I connected the BMV-712 to a new 170ah LFP battery yesterday (BMV is about 1-year old, and worked last year on a Lead Acid set-up). Although it initially indicated "10d 10h" when the battery was disconnected from shore power, now it reads "Infinity". I have done a factory reset, but nothing changed. I disconnected the UTP cable, but nothing changed. The battery monitor also consistently reads .11v lower than a direct read at the battery (I had this same problem with the Lead Acid set-up). For example, in the attached image the reading is 13.69, but a direct read at the battery is 13.8. I also wonder why "Starter Battery" indicates a voltage amount when no starter battery is connected?
Are there any tricks I can try, or is it possible I have a bad monitor? Maybe a bad UTP? Please forgive the messiness of my set-up right now, it will get cleaned up once I isolate the problem.