reibenreve
1 mW
- Joined
- Jul 12, 2015
- Messages
- 15
neptronix said:If you order the default winding, the 4T..
For a 26" wheel, you will want a controller and battery capable of pushing 60 amps continuous during acceleration or hill climbing in order to hit the top speed of the motor and have decent torque.
60A x 48V = 2880W peak.
Your continuous wattage at 100% speed will be about 2000W, or approx. 41A continuous.
You'll want nothing smaller than a 12FET 4011, or preferably 3077 FET controller in order to do this. I run an 18FET 4011 controller myself with this winding, because i wanted large amounts of thermal overhead, as i run about 90-100 amps. Even the 12FET 3077 ( lowest resistance FET type is the 3077 ) would get hot on 80A.
For this winding, i would use either a RC Lipo type pack above 20AH or A123 pack around 20AH as well in order to deliver the needed current. 20C Lipo would work.
If you want something other than the two above chemistries, you're going to need 40-60AH worth most likely, if you're dealing with a 2C-5C chemistry. 1C is out of the question unless you can figure out how to jam 50-60AH into the triangle.
The 4T is an amp guzzler, not a volt guzzler..
Hi neptronix, I was looking into purchasing a leafbike motor and while researching on the reliability of leafmotor brought me to your valuable post and testing of leafmotors. If you are still active on the forum I would like to seek your opinion on my build. I am doing up a motorised kick bike and will be using the new 16inch leaf bike motor, which peter mentioned to me in an email that default winding 4t default rpm is at 731.
I will be using the new LG MJ1 pack at 28AH coupled with 18fets controller pumping 60amp throughout.
My kick bike runs 20" front 16" rear, and motor is going to be in the rear. The new/updated 16" 1000w.
You think the default rpm be capable of doing 40mph with a 180pounds weight?