Key Features
Engineered for flexibility and performance
Easy Installation
Flexible configuration, plug and play set-up
Flexibility
Modular design, scalable up to 80kWh
Type 4X
Suitable for outdoor installation
Remote Monitoring
Via smartphone app or web portal
SUPERIOR PERFORMANCE
FOX ESS Batteries - Industry-leading efficiency
CEC Efficiency
California Energy Commission rating
Max. Efficiency
Peak system efficiency
Max. Discharge Efficiency
Optimal energy delivery
Product Highlights
Modular Design for Maximum Flexibility
The PowerQ Series features a modular architecture that allows you to scale your energy storage from a single unit up to 80kWh. Start small and expand as your energy needs grow, meeting various backup scenarios without replacing your entire system.
Type 4X Rating for Outdoor Durability
Engineered to last with maximum flexibility and protection. The Type 4X enclosure rating ensures the battery can withstand outdoor conditions including rain, snow, and extreme temperatures, providing reliable performance year-round.
Easy Plug and Play Installation
Flexible configuration with plug and play set-up simplifies installation. Reduce installation time and costs with pre-configured modules that connect seamlessly to your solar inverter system.
Smart Remote Monitoring
Monitor your PowerQ battery system remotely through the FOX ESS smartphone app or web portal. Track energy production, consumption, and battery status in real-time from anywhere.
Benefits & Features
Why choose FOX ESS PowerQ Series
Modular design scalable up to 80kWh
Type 4X rated for outdoor installation
97.6% maximum efficiency
97.4% maximum discharge efficiency
97% CEC efficiency rating
Plug and play installation
Flexible configuration options
Remote monitoring via app or web portal
Compatible with FOX ESS inverters
Durable outdoor enclosure
Meets various backup scenarios
Easy system expansion
Real-time energy tracking
Professional-grade performance
Weather-resistant design
Long-lasting reliability
Stock ships from Barrie, Ontario
System Components
The core PowerQ ecosystem Solar X installs
PowerQ battery modules and ECS4000 battery modules are different battery families and must not be mixed in the same battery stack.
PowerQ AIO Hybrid Inverter
Up to 11.4 kWAll-in-one hybrid inverter with LiFePO4 modules and a Type 4X enclosure. Battery warming for cold climates with a -25 C to 55 C range, natural convection cooling, 97 percent plus efficiency, UL and IEEE certified. Managed through the Fox ESS app and web portal.
EQ4000 Battery Module
3.97 kWhHigh-voltage LiFePO4 battery module for PowerQ AIO systems.
ECS4000 Series
Scalable stacksThe CM4000 controller module houses the BMS and pairs with CS4000 slave modules of approximately 3.97 kWh each for scalable high-voltage battery stacks.
Smart Hub G2
Energy gatewayEnergy management gateway for monitoring and control across the Fox ESS system.
H1-11.4-US Hybrid Inverter
11.4 kWSplit-phase, pre-wired hybrid inverter with 3 MPPT, built-in WiFi, a display with remote monitoring, and an integrated APS and Tigo transmitter.
Specifications are supplied by the manufacturer and are subject to change without notice. Final equipment is confirmed at contract and post inspection design.
Documentation
Datasheets, manuals and warranty information
PowerQ AIO Datasheet
rev V1.5
EQ4000 Datasheet
rev V2.2
ECS4000 Datasheet
rev V1.4
Smart Hub G2 Datasheet
rev V1.9
H1 Series Datasheet
rev V4.2
PowerQ User Manual
with Fox Hub G2, rev V1.0a
ECS4000 User Manual
rev V1.1
US Series Warranty
Warranty policy, 2026-02
Frequently Asked Questions
How large can a PowerQ system scale?
The PowerQ Series is modular and scales up to 80 kWh of total backup capacity, so you can start small and expand as your energy needs grow.
Can it be installed outdoors in Ontario?
Yes. The PowerQ AIO carries a Type 4X enclosure rating and includes battery warming for cold climates, with an operating range down to -25 C, suited to Canadian winters.
Where does the equipment ship from?
Fox ESS stock is held in Barrie, Ontario, which means faster delivery and local support for installations across the province.
Can I mix PowerQ and ECS4000 battery modules?
No. PowerQ battery modules and ECS4000 battery modules are different battery families and must not be combined in the same battery stack. Solar X designs each system with matched modules.
How efficient is the system?
The PowerQ AIO reaches up to 97.6% efficiency with a 97% CEC rating and cools by natural convection with no fans.