Solutions
M-BMS Control System
A Battery Management System purpose-built for second-life EV batteries — maximizing residual capacity, ensuring safety, and unlocking new energy-storage value.
The Opportunity
Used EV Batteries Still Have 70–80% Capacity
When an EV battery drops below the performance threshold for automotive use — typically after 2 to 3 years — it is retired from the vehicle. Yet these packs still retain 70 to 80% of their original capacity, making them perfectly viable for stationary energy storage. JK Technology's M-BMS safely manages these second-life batteries, converting retired assets into reliable ESS power sources.
Functions
6 Core Management Functions
Every function required to ensure battery safety, performance, and longevity in one integrated system.
State of Charge
SoC Estimation
Precisely estimates remaining battery capacity in real time, giving an accurate picture of available energy at any moment.
Cell Balancing
Cell Balancing
Minimizes voltage deviation between individual cells to maximize battery lifespan and maintain stable output power.
Thermal Management
Thermal Management
Actively controls cooling devices based on temperature-sensor data to maintain optimal operating temperature ranges.
Power Limitation
Power Limitation Control
Controls charge and discharge current in real time to prevent overcharge and over-discharge, protecting the battery pack.
Fault Diagnosis
Fault Diagnosis
Instantly detects abnormalities in voltage, current, and temperature, triggers warning alerts, and switches to a safe operating mode.
Power Relay Control
Power Relay Control
Precisely controls the main relay and pre-charge circuit to ensure a safe start-up and shutdown sequence every time.
Strengths
Why JK Technology M-BMS
Purpose-built algorithm for aged, second-life EV cells with diverse degradation histories — maintains high SoC estimation accuracy regardless of cell history.
Mobile BMS (M-BMS) architecture — significantly smaller and lighter than conventional BMS designs, enabling flexible system integration.
Active advancement through the SME Technology Innovation Development Project, continuously raising algorithm performance benchmarks.
Successfully demonstrated EV battery BMS via the Asset Commercialization Development Project, validating real-world reliability.
6
Core control functions
2+
Active government projects
±2%
Target SoC estimation error
5+
BMS technology transfers
Applications
Use Cases
Transforming used EV batteries into new energy assets across multiple sectors.
Residential ESS
Build cost-effective home energy storage using second-life EV batteries paired with solar or other renewable sources.
Commercial Energy Storage
Large-scale ESS solutions for commercial buildings and factories that cut peak-demand charges and improve grid resilience.
EV Charging Buffer
Absorb grid load spikes at fast-charging stations by acting as a high-capacity buffer between the grid and chargers.
Renewable Energy Storage
Pair M-BMS-managed packs with wind or solar installations to smooth intermittent generation and improve dispatch reliability.
Process
Battery Second-Life Process
Get Started
Considering M-BMS for Your Project?
We offer technical consultations and live demonstrations.
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