What Is the Main Advantage of Integrating BMU and BDU into One Unit?

It reduces wiring complexity, improves response time, and enables compact, modular system design.

Can I Get Real-Time Data from the Integrated Unit for Remote Monitoring?

Absolutely. The BMU supports real-time data streaming for remote diagnostics and cloud-based monitoring.

How Do You Ensure Thermal and EMI Isolation Between BMU and BDU in the Same Housing?

We use multi-layer PCB shielding, thermal isolation pads, and independent ground paths to manage heat and EMI.

What Safety Certifications Do LEAPENERGY Integrated Units Have?

Our products comply with ISO 26262, IEC 62619, UL 2580, and other relevant EV/ESS safety standards.

Can LEAPENERGY Provide Technical Support and Integration Guidance?

Yes. We offer full documentation, reference designs, and engineering support for customer integration.

BMU integrated
in BDU

LEAPENERGY‘s BMU and BDU operate in a tightly coupled loop: the BMU continuously analyzes sensor input and instructs the BDU to perform switching actions accordingly. In return, the BDU reports the real-time status of contactors and high-voltage lines, ensuring synchronized protection and rapid fault response.

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ISO 26262UN38.3UL

Aligns with next-gen EV and ESS trends

Compatible with AI-based BMS platforms

Supports predictive maintenance

Compliant with global safety standards

BDU: Smart Battery Protection

The Battery Disconnect Unit (BDU)ensures safe power delivery by controlling contactors for positive and negative terminals, managing pre-charge processes, and providing emergency disconnect functionality during thermal events or collisions.

Efficient integration

Control the connection and disconnection via contactors and integrates safety components such as fuses, pre-charge resistors, and current sensors.

Safety Protection

Integrated safety mechanisms including overcurrent protection, fault detection, and emergency disconnect systems.

Smart Control

Controls high-voltage circuit connection/disconnection across multiple vehicle systems with minimal power loss and maximum reliability.

BMU: Intelligent Battery Control

The Battery Management Unit provides comprehensive monitoring, control, and protection for individual cells and the entire battery pack ecosystem.

Real-Time Monitoring

Continuous monitoring of cell voltage, temperature, and current with microsecond precision and instant fault detection.

Advanced Analytics

Machine learning algorithms predict battery health, optimize charging cycles, and extend overall battery life.

Cell Balancing

Active and passive cell balancing ensures optimal capacity utilization and prevents individual cell degradation.

BMU + BDU – Unified Control & Safety

Integrating BMU and BDU into a single intelligent module reduces system complexity and enhances performance. It minimizes wire harnesses, improves electromagnetic compatibility, and enables faster reaction to faults.

40% Volume reduce

18.5% Weight reduce

5% BOM cost reduce

Zero LV wire-harness design

Automatic assembly, 67% capacity improvement of the production line

High integration

BMU+ Pre-charge module+ power distribution unit

Why Integration Matters？

Better EMI performance and system efficiency

Faster communication and fault response

Space-saving and reduced wiring complexity

Ideal for CTC/CTP battery architectures

Item	New design	Original design
Voltage	≤500VDC	≤400VDC
Current	≤406A	≤250A
Temperature	-40℃~85℃	-40℃~85℃
Dimensions(L/W/H)	464115103.4mm	59616993.7mm
Weight	3.3kg	4.05kg
Connection Points	12	16
Components	15	31
LV Wire-harnesses	0	3

FAQs

What Is the Main Advantage of Integrating BMU and BDU into One Unit?
It reduces wiring complexity, improves response time, and enables compact, modular system design.
Can I Get Real-Time Data from the Integrated Unit for Remote Monitoring?
Absolutely. The BMU supports real-time data streaming for remote diagnostics and cloud-based monitoring.
How Do You Ensure Thermal and EMI Isolation Between BMU and BDU in the Same Housing?
We use multi-layer PCB shielding, thermal isolation pads, and independent ground paths to manage heat and EMI.
What Safety Certifications Do LEAPENERGY Integrated Units Have?
Our products comply with ISO 26262, IEC 62619, UL 2580, and other relevant EV/ESS safety standards.
Can LEAPENERGY Provide Technical Support and Integration Guidance?
Yes. We offer full documentation, reference designs, and engineering support for customer integration.

BMU integrated in BDU