I have this motor with a 6s2p battery and am very happy. Depending on your gearing of choice, you can either get better startup torque or higher topspeed. I get up to 35kmh with 15t / 36t and 76mm wheels.
I would suggest maybe a 3p just for some head room. Is it flat where you live? if so 2p should be ok. If you go with the 2p I would suggest a 40/45amp bms that way it will cut the load if you draw too much current and it won’t ruin the cells.
He lives in Hamburg so pretty much flat all along. But i don’t want it to have a big voltage sag etc … so might go with 3p i guess. What BMS do you suggest for 6s3p?
Most will cut the load I think or maybe they do just fry I’m not sure. I got the impression that they would stop the current from flowing and blowing up other things. With the 3p it will be rated at 60amps from your batts so the first bms you were going to get will be good
Are you planning on using a VESC? If so go with a lower kV motor and a 10S2P. It’s only 2 cells more than a 6S3P and you’d have significantly more power. Plus your VESC would stay cooler.
Also you probably won’t need a motor that big for the kind of power you’re looking for. A 6354 would be fine if you wanted to save some weight.
Also most people reccomend Samsung 30Qs over 25Rs since they preform better despite their rating.
Fair enough … What would you say is a good setup for a lightweight, low speed but occasional burst? He just needs to get from A to B on mostly flat ground and i don’t want it to sag or anything like that. quality is a must