Rad battery meter accuracy

[DickB]

In my quest for more information on the Rad battery and charging, I ran an experiment to plot the battery voltage discharge profile and note the accuracy of the Rad battery meters.

For the test, I ran full throttle only on a straight, quite level road (Florida!), stopping every 2 miles to check battery voltage and meter readings.  The meters were read per Rad instructions, with no pedal assist and no throttle, about 60 seconds after stopping.

My test shows that the Rad meters are a bit optimistic.  The LCD meter reads Full at 70% charge. One would expect to see 4 bars. At 50% capacity, the meter shows 4 bars, which you might interpret as 80% remaining.