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- EU & US Overseas Warehouses: Significantly reduced shipping times and customs clearance support for your regional projects [citation:2].
- Transport Advantages: Shipments via DHL, FedEx, or Sea Freight with tracking and customs assistance provided [citation:2].
- Fast Lead Time: Standard orders ship in 7-15 working days, ensuring your production line never stalls [citation:12].
- Certified Quality: CE, RoHS, and FCC certified with independent IP rights and multiple patents [citation:2].
High Voltage Slave 6U LiFePo4 Battery Boxs & Racks
Discover the professional-grade modular foundation for your high-voltage C&I energy storage projects. The JKESS HV Slave Box Kits are crafted for integrators who require precision, reliability, and flexibility. These sheet metal kits are delivered without cells, allowing you to integrate your preferred LiFePo4 cells while leveraging our advanced Active Balance Slave BMU technology.
Get a Quote NowSelection: 6U (with CCS) & 4U (with Harness)
We offer two configurations to match your specific production needs. Both options utilize the robust JKESS sheet metal architecture and support the master-slave communication topology.
| Configuration | Features | Cooling | Core Component |
|---|---|---|---|
| 6U HV Slave Battery Box Kits + CCS | - Integrated CCS Wire Harness for quick assembly. - High rigidity 6U standard chassis. - Intelligent Air Cooling / Controllable Fan. |
1x Fan (Ventilation) | Active Balance Slave Control Unit (BMU-H5-16) |
| 4U HV Slave Battery Box Kits (No CCS) | - Compact 4U form factor. - Equipped with Voltage Acquisition & Temperature Control Harness. - Suitable for custom internal wiring designs. |
1x Fan (Ventilation) | Active Balance Slave Control Unit (BMU-H5-16) |
*Battery cells are not included. These are hardware kits intended for B2B integrators.
Application Scenarios
Commercial & Industrial (C&I)
Perfect for small to medium manufacturing facilities, cold chain logistics, and commercial buildings seeking peak-valley arbitrage and demand charge reduction.
PV Coupled Projects
Maximize self-consumption rates in rooftop PV projects. The high voltage architecture allows for seamless integration with modern inverters.
Weak Grid & Backup
Ensures millisecond-level on/off-grid switching for industrial parks, tourist resorts, and critical equipment to prevent production loss during outages.
Addressing High-Voltage Market Pain Points
In the fast-evolving HV storage market, integrators face significant challenges. While high-voltage systems (above 400V) offer higher efficiency and lower current losses, scaling up consistently is difficult without reliable hardware.
| Market Pain Point | JKESS Solution |
|---|---|
| Inconsistent voltage measurements leading to SOC/SOH errors | ±4mV high-precision AFE chips with active balancing for consistent data. |
| Safety risks from temperature anomalies | Up to 57-channel NTC sensing for comprehensive thermal management across the pack. |
| Long customization cycles and after-sales response delays | One-stop service from standard supply to custom engineering with full lifecycle support. |
| Compatibility issues with existing 1000V systems | Our BMU architecture supports up to 1000V stacks, ensuring seamless integration. |
| High current efficiency losses | High-voltage topology reduces current, minimizing cable losses and heating. |
Core Advantages: Active Balance Slave BMU
The core of this kit is the BMU-H5-16. Unlike passive balancing which burns excess energy as heat, our active balance technology effectively transfers energy between cells to extend battery pack life.
±4mV Voltage Accuracy
High-precision detection over the full temperature range ensures reliable cell monitoring for high-voltage energy storage systems.
100mA Active Balancing
Effectively minimizes cell voltage differences, greatly extending battery life and preventing premature aging.
High Insulation & EMC
AC 3100V withstand voltage with EMC compliance ensures safety in high-voltage environments.
Ultra-Low Standby Power
Static power consumption below 1W reduces system self-discharge and improves overall efficiency.
Market Utilization: High-voltage systems are the standard for modern C&I storage due to lower currents, reduced cable cross-section, and compatibility with mainstream high-power inverters. This kit is designed to meet that global standard.
Why Choose JKESS: Global Logistics Support
With growing demand in Europe and America, we understand the importance of supply chain reliability. JKESS provides fast access to your components.
Frequently Asked Questions (FAQ)
1. Does this kit include LiFePo4 battery cells?
No. This is a "Sheet Metal Kit" (6U/4U Box) designed for B2B integrators. It includes the enclosure, BMU, and wiring harnesses, but cells must be purchased separately.
2. What is the difference between the 6U and 4U kits?
The 6U kit comes with an integrated CCS (Cell Contacting System) and includes the fan. The 4U kit does not have the CCS but is equipped with voltage acquisition and temperature control harnesses for custom wiring.
3. What is the maximum voltage system compatible with this hardware?
The system supports up to a 1000V architecture, compliant with GB/T 34131-2023 standards.
4. What is Active Balancing and why does it matter?
Active balancing moves energy from high-cells to low-cells, rather than burning it as heat. This reduces cell inconsistency, extends cycle life, and allows for fast charging.
5. What is the voltage accuracy of the Slave BMU?
The BMU-H5-16 provides ±4mV voltage acquisition accuracy across the full temperature range.
6. How does the master-slave communication work?
It uses a standard CAN interface (2x) and RS485 (2x) for daisy-chaining between slave units and the master BCU.
7. What are the supported temperature ranges?
Operating temperature is -25℃ to ~85℃ (Charging/Discharging), with cold storage capabilities down to -40℃.
8. Is the fan cooling controllable?
Yes. It features Intelligent Air Cooling with controllable fan cooling driven by the communication board based on temperature feedback.
9. Do you support custom firmware and harness customization?
Yes, we support CAN bus firmware upgrades and custom protocol support, as well as harness length customization.
10. How long is the lead time for EU/US delivery?
With our EU and US overseas warehouses, local lead times are drastically reduced. For standard orders, global shipping is 15-20 working days.
Industry Insights & Market Trends
Stay ahead of the curve with the latest in high-voltage storage technology:
pv magazine: Global Solar & Storage NewsEnergy Storage News: C&I Market AnalysisIEC International Standards: Safety & PerformanceEPA: Environmental Regulations for Battery RecyclingReady to Build Your HV Energy Storage System?
Contact our engineering team for tailored support and a competitive quote.
Email: [email protected]
