My Hart Interface divive shows status of batteries on my Hunter 420 (built 2000) with red, yellow and green lights, as well as percentage status in percentages. All the lights work on it except those 3 colored ones. I was wondering if others have those lights not work and if it requires replacing the whole unit. It was manufactured by Hart, a Kent, Washington company. I can't find a current phone number for the unit, which has a part number 84-2056-7225/. Its size is about 4"x 2".
