EN
- Overview
- Related Products
- 1x BMU-H5-52 Main Unit
- 1x 52S Voltage Acquisition Harness
- 1x NTC Temperature Sensor Harness
- 1x Quick Start Guide
- Battery Cells
- Interconnect Wiring Harnesses
- Rack / Cabinet Enclosures
- Master BMS Controller (BCU)
- Verify battery pack voltage (≤ 1000V system)
- Confirm CAN communication wiring
- Check NTC sensor placement
- Ensure proper grounding
- Mount BMU securely in the battery pack
- Connect voltage acquisition harness
- Install NTC temperature sensors
- Connect CAN bus to master controller
- Disconnect power before installation
- Use ESD protection equipment
- Follow local electrical safety codes
- Refer to full installation manual
- Project specification sheet
- Battery pack configuration details
- Communication protocol requirements
- Quantity and delivery schedule
- Firmware tailoring for specific protocols
- Custom harness length and connectors
- Special temperature sensor configurations
- Labeling and packaging preferences
- Sample orders: 15–20 working days
- Bulk orders: 25–30 working days
- Global shipping via DHL / FedEx / sea freight
- Tracking and customs support provided
BMU-H5-52 High-Voltage BMS Slave BMU
Reliable · Precise · Customizable — Engineered for 52S energy storage battery packs with ±4mV voltage accuracy and full CE / RoHS / FCC certification.
Why Choose JKESS
Data-driven results that deliver real economic and operational benefits for your energy storage projects.
Ultra-High Voltage Accuracy
Cell voltage monitoring precision that ensures optimal battery balancing and extends pack lifespan.
System Uptime
Proven reliability with CE, RoHS & FCC certifications — trusted by global ESS manufacturers.
Customizable Solutions
Full support for firmware tailoring, communication protocols, and harness customization for any project.
Patents & IP Rights
Independent intellectual property with multiple patent certificates — innovation you can trust.
📦 Package Includes
⚠️ Not Included (Sold Separately)
Key Features of BMU-H5-52
±4mV Voltage Accuracy
High-precision AFE chip for reliable cell voltage monitoring across full temperature range.
57-Channel NTC Sensing
Comprehensive temperature monitoring with ±1°C accuracy for optimal thermal management.
CAN Communication
Robust 1x CAN interface for seamless data exchange with master BMS controllers.
Passive Balancing
100mA effective balancing current with support for odd/even channel balancing.
Auto Address Assignment
Multi-slave cascade with automatic address encoding — plug and play.
High Insulation & EMC
AC 3100V withstand voltage, EMC compliant with GB/T-18655, ISO11452, ISO7637.
Firmware OTA Upgrade
Supports CAN bus firmware upgrade for easy maintenance and feature updates.
Global Certifications
CE, RoHS, FCC certified — ready for worldwide deployment.
Customer Pain Points & Our Solutions
Applications
Industrial & Commercial ESS
Peak shaving, load shifting, and backup power for factories, data centers, and commercial buildings.
Grid-Side Energy Storage
Frequency regulation, renewable integration, and grid stabilization for utility-scale projects.
Battery Pack Integration
Seamless integration into 52S battery packs for OEMs and system integrators.
Solar + Storage
PV-coupled storage systems for residential, C&I, and community-scale renewable projects.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | High-Voltage BMS Slave BMU (52S) |
| Voltage Acquisition Accuracy | ±4mV (full temperature range) |
| Voltage Detection Range | 0 ~ 5000mV per cell |
| Temperature Detection Accuracy | ±1°C |
| NTC Temperature Channels | Up to 57 channels |
| Balancing Type | Passive balancing, 100mA effective current |
| Communication Interface | 1x CAN |
| Operating Voltage | DC 9V – 36V |
| Operating Current | ≤ 35mA (12V) / ≤ 20mA (24V) |
| Operating Temperature | −20°C ~ +65°C |
| Storage Temperature | −40°C ~ +125°C |
| Insulation Withstand Voltage | AC 4200V |
| Protection Class | IP54 (non-waterproof) |
| EMC Compliance | GB/T-18655; ISO11452; ISO7637; ISO10650; ISO16750 |
| Standard Compliance | GB/T 34131-2023 |
| Dimensions | 272 × 111 × 25 mm |
| Certifications | CE · RoHS · FCC (with independent IP and patents) |
Installation Notes
📋 Pre-Installation Checklist
🔧 Key Installation Steps
⚠️ Safety Precautions
Selection Guide
Choose the right BMU configuration for your project. Follow this decision flow or contact our team for personalized assistance.
Procurement & Ordering Guide
📄 Required Documents
⚙️ Customization Options
🚚 Delivery & Shipping
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View Details →Frequently Asked Questions
Industry News
EU Proposes "Made in EU" Requirements for BESS & BMS
The European Commission has proposed legislation requiring BESS projects 1MWh to include EU-made battery management systems within one year of enactment.[reference:0]
Read more →Southeast Asia Energy Storage Market Poised for 100GWh Growth
Driven by renewable energy targets in the Philippines, Vietnam, and Thailand, Southeast Asia is expected to add 100GWh of energy storage capacity from 2026–2030.[reference:1]
Read more →CIES 2026: 16th China International Energy Storage Conference
The premier energy storage industry event will take place in Hangzhou, gathering 300+ organizations to discuss BMS technology, policy, and market trends.[reference:2]
Read more →
