750 watt hub motor to 1000w conversion

Verny

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Jan 7, 2023
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First Post. Hi bike nuts like me. I have an almost new aventon aventure fat tire bike. 750 watt bafang motor. I live in the mountains and would like to upgrade the motor to a 1000w Bafang hub motor. Anybody know how to do this? Thanks
 
Thank you - on your second picture, is there only two wires connected to the connecting block ?
Do you need to press your power button on your battery to wake it up to ride, or does your button cluster on the handlebars do it?
The + & - (Red & black) came factory soldered to the battery base directly from the controller. In the pic you can see I bypassed that connection to the battery combiner with an XT60 connector. The other 2 XT60 connectors you see are for the extra battery, and controller.
 
The + & - (Red & black) came factory soldered to the battery base directly from the controller. In the pic you can see I bypassed that connection to the battery combiner with an XT60 connector. The other 2 XT60 connectors you see are for the extra battery, and controller.
Yes, I may not have made myself clear. Do you have any more conductors going to the controller other than the plus and minus from the battery?
 
Yes, I may not have made myself clear. Do you have any more conductors going to the controller other than the plus and minus from the battery?
That isn't the controller, it's the battery combiner pictured. But yes, one of the plugs goes the controller. From the controller are other plugs, like to the throttle, PAS sensor, headlight, brakes cut-offs, display.
 
That isn't the controller, it's the battery combiner pictured. But yes, one of the plugs goes the controller. From the controller are other plugs, like to the throttle, PAS sensor, headlight, brakes cut-offs, display.
I just revisited this thread, I should have asked back in September - you aren't using the stock controller anymore, are you?
 
So if I wanted to add...
  1. a second battery,
  2. a battery combiner,
  3. and an aftermarket controller plus display for more speed.
But keep my working stock battery in the frame tube...

I could still keep my Shengyi motor and connect it to the new controller,
and connect the new controller to the correct terminal on the battery combiner,
and then connect the orignal in-tube battery the way you did on one of the battery combiner terminals and the other battery on the other terminal and have a 30 mph top speed?

Did the aftermarket controller plug into everything including the motor without a bunch of splicing?

I'm sorry to keep bugging you, but I'm very enthusiastic about doing this if it's possible.
 
So if I wanted to add...
  1. a second battery,
  2. a battery combiner,
  3. and an aftermarket controller plus display for more speed.
But keep my working stock battery in the frame tube...

I could still keep my Shengyi motor and connect it to the new controller,
and connect the new controller to the correct terminal on the battery combiner,
and then connect the orignal in-tube battery the way you did on one of the battery combiner terminals and the other battery on the other terminal and have a 30 mph top speed?

Did the aftermarket controller plug into everything including the motor without a bunch of splicing?

I'm sorry to keep bugging you, but I'm very enthusiastic about doing this if it's possible.
Yes. I used a 48v 30a Bafang controller and T1 touch display. It came as a kit from Accolmile on Amazon when I got the G062 1000W hub motor. I bought a right-hand twist throttle separately from same seller as the stock throttle isn't compatible, neither is the torque sensor or lights or anything else. If you use same controller that comes with the 48v Bafang hub motor, it's 100% compatible with the Shengyi motor and you'll get 30mph. It does eat more battery, so definitely use a 2nd battery. Buy a Panasonic if you can afford it from UPP; a 20ah Panasonic is better than a 24ah LG battery. If you go with the 1000w Bafang G062, youll get 4-5 more mph. Just be sure you get the 190mm instead of the 175mm version.
 
Yes. I used a 48v 30a Bafang controller and T1 touch display. It came as a kit from Accolmile on Amazon when I got the G062 1000W hub motor. I bought a right-hand twist throttle separately from same seller as the stock throttle isn't compatible, neither is the torque sensor or lights or anything else. If you use same controller that comes with the 48v Bafang hub motor, it's 100% compatible with the Shengyi motor and you'll get 30mph. It does eat more battery, so definitely use a 2nd battery. Buy a Panasonic if you can afford it from UPP; a 20ah Panasonic is better than a 24ah LG battery. If you go with the 1000w Bafang G062, youll get 4-5 more mph. Just be sure you get the 190mm instead of the 175mm version.
I just caught back up with this thread due to some log-in issues.
Regarding combining the OEM Aventon battery, my Abound (Cargo bike) can have it's battery "turned on" by the control pad on the bars or by the little button on the side. I can also turn it off by either.
I was wondering specifically about your set-up and how it managed this. Also, when you turn youre OEM battery on, does it stay on as long as you are drawing current? DO you know what the max sustained current of the OEM battery actually is? (The conductors from my battery connecting block going to my controller are quite small - maybe 14 gauge, so I wouldn't expect there to be a lot of current there with everything OEM .
 
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