DC Battery System Liquid-Cooled Energy Storage 418KWh
Model: Hbowa-UTL-373/ Hbowa-UTL-418
Rated Energy: 373/418kWh@0.5C
Suggested PCS Power: 180KW/209KW
Cooling: Liquid-cooling / Protection: IP55
Cell Capacity: 280/314Ah
Certificates: IEC 62619, UL 1973, UL 9540A,
and more for worry-free permitting.
Description
Optimize Your Solar System with DC Battery System
The HB-UTL Series is a high-voltage DC battery system designed for seamless integration with solar PV systems. With advanced liquid cooling technology and high-efficiency LFP battery modules, this outdoor battery cabinet delivers reliable energy storage for C&I applications.
As a DC-coupled solution, it connects directly to the solar array and external PCS, minimizing energy loss during conversion and maximizing system efficiency. Ideal for peak shaving, load shifting, and backup power, the battery system enables smarter energy use in modern renewable energy systems.

Key Features of Our DC Battery System
Optimized for Solar + Storage:
Directly connects to PV arrays in a DC-coupled architecture, avoiding unnecessary AC conversions.High Energy Capacity:
Up to 418kWh @ 0.5C, supporting high-power applications up to 209kW.Liquid Cooling Technology:
Maintains uniform cell temperature, enhancing safety, performance, and system lifespan.Smart Integration:
Communicates via CAN & RS485, compatible with most EMS platforms.Outdoor-Ready Design:
IP55-rated enclosure with compact footprint, perfect for outdoor installation.Safe & Reliable:
LFP chemistry with comprehensive certifications including UN38.3, UN3536, IEC62619, UL1973, and UL9540A,etc.
How DC Battery System Works
In a DC battery system, solar panels generate direct current electricity, which flows through an MPPT charge controller and is stored directly in the DC battery system without AC conversion. When needed, the stored energy is sent to a bidirectional PCS (Power Conversion System) that converts it into AC power for use by the grid or on-site loads. This setup minimizes conversion losses and maximizes overall system efficiency.


Support Parallel Connection
The 418 kWh commercial energy storage battery supports connecting units in parallel to get a large capacity that meets your project needs. Configuration is flexible and can be switched to on-grid, and off-grid working modes.
Typical Use Cases
C&I rooftop or ground-mount solar + storage
EV charging plazas requiring high-power buffering
Microgrids in remote mining, telecom, or island grids
Utility-scale renewable integration and frequency regulation

Services We Support
Our energy storage systems feature modular and intelligent designs. All units are fully assembled and tested before shipment. We have dedicated after-sales teams in Southeast Asia and Europe. Once the storage batteries arrive at your project site, you can follow our installation guide to complete the setup yourself. If needed, we also provide free remote support for installation and commissioning, or paid on-site technical services.

Technical Data
- DC battery system Parameters
| Specification | HB-UTL-418 | HB-UTL-373 |
|---|---|---|
| Energy Capacity | 418kWh @ 0.5C | 372.7kWh @ 0.5C |
| Rated Output | Max 209kW | Max 186kW |
| Voltage Range | 900–1500V DC | 900–1500V DC |
| Battery Type | LFP | LFP |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Communication | CAN, RS485 | CAN, RS485 |
| Protection Rating | IP55 | IP55 |
| Dimensions (mm) | 1300×1300×2365 | 1300×1300×2365 |
| Weight | ~4100kg | ~4000kg |
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373 kWh DC Battery System






































