The value of used electric vehicles is largely determined by the “health” of the drive battery, known as its state of health (SoH). Sellers and buyers alike have an interest in knowing this number, which shows the relationship between the remaining battery capacity and its original capacity as a percentage. At any rate, until recently, there was no method for checking this SoH quickly and reliably.
“When assessing used cars, there isn’t time for time-consuming laboratory tests,” says Christoph Mennicken, Vice President of the Claims & Expertise Service Division. “It has to be quick.” With this goal in mind, DEKRA’s Vehicle Inspection and Claims & Expertise Service Divisions worked together closely. Together with the FKFS research institute, they developed a new method. “Our solution has also been evaluated and certified by the Institute for Power Electronics and Electrical Drives (ISEA) at the renowned RWTH university in Aachen,” reports R&D Manager Andreas Richter.