I should mention the Dr. Prius app, which is not limited to the Prius. The Dr. Prius website lists ODB2 readers that are able to access the battery data. Some s

I should mention the Dr. Prius app, which is not limited to the Prius. The Dr. Prius website lists ODB2 readers that are able to access the battery data. Some single-board ODB2 readers can't.