jordanjozsef
1 W
- Joined
- Oct 3, 2018
- Messages
- 53
I just finished my diy ebike, with a 36V 300W hub motor and a 48V controller / battery pack. The controller's max. amp is 18A, but I found out it was only 14A, no matter what I did, it topped out at 14. My max. speed is 47-48 km/h which is pretty nice from 14A. I did the shunt mod, because why not, I was surprised, it draws 24A now and gets up to speed faster, but over 40 km/h, there's no benefit, the top speed is the same and the amps go back to 14A at top speed, but I though I could go faster with more amps, but now only the peak amp is increased. I'm wondering why can't I go faster, because the no load speed of the motor is over 60km/h, so I guess even if I do the shunt mod, the controller is still a 350W controller. Or maybe it's because of the hub motor? Anyway, the motor and the controller wasn't even warm, so at least the heat is not a problem (yet).