FOX ESS

The Fox ESS EQM2900 is the 2.88kWh master battery module within the current EQ high-voltage battery range. It is used as the main control battery in an EQ2900 stack and replaces older ECM2900 references that may still appear in previous listings, quotations or customer searches.

This current EQM2900 version is supplied with Type A connectors, so it is important to check compatibility before adding it to an older battery setup. Fox ESS rates the module at 2.88kWh nominal capacity with 90% depth of discharge, CAN communication and scalable expansion up to 20.16kWh when paired with compatible EQS2900 slave modules.

Designed for straightforward installation and future expansion, the EQM2900 is a strong option for installers and system designers building a modular Fox ESS storage system. It is the correct choice when a project needs the master battery rather than an additional support module.

Why we recommend it: it is the correct current Fox ESS master battery for EQ2900 systems, gives clear compatibility for newer projects, and helps customers searching for older ECM2900 codes find the right replacement.

The Fox ESS EQM4800 is the 4.66kWh master battery for the current EQ4800 high-voltage storage range. It is the main battery module within an EQ4800 stack and replaces older ECM4800 references that may still appear in previous listings, quotations or customer searches.

Current EQM4800 stock is supplied with Type A connectors, so compatibility should always be checked before it is added to an existing system. Fox ESS rates the module at 4.66kWh nominal capacity with CAN communication, scalable expansion up to 41.93kWh and a plug-and-play design for the wider EQ4800 platform.

With its larger per-module capacity, EQM4800 is well suited to projects that want more storage from fewer batteries while keeping future expansion within the same Fox ESS battery family. It is the correct option when the system needs the master battery rather than an expansion-only slave module.

Why we recommend it: it is the correct current master battery for EQ4800 systems, gives a clear replacement route from older ECM4800 codes, and offers a practical starting point for higher-capacity modular battery storage.

The Fox ESS EQS2900 is the 2.88kWh slave battery used to add capacity within the current EQ high-voltage battery range. It is the expansion module for an EQ2900 battery system and replaces older ECS2900 references that may still appear in previous product data, quotations or customer searches.

Current EQS2900 stock is supplied with Type A connectors, so compatibility should always be checked before adding it to an existing installation. Fox ESS rates the module at 2.88kWh nominal capacity with 90% depth of discharge, CAN communication and scalable expansion up to 20.16kWh within the EQ2900 platform.

This makes EQS2900 a practical choice for installers and buyers who want to increase storage capacity while staying within the same Fox ESS battery family. It is the correct option when extra capacity is needed rather than a new master battery.

Why we recommend it: it is the correct current expansion battery for EQ2900 systems, gives a clear upgrade path from older ECS2900 references, and keeps system growth simple within the Fox ESS EQ range.

The Fox ESS EQS4800 is the 4.66kWh slave battery for the current EQ4800 high-voltage storage range. It is the expansion module used to add capacity within a compatible EQ4800 stack and replaces older ECS4800 references that may still appear in previous listings, quotations or customer searches.

Current EQS4800 stock is supplied with Type A connectors, so compatibility should always be checked before adding it to an existing battery system. Fox ESS rates the module at 4.66kWh nominal capacity with CAN communication, scalable expansion up to 41.93kWh and a modular plug-and-play design within the wider EQ4800 platform.

Its larger module size makes EQS4800 a strong option for projects that want to add meaningful storage capacity while staying within the same Fox ESS battery family. It is the correct choice when a system needs extra capacity rather than a new master battery.

Why we recommend it: it is the correct current expansion battery for EQ4800 systems, gives a clear replacement path from older ECS4800 codes, and makes higher-capacity modular battery growth straightforward.

The Fox ESS F3600 3.6kW Single Phase String Inverter delivers exceptional performance and long-term reliability for modern UK solar systems. Designed for residential and small commercial applications, it offers 97.4% peak efficiency and intelligent dual MPPT tracking for maximum energy harvest.

Compact, lightweight, and IP65 rated, the F3600 operates quietly and efficiently in all weather conditions. Built-in Wi-Fi connectivity enables real-time monitoring through the FoxCloud platform, giving users full visibility and control over system performance. Its transformerless design ensures excellent conversion efficiency and simplified installation.

Contact Evergy for product guidance or system compatibility support.

The Fox ESS F5000 5kW Single Phase String Inverter delivers high conversion efficiency and dependable performance for modern UK solar systems. Designed for residential and light commercial installs, it balances power, reliability, and smart monitoring—ideal for 12–20 panel arrays or system upgrades where extra headroom is useful.

As part of the F Series (G2), the F5000 features dual MPPT tracking to maximise yield across mixed roof aspects and shading conditions, with quick start-up and a wide operating range for year-round productivity. The compact, IP65-rated enclosure supports outdoor mounting, while natural convection cooling keeps operation quiet and maintenance low. Integrated Wi-Fi/LAN monitoring via FoxCloud provides clear, real-time visibility of generation and performance trends from anywhere.

Contact Evergy for product guidance or system compatibility support.