Certificates and verification
1. Who this page is for
This page is for anyone who receives or checks a BattGrade certificate: a buyer, a seller, a dealer, a lender or an insurer. You do not need an account to verify a certificate.
2. What a certificate is
A BattGrade certificate records a test of one vehicle's high-voltage battery, run by the inspector named on it, on the date shown. The app read the battery data through the vehicle's diagnostic port; BattGrade's server then calculated the State of Health (SoH) and the grade from that raw data, under the Methodology version printed on the certificate.
The certificate names the method used, gives an uncertainty band in percentage points, and shows the checks the vehicle allowed, such as cell voltage spread or insulation. It is valid for 6 months from its date of issue.
3. What a certificate is not
- It is not an official technical inspection or a roadworthiness document. BattGrade is a private company: it is not a public authority and not an accredited test laboratory.
- It is not a warranty or a guarantee of the battery, its future condition or the vehicle's range.
- It is not a valuation of the vehicle.
- It does not cover every possible defect of the battery or the vehicle.
- BattGrade is not a party to the sale and does not act for the buyer or the seller.
4. What “verified” means
When you open a certificate at battgrade.com/verify, our server recalculates a SHA-256 hash of its public data and checks the ECDSA P-256 signature made when it was issued. The green banner means that BattGrade issued the certificate and that its public data (vehicle, result, readings, test details and issuer) has not changed since.
The signature does not confirm:
- the condition of the vehicle beyond what was read during the test, or its condition today;
- data the inspector entered: the odometer reading, and the VIN when the certificate says it was typed by hand;
- the inspector's qualifications, or the licence number they entered;
- that the vehicle's battery management system reported accurate values;
- anything about the sale, the seller or the price.
It is not a qualified electronic signature or seal under the EU eIDAS Regulation. Our public keys are published at battgrade.com/api/certificates/keys, so anyone can check a signature independently.
Other states you may see:
- Does not match: the data on file no longer matches the signature. Do not rely on the certificate, and report it to us.
- Expired: the certificate is more than 6 months old. It is still genuine, but it describes the battery as it was then.
- Revoked: the issuer or BattGrade withdrew the certificate, for example after a mistake. Do not rely on it.
- Issued before signatures: older certificates issued before BattGrade signed certificates carry no signature.
- Sample: an example certificate that describes no real vehicle or inspection.
- Not found: no certificate with that ID exists. Check the ID; if it still does not exist, the document may be counterfeit.
5. How to rely on a certificate
- Check it live at battgrade.com/verify, from the QR code or the ID, not only from a PDF or a screenshot. A downloaded PDF stays as it was; only the verification page shows whether the certificate was revoked since.
- Check that it belongs to the vehicle: compare the make, model and year, and the visible characters of the VIN, with the vehicle itself and its documents. The public page hides two characters of the VIN; the seller or the inspector can show you the full VIN on the PDF sent to the customer.
- Look at the date of the test and the odometer reading. A certificate is a snapshot, and the battery keeps ageing.
- Read the method, the uncertainty band and the checks, not only the grade.
- Use the certificate as one input, together with the vehicle's history, an inspection and a test drive.
6. Who is responsible for what
The inspector named on the certificate ran the test and is responsible for it: the vehicle tested, the data entered and the test conditions. Inspectors are independent businesses that use BattGrade; they are not BattGrade staff.
BattGrade is responsible for its software: the calculation of the result from the data read, and the integrity of the certificate record.
7. Liability towards readers of a certificate
BattGrade provides certificates to the inspectors who issue them, under its Terms of Service. It has no contract with buyers or other people who read a certificate, and reading or relying on a certificate does not create one.
To the extent the law allows, BattGrade is not liable to you for decisions you make on the basis of a certificate, for example to buy, sell, lease, insure, finance or value a vehicle. Nothing on this page limits liability that cannot be limited by law, such as liability for intent or gross negligence, or under mandatory product liability rules.
8. Privacy on the public page
The public page and PDF show the vehicle, the result, the issuing company and the name of the inspector. The VIN is shown with part of it hidden, and the customer's details never appear. Verification pages are marked so that search engines do not index them. If a certificate concerns you and you object to its publication, write to [email protected].
9. Report a problem
If a certificate looks wrong, does not match the vehicle, or you suspect fraud, use “Report a problem” on its verification page or write to [email protected] with the certificate ID. We review every report. If a certificate was issued in breach of our terms or from false data, we may revoke it, and its verification page will then show it as revoked.
10. About BattGrade
BattGrade is a brand administered and managed by TOPFED WEB S.R.L., a limited liability company registered in the Republic of Moldova under IDNO 1026023125543, with its registered office at s. Pepeni, r-nul Sîngerei, MD-6234, Republic of Moldova.