Product Description
The CS4000 is a LiFePOâ‚„ (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
Warranty Information
| Warranty | 12.5 Years |
Product Videos
Product Reviews
Documentation
| Datasheet |
Datasheet_Fox_ESS_US-ECS4000-Datasheet-North-America-Warming-V1.3-20250930
|
| User Manual |
User_Manual_Fox_ESS_USA-ECS4000-Manual-V1.1
|
| Quick Guide |
Quick_Guide_Fox_ESS_USA-ECS4000-Guide-V1.1
|
| Certification |
Certification_Fox_ESS_UL9540
|
| Test Report |
Test_Report_Fox_ESS_ECS4000-UL9540A
|
| Warranty |
Warranty_Fox_ESS_US-Series-EN-US-ECS4000-HUB-Warranty-20250707
|
Specs
| Battery Capacity | 4 kWh |
| Battery Chemistry | LiFePO4 |
| Operation Temperature | -25C to 55C |
| Heated | Yes |
| Enclosure Rating | NEMA 4X |
| Certification | UL9540 |
| Tested to | UL9540A |
| Mounting | Floor Mounted |
Shipping Dimensions
| Weight: | 81.50 LBS |
| Width: | 57.00 (cm) |
| Height: | 35.00 (cm) |
| Depth: | 38.00 (cm) |
