to 20.16 kWh. This plug-and-play, stackable design cuts installation time and lets you invest in additional storage exactly when you’re ready .
Advanced Smart Management & Integration
An integrated Battery Management System (BMS) constantly monitors cell voltage, temperature, and state of charge, while CAN/RS485 communication ensures seamless compatibility with FoxESS hybrid inverters. Through the Fox Cloud platform and mobile app, you gain real-time visibility into generation, storage, and consumption—plus remote diagnostics and over-the-air firmware updates to keep your system optimised .
Reliable Backup & Peace of Mind
When the grid goes down, the ECM2900 system switches to backup mode in milliseconds—powering your essential circuits without interruption. Engineered with multiple safety protections (over-charge, over-discharge, over-temperature) and backed by FoxESS’s solid warranty, it delivers resilient, clean energy you can trust for years to come.
The FoxESS Energy Cube ECM2900 Master battery sits at the heart of a next-generation, high-voltage storage system. Delivering 2.88 kWh of usable capacity and a 90% depth of discharge, it gives you reliable, round-the-clock power from your solar array. Built on safe, long-life LiFePO₄ chemistry and rugged enclosures, it performs consistently across a wide temperature range—helping you make the most of every kilowatt-hour .
Seamless Scalability to Fit Any Home
Start with a single ECM2900 Master and grow as you need. Each Master can pair with up to six ECS2900 Slaves—each adding another 2.88 kWh—bringing total system capacity up to 20.16 kWh. This plug-and-play, stackable design cuts installation time and lets you invest in additional storage exactly when you’re ready .
Advanced Smart Management & Integration
An integrated Battery Management System (BMS) constantly monitors cell voltage, temperature, and state of charge, while CAN/RS485 communication ensures seamless compatibility with FoxESS hybrid inverters. Through the Fox Cloud platform and mobile app, you gain real-time visibility into generation, storage, and consumption—plus remote diagnostics and over-the-air firmware updates to keep your system optimised .
Reliable Backup & Peace of Mind
When the grid goes down, the ECM2900 system switches to backup mode in milliseconds—powering your essential circuits without interruption. Engineered with multiple safety protections (over-charge, over-discharge, over-temperature) and backed by FoxESS’s solid warranty, it delivers resilient, clean energy you can trust for years to come.
2.9kWh
Battery Modules
EPS Compatible
1-6 FoxESS
Modules in Parallel
2.9kWh to 17.4kWh
Capacity per Stack
FoxESS ECM Install Process
We have a refined and perfected 5 step process for every installation. Powergy project managers follow this process meticulously to ensure your install runs smoothly. Along with this, all staff are trained to use a custom-built customer management system, ensuring all documents, regulations and policies are completed and adhered too.
Browse through our website, familiarise yourself with the services and complete your initial research.
Choose the right option for you, from an extensive range of tier one products.
Have your proposed installation submitted to your local DNO for G98 notification or G99 approval.
Sit back & relax whilst our expert team complete your installation. Ask away if you have any questions.
Your new system is monitored by our office staff and if you have any issues, our aftercare team are on hand to help.
- 2-4 Week Lead Time
- Accredited, Employed Installers
Get a FoxESS ECM System today
Have confidence in a local installation company. Our installers are fully accredited and employed by us, directly. By submitting your a few details, our in-house designers can get to work proposing the best panel configuration for your roof space. Powergy staff utilise industry-leading 3D software to ensure accuracy when designing. Following this, a site survey will be arranged to discuss cable routes, equipment location and run through any questions you may have.