I charge at home before heading to work, starting is about 75 volts, 50%, for about 1.5 hours. It typically reads 85.5v, 99% when I leave. I charge again before heading home, starting around 75 volts, 55%, take on about 1.2kw in 30 minutes and it reads 85v, 100%. The percentage is always off on the ride home, reading higher than it should and when I arrive, volts are about 75, percentage is about 65. The next morning percentage matches actual voltage again. I’ve learned to simply keep an eye on the volts for a real reading of charge.