48V battery for nominal voltage DC36V / 48V

[apiel]

Hello,

I don't really understand all those information when I try to buy a kit. I have a 48V8.8AH battery from another bike and I wonder if it would work with this kit:
"Schuck 36V 350W 16-inch Front Electric Bike Conversion Kit"

Motor: 350W brushless gear motor
Maximum current: 15 ± 1A.
Nominal voltage: DC36V / 48V.
Speed setting: 1-4.2 V.
Rated current: 7 A.
Brake Input: Low Level
Low voltage protection: DC30 / 40 ± 0.5 V.

1) 36V 350W front wheel rim x1 (without tyre)
2) 36V-15A Controller x1

I hope I gave enough information.

(also could I use the wheel with another 36V controller, to exchange the wheel from one bike to the other?)

 

[dogman dan]

Yes, your controller is an example of one that will work on 36v to 48v. So fine to use your other battery with it.

However, you might need to change a setting on the display to make it read battery level right. Set to 36v, it will tell you the battery is always full. Empty on the 48v battery will be about 42v. The low voltage protection is set for 36v, at 30v. So your controller will allow you to discharge the 48v battery too low, if the battery does not have a bms to protect itself.

You can run the wheel on other controllers, but it may need changes to the order of the motor wires. To avoid that problem, look for controllers that have self learning or self study. Then the other controller can adapt to any motor easily.

 

[apiel]

thank you for the response

 

[apiel]

Another question, how does it work for the motor, will the controller adapt automatically the 48V from the battery to the 36V of the motor, or does the voltage doesn't even matter for the motor?

 

[dogman dan]

The motor doesn't really care what voltage, within a certain range. It would be too weak to run well on 24v, and start to tend to overheat too fast above 48v. Bigger motors can go to 72v, or more if big and heavy enough.

The controller does not adapt, its just built with internal parts capable of 48v. Some 36v controllers have a lower limit, but yours is built for either voltage.

48v will result in more watts, and a higher top speed. So more power and speed when the same kit is used with 48v.

The controller max amps is 15, it will limit itself when the motor tries to pull more. Amps x volts is watts. So about 600w max on 36v, and 750w on 48v.