Battery monitoring (Trimetric type vs Panel mount type)

John, I believe there was more than one thread. There is not much to learn, this is a V/A meter like any other meter, only with micho-chip that calculates A*Time=AH, and can be reset. It will err under heavy loads (Peukert), like MW or toaster. I agree with SMK that if budget is a concern, you can live happily with such a meter, without spending 5 times as much on "real monitor".