Marcelo1969
1 mW
- Joined
- May 8, 2020
- Messages
- 12
I got a Taotao scooter that came with a 60V lead acid battery and a 500W motor. It has a top speed of 40km/h. The scooter feels solid and it feels that it can handle a higher speed. I have the impression that the motor actual wattage is higher.
The math is simple.
If the battery can deliver current between 10A to 20A, the wattage of the motor ranges from 600W to 1200W (W=Voltage*Current). When you look at the specs of motor kits on in China (where there is no wattage restriction) , the rated speeds for 60V kits are as follow:
1200W motor, 35A controller, max speed of 50km/h
1500W motor, 50A controller, max speed of 60km/h
I have the impression that the difference in these kits is determined by the controller capacity and the motor capacity is irrelevant, for several reasons (any thoughts):
1. It is a lot easier to customize the specs of an electronic (controller) than a mechanical/electric component (motor)
2. I doubt the manufacturers would customize specific motors for all the different combinations of voltage and current offered
3. Motors endure a much higher peak wattage than the nominal wattage
Based on the above it looks like that a new controller would have the potential to increase the max speed of my bike. Any thoughts on that? Have you guys done a similar upgrade to a similar bike? How did the max speed and mileage change? Please find attached a photo of the controller that came with the bike.
Thanks!
The math is simple.
If the battery can deliver current between 10A to 20A, the wattage of the motor ranges from 600W to 1200W (W=Voltage*Current). When you look at the specs of motor kits on in China (where there is no wattage restriction) , the rated speeds for 60V kits are as follow:
1200W motor, 35A controller, max speed of 50km/h
1500W motor, 50A controller, max speed of 60km/h
I have the impression that the difference in these kits is determined by the controller capacity and the motor capacity is irrelevant, for several reasons (any thoughts):
1. It is a lot easier to customize the specs of an electronic (controller) than a mechanical/electric component (motor)
2. I doubt the manufacturers would customize specific motors for all the different combinations of voltage and current offered
3. Motors endure a much higher peak wattage than the nominal wattage
Based on the above it looks like that a new controller would have the potential to increase the max speed of my bike. Any thoughts on that? Have you guys done a similar upgrade to a similar bike? How did the max speed and mileage change? Please find attached a photo of the controller that came with the bike.
Thanks!