Hi all,
Just got my BBS02B 750W this evening, with battery 48v from ALiexpress _https://fr.aliexpress.com/store/1379035?spm=a2g0w.12010608.0.0.73be7d01YEEAho_ i connected it up to the bike, plugged battery in and turned it on to setup the hydraulic brake sensors, it turned on fine, all good ...