Ride report
It got warm enough (5 C) to try a no-pedal ride till the battery gave out. Starting voltage 26.4, decreasing performance over the ride (first time up the hill 21.6 km/hr, second time 21.0). It went for about 18 min total, 6.65 km, 21.1 km/hr average till it cut out going up a hill. 24.7V final. This is pretty much totally unacceptable, something like a third of what I would expect. I think it’s time to declare the battery pack toast.