Getting a battery health report before you sell your EV

The battery is the most expensive part of a used EV and the one buyers can't see. A proper report turns "trust me" into a number, and an ad with a report gives buyers far less reason to haggle.

What the report tells a buyer

The key figure is state of health (SoH): how much of the battery's original capacity is left, as a percentage. A good report also gives a realistic driving range at today's capacity, not just the figure from when the car was new.

Three levels of evidence

• Independent test. An AVILOO Flash test plugs into the car and takes a few minutes with it parked. It gives a certificate with SoH and range. In Australia and New Zealand it is offered through the Test EV network of testers (from about $200), and as an add-on to a RedBook Inspect pre-purchase inspection.
• Dealer or manufacturer report. A brand's service centre can usually run a battery check during a service.
• The car's own display. Some cars show battery health in a menu or app. It is better than nothing, but it is the car's own estimate, and buyers know that.

Sharing it on eRideList

1. When you post the ad, set Battery health report to the type you have, and enter the SoH %. Ads with an independent or dealer report get a "Battery report" badge, and buyers can filter for them.
2. On your live ad, use Attach report to upload the PDF or a photo. Cover your name and address first; leave the VIN showing, because that is what proves the report belongs to this car.
3. The report stays private. Buyers tap Request report, you get a message, and you choose who can see it.

Next: the full checklist for selling your used EV.