URB-E Pro-GT

[Talon]

I am trying to modify a URB-E Pro-GT to get around 25-30 MPH, I have a 3 1/2 x 3 1/2 x 18" long square battery tube to play with. I have a 2 5/8 x 2 5/8" rear frame that could except other controllers if needed. The present battery is 36 volt 10ah hour battery. The rear wheel drive is said to be 350 watt motor. I have found a 48 volt 11.5ah battery from Luna Cycle that would fit in the battery tube perfect. I was wondering if anyone knows if I would be able to get some speed gains while just changing out the battery? Any advice would be helpful Don't think that I have not done my homework with only "1" post. I am a Professional Mechanic for 35 years

 

[ElectricGod]

You will need a new motor controller. The existing controller won't handle the voltage and it's locked down to a specific speed anyway...which you are intending to exceed a good bit. Those motors are tiny geared hubs, so who knows how much more wattage you can pump through them before they burn out. Worst case, give it a shot and replace it with a better option when it dies.

I'd go with the PowerVelocity 6 fet controller. You can find PV on endless sphere. He will get you set up with a very small controller that will be very reasonably priced and far more powerful for lots less money than URB-E charges for their puny controllers. After that, it will require some rewiring to adapt the URB-e systems to work with the new power source.

That down tube will hold quite a lot of batteries if you remove all the other stuff in it. Use the smaller square frame for your controller.

 

[Talon]

You will need a new motor controller. The existing controller won't handle the voltage and it's locked down to a specific speed anyway...which you are intending to exceed a good bit. Those motors are tiny geared hubs, so who knows how much more wattage you can pump through them before they burn out. Worst case, give it a shot and replace it with a better option when it dies.

I'd go with the PowerVelocity 6 fet controller. You can find PV on endless sphere. He will get you set up with a very small controller that will be very reasonably priced and far more powerful for lots less money than URB-E charges for their puny controllers. After that, it will require some rewiring to adapt the URB-e systems to work with the new power source.

That down tube will hold quite a lot of batteries if you remove all the other stuff in it. Use the smaller square frame for your controller.

Are you talking about this controller? I don't see a 6 FET controller http://powervelocity.com/index.php?id_product=54&controller=product

 

[ElectricGod]

You will need a new motor controller. The existing controller won't handle the voltage and it's locked down to a specific speed anyway...which you are intending to exceed a good bit. Those motors are tiny geared hubs, so who knows how much more wattage you can pump through them before they burn out. Worst case, give it a shot and replace it with a better option when it dies.

I'd go with the PowerVelocity 6 fet controller. You can find PV on endless sphere. He will get you set up with a very small controller that will be very reasonably priced and far more powerful for lots less money than URB-E charges for their puny controllers. After that, it will require some rewiring to adapt the URB-e systems to work with the new power source.

That down tube will hold quite a lot of batteries if you remove all the other stuff in it. Use the smaller square frame for your controller.

Are you talking about this controller? I don't see a 6 FET controller http://powervelocity.com/index.php?id_product=54&controller=product

PM him directly on ES. He doesn't list all of the controllers on the web site. That was the 12 fet controller. I have 2 of those, but they are overkill for your needs. He sells them with the IRF4110 mosfet. I have been pushing Vadym to use the AOT290 mosfet instead of the IRF4110. It's higher wattage, is faster switching on and off and has less internal resistance. It's generally a much better mosfet than anything else out there right now. Anyway, he's specifically making the 6 fet controllers with the AOT290's. The 6 fet controller with AOT290's in it should be capable of about 2000 watts which is more than enough for your needs. I've never cracked open the high wattage URB-E controller, but I bet it's at most 500-600 watts. IE: Waaaaay over priced, way UNDER capable and lame all at the same time.

 

[Talon]

You will need a new motor controller. The existing controller won't handle the voltage and it's locked down to a specific speed anyway...which you are intending to exceed a good bit. Those motors are tiny geared hubs, so who knows how much more wattage you can pump through them before they burn out. Worst case, give it a shot and replace it with a better option when it dies.

I'd go with the PowerVelocity 6 fet controller. You can find PV on endless sphere. He will get you set up with a very small controller that will be very reasonably priced and far more powerful for lots less money than URB-E charges for their puny controllers. After that, it will require some rewiring to adapt the URB-e systems to work with the new power source.

That down tube will hold quite a lot of batteries if you remove all the other stuff in it. Use the smaller square frame for your controller.

Are you talking about this controller? I don't see a 6 FET controller http://powervelocity.com/index.php?id_product=54&controller=product

PM him directly on ES. He doesn't list all of the controllers on the web site. That was the 12 fet controller. I have 2 of those, but they are overkill for your needs. He sells them with the IRF4110 mosfet. I have been pushing Vadym to use the AOT290 mosfet instead of the IRF4110. It's higher wattage, is faster switching on and off and has less internal resistance. It's generally a much better mosfet than anything else out there right now. Anyway, he's specifically making the 6 fet controllers with the AOT290's. The 6 fet controller with AOT290's in it should be capable of about 2000 watts which is more than enough for your needs. I've never cracked open the high wattage URB-E controller, but I bet it's at most 500-600 watts. IE: Waaaaay over priced, way UNDER capable and lame all at the same time.

I am trying to modify a URB-E Pro-GT to get around 25-30 MPH, I have a 3 1/2 x 3 1/2 x 18" long square battery tube to play with. I have a 2 5/8 x 2 5/8" rear frame that could except other controllers if needed. The present battery is 36 volt 10ah hour battery. The rear wheel drive is said to be 350 watt motor. I have found a 48 volt 11.5ah battery from Luna Cycle that would fit in the battery tube perfect. I was wondering if anyone knows if I would be able to get some speed gains while just changing out the battery? Any advice would be helpful Don't think that I have not done my homework with only "1" post. I am a Professional Mechanic for 35 years

I have taken your recommendation for controllers for my URB-E PRO-GT. Will I be able to adjust the controller to a 10 inch wheel? Power-Velocity told me that they should have the 6 FET controllers on Monday or Tuesday. It will be a dual mode that reads both sensor-ed and non sensor-ed ???? Please let me know if this controller would be correct for my 350 watt motored 48 volt up from 36 volt setup?? I have a 10 inch rear wheel drive PRO-GT URB-E :lol: Thanks for all your help Mr GOD :wink: