Battery condition (SoH analysis)
Measurement of the high-voltage battery's state of health. We determine the actual remaining capacity and assess the degree of degradation – decisive for residual value and for any warranty claim.

Electric vehicles call for a different approach to damage assessment than combustion cars. The battery sits in the floor pan, it is the single most expensive component – and its condition decides the value of the car. As a certified appraiser with high-voltage qualification, we assess electric and hybrid vehicles of any make.
On a combustion car you can essentially see what has been damaged after a collision. On an electric vehicle that is not the case. The high-voltage battery is built in as a flat unit in the floor pan and enclosed in a protection tray. Grounding on a kerb, a rear-end impact at moderate speed or a knock while manoeuvring can deform that tray without anything showing on the bodywork.
The consequences appear with a delay: falling range, fault messages in the battery management system and, in the worst case, thermal problems. If they surface months later, the connection with the collision is barely provable any more – and the insurer settled long ago.
That is why, on every electric vehicle after a collision, we inspect the underbody, the battery protection tray, the insulation resistance and the fault memory of the battery management system. What is not documented does not get paid for later.
Six areas that a standard inspection regularly leaves out.
Measurement of the high-voltage battery's state of health. We determine the actual remaining capacity and assess the degree of degradation – decisive for residual value and for any warranty claim.
Insulation resistance, high-voltage cabling and the battery management system checked for hidden defects. After a collision, high-voltage damage can stay concealed.
The battery sits in the floor pan. Even light rear-end impacts can cause expensive damage. We find what a visual inspection misses.
Battery warranty, software level, charge cycles and remaining range move the value of the vehicle considerably. Our report accounts for every EV-specific value factor.
Reading the fault memory, analysing charging and driving data and checking for manipulated odometer readings – particularly relevant on used electric vehicles.
The charging port, the on-board charger and compatibility with the charging infrastructure are checked. Where a charging incident has caused damage, we produce the full damage report.
Work on high-voltage systems requires a qualification of its own – not every vehicle appraiser is permitted to open or isolate an electric vehicle. Our practice is certified for electric and hybrid vehicles, including state-of-health analysis of the traction battery.
The technical grounding is a Bachelor of Engineering with a focus on mechanical engineering together with many years in the automotive industry, several of them in a management role in quality assurance. All the credentials are published openly on this site as PDFs – not as a logo, but to be read. The documents are in German.
Important for you after a collision involving an electric car: do not move a damaged electric vehicle yourself and do not park it in an enclosed garage. Call us – we come to the vehicle.

The sooner we record the damage, the more completely it can be documented. Free of charge if the collision was not your fault.
We come to you – travel is free of charge throughout our service area and an inspection is often possible the same day.
We assess electric and hybrid vehicles in Rottweil, Schramberg, Oberndorf am Neckar, Sulz am Neckar and the whole district of Rottweil – and in the neighbouring districts of Tuttlingen, Freudenstadt, Zollernalb and Schwarzwald-Baar.
Straight to your town: Rottweil, Schramberg, Oberndorf am Neckar, Sulz am Neckar, Deißlingen, Zimmern ob Rottweil or the overview of all locations. Please note that the individual location pages are written in German.
Head office in Schramberg-Sulgen, branch office in Rottweil. For the damage inspection we come to you in any case – on site, at the workshop or at your home.
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