Description
Battery Pack & BMS Testing Services
Reliable BMS performance is essential for the safety, performance, and service life of a lithium battery pack. LionBattery Testing Lab provides professional Battery Pack and BMS Testing Services to evaluate critical protection functions, electrical performance, cell monitoring, balancing, communication, and battery capacity.
Our testing services help battery manufacturers, OEMs, EV companies, battery assemblers, engineers, and R&D teams verify BMS functionality and identify potential protection or monitoring issues.
Comprehensive BMS Testing
BMS Over-Voltage Protection
Verify that the BMS detects excessive cell or pack voltage and activates the appropriate protection function.
Under-Voltage Protection
Evaluate BMS response when cell or pack voltage falls below the configured protection threshold.
Over-Current Protection
Test the BMS response to excessive charging or discharging current and verify that the protection system operates as intended.
Short-Circuit Protection
Evaluate BMS short-circuit protection response under controlled laboratory conditions to verify safe disconnection and protection behavior.
Over-Temperature Protection
Verify BMS temperature sensing and protection when battery temperature exceeds the specified operating limit.
Under-Temperature Protection
Evaluate BMS response to low-temperature conditions and verify appropriate charge/discharge protection according to the BMS configuration.
Cell Balancing
Test passive or active cell balancing functionality and evaluate voltage differences between individual cells during charging and operation.
SOC Accuracy
Evaluate the accuracy of the BMS State of Charge calculation by comparing reported SOC with measured battery charge/discharge behavior.
CAN Communication Testing
For CAN-enabled BMS systems, evaluate communication with compatible external systems. Testing can include CAN data transmission, received parameters, communication stability, and applicable BMS data based on the customer’s specification.
Battery Pack Capacity & Energy
Measure actual battery capacity in Ah and energy in Wh under defined test conditions. Results can be compared with the rated battery specifications.
Cell-to-Cell Voltage Monitoring
Monitor individual cell voltages to identify abnormal voltage variation, weak cells, imbalance, or BMS sensing problems.
Cell Temperature Monitoring
Evaluate individual temperature sensor readings and monitor temperature variation between cells or battery sections.
Applications
Battery Pack & BMS testing is suitable for:
- Lithium-Ion battery packs
- LiFePO4 battery packs
- NMC battery packs
- Electric vehicle batteries
- E-bike and electric scooter batteries
- Solar energy storage batteries
- UPS battery systems
- Robotics batteries
- Drone and UAV battery packs
- Industrial battery systems
- Custom battery packs
- Prototype and R&D battery systems
Test Report
Depending on the selected test package, the test report can include:
- Battery identification
- BMS identification
- Rated battery specifications
- Test conditions
- Protection thresholds
- Measured voltage
- Measured current
- Cell voltage data
- Cell temperature data
- Capacity in Ah
- Energy in Wh
- SOC data
- CAN communication observations
- Cell balancing observations
- Protection response
- Test graphs
- Test results and observations
Report Verification
Testing parameters and acceptance criteria can be customized according to the battery pack, BMS specifications, application, and customer requirements.
