BMW: EV Battery Test System


BMW came to Chroma to build a test system that will allow them to run qualification and verification testing on batteries for their new electric vehicle technologies.


Chroma provided a 17020 Regenerative Battery Pack Test System solution for this customer. The main components in the battery tester included a 69200-1 Charge/Discharge Controller, an A691101 DC/AC Bi-Directional Converter, and a 69225-60-4 Regenerative Charge/Discharge Tester 4 Channel Module. The test system included a PC and Chroma’s Battery Pro software. This system configuration would allow the customer to test 4 channels individually, or in parallel for a higher power output.

Actions Performed

A standard 12V Lead-Acid battery was used to validate functionality of the 17020 system. Battery Pro was utilized to program battery charge and discharge sequences. Each of the 4 channels in the system was tested individually.


After a full system hardware validation was conducted, the customer received training on Chroma’s Battery Pro software and all functions of their 17020 system.