Derives usable traction battery capacity from the car's own arithmetic. No adapter, no assumptions about WLTP, EPA or wheel size.
Checking…
01The car
Identify the car and set its reference capacity first. Everything below is recorded against it.
Published figures vary by market, software version and production batch. Where a year has more than one published figure, all are listed. Once you have readings from cars you trust, use those instead.
02Energy app — 200 mile view
The consumption figure, and the line beneath it comparing it to Rated.
03Battery indicator — top of the main screen
Not in the Energy app. This is the small battery symbol in the status bar along the very top of the main screen, right of centre, beside the driver name. Touch the battery icon to swap it between miles and percent — read one, tap, read the other. Do it with the car parked and not charging so nothing moves between the two readings. Above 80% charge is more accurate.
04Result
Usable capacity
—kWh
0100%
Rated constant—
Rated range at 100%—
Projected range, recent driving—
Reference capacity when new—
05Saved readings
No readings yet. Save one above and it stays on this device.