Battery End-Of-Line (EOL) Tester

One-stop solution for testing lithium battery modules and packs

Digatron - an innovator within the battery industry with turnkey solutions for battery testing - is working with HAHN Automation - a global partner for end-of-line testing systems. We bring together the best of both worlds to create a complete solution for end-of-line testing, improving the production quality of your lithium battery modules and packs..

Experienced teams of experts from Digatron and HAHN work together to make battery testing and diagnostics as efficient and safe as possible, ensuring the sustainability of lithium batteries for a lifetime. The result is a modular solution where the customer can select the modules individually according to their requirements. The Battery EOL Tester supports the entire end-of-line testing workflow by providing customized communication and testing solutions including electrical testing, leakage testing, BMS configuration, etc.

In addition, the Battery EOL Tester has a central database for subsequent analysis & traceability of measurement data. This enables an integrated evaluation of all tests performed and thus contributes to a continuous optimization of battery manufacturing & assembly. The Battery EOL Tester can be seamlessly integrated into existing EOL processes.


One stop solution for battery EOL testing including all kinds of tests like - electronic test, leakage test, BMS programming & configuration, charge & discharge test etc.


Data Analytics and Traceability

Centralized database for analytics and traceability that leads to electrical and electronics testing from one source, providing continuous optimization of battery manufacturing and assembly. Data analytics & traceability reports can be easily generated.



We develop customized and exactly fitting solutions as per your requirement with trend setting technology.



It can be expanded to higher power or with additional tests.

Functions & Applications

Functions Applications
High Voltage Insulation Test: Test identifies possible insulation faults in HV components and/or HV cables
High Voltage Withstand Test: Same as for insulation testing, but different standards. Test identifies possible insulation defects in HV components and/or HV cables
Leakage Test for Cooling System: Test ensures that no cooling liquid gets inside the HV battery
Leakage Test for Housing: Test ensures that the housing is (water) tight so that the battery is not flooded when the vehicle is submerged.
Optical Inspection: Visual inspection with checklist app. or automated optical inspection system.
BMS Programming, Configuration and Verification: Updating the operating software of the BMS control unit and vehicle-specific configuration of the battery.
BMS General Diagnosis: (Error Codes, general status, cell voltage, current, temperature, I/Os)
Charge Test: BMS current sensor verification (charge current and Voltage measurement)


Set the desired SOC (state of charge). Make sure that the battery is sufficiently charged for the further production process.
SOC Verification Cycle: Defined cycle that is needed by BMS to calculate SOC.
Discharge Test: High current discharge


DCIR (internal DC resistance)


Thermal hot spots detection (with IR optical inspection/IR analysis software)


Controlled fuse test
BMS Sensor Verification: Verification of the range calculation and the charging, discharging functions and overcharge protection
Simulation Of Charging Stations: Ensure that communication between the charging station and the internal charging electronics works properly.


Worldwide standards: CCS/GB/T27930/CHAdeMO
Temperature Sensor Verification: Reference measurement for verification of the temperature sensors
Simulation Of Fault Conditions: Simulate short circuit

Connect external resistors

Pyro Fuse Test: Pyro circuit test (connectors, cables and firing circuit)