It looks like it might be code 9, which is 340 rpm at 36v. That would make it a bit fast for 48v. The only way to be sure is to see how fast it goes on the speed display.Hope this helps
It looks like it might be code 9, which is 340 rpm at 36v. That would make it a bit fast for 48v. The only way to be sure is to see how fast it goes on the speed display.Hope this helps
Motors don't have torque. Instead, they give torque that depends on the current and voltage. Maximum current depends on the controller, and it varies in accordance with speed. When manufacturers mention torque, it's meaningless unless they say the conditions under which they measured it, which are speed, current and voltage.Also, if it is G010 or G020 makes quite a difference. The G010 has a lot less torque.
You need to know the maximum current the battery can deliver. If you fit a bigger controller that takes a higher current than the battery can deliver you will ruin the battery.My batteries are 36v 21ah and 48v 21ah if that helps
That changes things. 340 rpm is OK for 48v. I think 17A would be a happy maximum. I can't think of any circumstances where you'd want more power than that with 20" wheels.20 inch
Yes, it's all a bit hand waving. Just whatever measure the company uses, the result is lower for the G010 than the G020 and the difference is noticeable in the real world.Motors don't have torque. Instead, they give torque that depends on the current and voltage. Maximum current depends on the controller, and it varies in accordance with speed. When manufacturers mention torque, it's meaningless unless they say the conditions under which they measured it, which are speed, current and voltage.
In any DC motor at any fixed voltage, torque is more or less proportional to current, provided that the current is in a suitable range for the motor.
Nothing will change. The power comes from the controller. The only reason to upgrade the motor would be because your present one gets too hot or because you want to go for a higher current controller. What's more important is the motor's maximum speed.hi everybody I was thinking of upgrading my Bafang rear hub motor from 250watt to 750 watts I have a 48v 21ah battery would it work and of course I have a 22a KT controller
Thank you for the speedy reply what I mean is if I install 750watt 48v motor with a KT 22A or 25A controller will I get more torque and power ,and will my 48v 21ah battery be big enough to handle such a motor.Not sure the question you are asking, but am I correct in saying you have a Bafang G062 rear hub, 20" wheel, probably winding code 9 , nominally rated 250w and you are running it with a 36v battery.
I think your existing motor will probably work fine with a 48v battery (the 21ah is just the battery's capacity, doesn't really affect things) and a 22a KT controller. I suspect you will quickly hit the motor assist limit if it set to 28km/h so it might feel a bit jerky as the motor assist cuts out when it reaches that limit and then cuts in again when you fall below that limit.