Certified EV Battery Health Check (SoH & CoH)
Independent & professional — when buying or selling a used electric car, everything comes down to one question: how good is the battery really? Since the battery pack is the most expensive component of the vehicle, only a professional health test gives you real certainty. The test is CARA-certified and provides precise measurements of capacity, cell balance, internal resistance, and overall battery condition.
Brand-independent battery check
As your independent master workshop in Geilenkirchen, we offer a brand-independent battery check. We read the sensitive battery data directly via the diagnostic interface and evaluate it professionally.
How the battery check works
- Bring in your vehicle — arrange an appointment and bring your EV to our workshop in Geilenkirchen.
- Data readout — we read the battery data directly via the diagnostic interface.
- Professional evaluation — SoH and CoH values are determined and assessed.
- Certificate & report — you receive a valid, brand-independent certificate with all results.
What SoH and CoH mean for you
SoH — State of Health
This value shows the battery's remaining capacity compared to a new vehicle (e.g. 88% SoH). It's the most important figure when reselling the car.
CoH — Condition of Health
This value indicates the general condition and reliability of the electronic and mechanical components of the battery system.
Your benefits with us
📄 Valid, brand-independent certificate
You receive a valid certificate with the measured values — a neutral proof of condition for insurers, buyers, or your own records.
🔍 State-of-the-art diagnostics
Our high-voltage experts use certified test procedures that deliver exact data. The test is CARA-certified and provides precise measurements of capacity, cell balance, internal resistance, and overall battery condition.
⚡ Fast & straightforward
Bring your vehicle by and we'll prepare the report in no time.
Frequently asked questions about the EV battery check
What is the difference between SoH and CoH?
SoH shows the battery's remaining capacity compared to new. CoH describes the general technical condition of the electronic and mechanical components. Together they give a complete picture.
Which EV brands can be checked?
The battery check is brand-independent — we read the battery data directly via the diagnostic interface, regardless of the vehicle's manufacturer.
How long does the battery check take?
The check is straightforward and usually quick, typically completed during a regular workshop visit.
What does the battery check cost?
The battery check starts from 90.00 € (depending on vehicle type). Call us or send us an e-mail for an individual quote.
Get clarity on your EV!
Battery check from 90.00 € (depending on vehicle type). Give us a call to book your appointment.
Or by e-mail: backus@t-online.de