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BattGrade

Verify a certificate

Enter the certificate ID printed on the document, or scan its QR code, to confirm a battery health certificate is authentic.

Or scan the QR code on a printed certificate with your phone
See a sample certificateHow the score is calculated
The certificate

What's inside every BattGrade certificate.

A PDF that records the condition of the high voltage battery on the day of the test: the State of Health, how it was obtained and how precise it is, the grade, any warning signs and who ran the test.

  • Method and uncertainty

    The SoH comes with the method behind it (energy-based, capacity-based or BMS-reported) and an uncertainty band in points.

  • Checks

    Cell voltage spread, temperature spread, insulation and signs of a BMS reset, wherever the car provides the data.

  • QR verification

    Every certificate carries a unique QR code that opens its live, public record on battgrade.com.

  • Digital signature

    Signed with an ECDSA P-256 key over a hash of its data, and stamped with the algorithm version used to score it.

  • 6-month validity

    Time-bound by design, so a certificate always reflects a recent reading.

BATTGRADE
Battery Health Certificate
State of Health
91.3%
A
Make / Model
Hyundai Ioniq 5
Year
2022
VIN
KMHKN81EFNU012345
Mileage
48,200 km
SoH method
BMS-reported
Uncertainty
±6 points
Cell voltages · 180 cells · spread 9 mV
Sample certificate
For illustration only