I have finally worn out my 2019 Haibike. Battery is at 2/3 power with a full charge. Motor was surging yesterday on a 26 mile power ride. I ain't complaining, I got 5 years out of the German built and imported 350 watt mid drive motor, Very happy with the results and the ride life I have had with it. RIP little 350 watt.
@Bitmugger has shared their experience with 52V Dorado on Moscow.
Just received a new Dorado 25ah battery