Have 2001712003 device and seems to work for amps, volts, watts, and Wh but does not show the remaining capacity. I just tried this for the first time today and am now recharging the batteries. How do I get it to show remaining battery capacity? I have 6, 12 volt batteries in series and I am using the Hall sensor between battery 4 and battery 5. Batteries 1, 2 3, and 4 are in the rear of my electric vehicle with batteries 5 and 6 in the front of the vehicle.