Sveinb wrote on Thu Mar 28, 2024 2:41pm:
Just checked my bike spec (Trek, sold as the 500 model of a Bosch motor), which says :
A lightweight high-performance hydroformed aluminum frame, Bosch BES3 Performance Line Sport motor (250 W, 75 Nm), capable of sustaining speeds of up to 25 km/h, battery choice of 400 Wh, 545 Wh, 725 Wh or 800 Wh easy to install and remove from the frame
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Unquote.
I guess that means you that you cannot legally buy a bike motor over 250w, and certainly cannot legally ride it, but wh capacity can be far greater in numbers.
Battery Watt Hours really just shows how long battery will last under load before needing recharging; the higher the wH rating, the longer it lasts.