New (to me) prius owner here! Just got the Dr. Prius app a month ago, as I'm getting the dreaded P0A80 code, I knew it was probably coming sooner or later, but not two months after getting this car. It's a 2011, the battery has theoretically been worked on before, meticulously maintained and generally in great shape. Wondering if anyone can decipher what the visual is saying? I have read that the middle section is where you want to look and that higher numbers mean more likely cells are failing, they all seem good to me from here? This was at idle, hadn't been driven in an hour or so. Is that correct? Planning on getting into the battery soon and checking out the bus bars and battery fan, etc. Any more ideas are welcome! Dr. Prius by LibTech posted Nov 29, 2025 at 1:58 PM
The Dr Prius screenshot shows that there is a voltage difference between the highest and lowest battery blocks of 0.41v, which is high enough to trigger the P0A80 code. The screenshot is only a brief glimpse at what is happening with the battery. The battery was only discharging at 1.20 amps at the time the screenshot was taken. At higher current charge or discharge rates, the voltage difference between the battery blocks will increase greatly. The freeze frame data for code P0A80 would provide a much better idea of what is happening with the battery when the code was activated. To look at the freeze frame data, you need a scanner that is capable of reading it. Most scanners do not have the capability of doing that. How many miles on the car?
