EP12)

Name: FoxESS EP Battery (EP5 / EP6 / EP11 / EP12)
Brand: FoxESS
Author: JouleSpecs

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Data from official source

Sheet curated by JouleSpecs — We check every spec sheet against the manufacturer's own documentation: each value carries its source and the date we read it. Published Oct. 7, 2026 · Last updated Oct. 12, 2026

FoxESS EP Battery is a high-voltage battery for home energy storage, designed to grow over time: the system expands up to 20.8 kWh by adding modules. It accepts a depth of discharge of 90%, so almost all of the nominal capacity is available for use. It can be installed on the floor or on a wall, depending on the space available at home.

01 · Verified data

Technical specifications

Parameter	Value	Source
Depth of discharge	90 %	Compiled by editorial team
Expandable	Yes	Compiled by editorial team
Maximum expanded capacity	20.8 kWh	Compiled by editorial team
Ingress protection	IP65	Compiled by editorial team

03 · Summary

Pros and cons

In favour

The system expands module by module up to 20.8 kWh, so you can start with less capacity and add more later.
The 90% depth of discharge makes most of the nominal capacity usable.