97-218-00035-00 Fox ESS - Standalone Battery Module CS4000 (Slave)

The CS4000 is a LiFePO₄ (lithium iron phosphate) battery slave module within the ECS4000 series. It pairs with a CM4000 controller module to form scalable battery stacks—each CS4000 adds ~3.97 kWh of capacity.

Key Features

• Stackable design, plug and play setup
• High efficiency: 6000+ cycles@90%DOD
• Expandable system, flexible customize to 19.87kWh
• Cable set build-in, no wring cable needed
• IP65, indoor or outdoor installation
• 12.5 years warranty

Key Features

• High Voltage, High Performance: Enables scalable stacks up to ~459.9 V
• Plug-and-Play Design: Snap-fit modules with CAN bus communication simplify installation 
• Safety & Certifications: UL1973, UL9540, UL9540A, UN38.3 certified; outdoor-rated IP65 enclosure
• Long Warranty: 12.5 years standard