When it comes to buying a used electric vehicle (EV), one key indicator can change everything: the battery’s State of Health (SoH). Forget mileage today, it’s the battery diagnosis that reveals the true value of an EV.
Thanks to tools like PKC Power Check Control, it’s now possible to analyze an EV battery via OBDII, using real-time data directly from the vehicle’s Battery Management System (BMS).
The Battery: The Heart of an Electric Vehicle
The battery is the most expensive and most strategic component of an EV. Its natural degradation, charging history, and the quality of the BMS significantly influence:
- Actual driving range
- Vehicle performance
- And most importantly: resale value
That’s why a certified EV battery report has become essential for buying or selling a used EV with full transparency.

PKC: A Complete Solution for Battery Certification
The PKC Power Check Control app, compatible with a Bluetooth OBDII dongle, reads technical battery data via the BMS and generates a CARA Approved Battery Certificate, including:
- State of Health (SoH) in %
- Number of AC/DC charges
- Certificate validity (60 days)
- Supported vehicle coverage (90%+ of EVs and PHEVs)
- QR code for easy certificate authentication
- Detection of degraded or faulty BMS
This digital certificate, available through the Power Cruise Control app, is accessible anytime and linked to a VIN-based license for full traceability per vehicle.

Selling or Buying a Certified EV Battery: The New Standard
Whether you’re a buyer or seller, having a certified battery report is a mark of professionalism:
- Increase the value of your listing
- Build trust with the buyer
- Reduce price negotiations
- Avoid post-sale disputes
👉 Order PKC Power Check Control now
See how to get a reliable EV battery certificate in just a few minutes

