Cellgrade

Check a battery report

A Cellgrade Battery Report carries its own signature. This page checks it in your browser. Nothing is uploaded and nothing is stored here.

Scan the QR code on the report

Opening the link in the report's QR code brings the whole report here and checks it. Without it there is nothing on this page to check.

Checking a car yourself?

Cellgrade reads a car's batteries through an OBD adapter and grades each one from A to E, with the three measurements behind the grade. That much is free, on both phones.

iPhone Android

Have only the code?

The code is the report's own fingerprint. It proves a report has not been edited when you hold both, and on its own it is sixteen characters anyone can type. Scan the QR code on the document and the whole report is checked at once.