FoxESS ECS CQ7 Battery Stack
FoxESS Co., Ltd.
Very good — Very Good
How it scores, by category
The verdict
In our Performance & Value class, FoxESS Co., Ltd. FoxESS ECS CQ7 Battery Stack leads on safety & chemistry. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.
System note
Disconnected system — this battery pairs with the FoxESS H3-Pro hybrid inverter as separate wall-mounted units. FoxESS's all-in-one alternative is the PowerQ. The CQ7/H3-Pro combination is the incumbent 'disconnected type' system and may be approaching retirement as FoxESS shifts strategy toward integrated products.
Source: https://www.fox-ess.com/product/energy-storage/ · scoring methodology by Solar Analytica.