Electric Pocket Bike 1000w

About a year ago i had decided to start converting my old broken noisy chinese thing into an electric mini moto. I have had experience with motors and electronics in other projects before; chinese electric dirt bike, electric bike, electric scooter etc...

And a year later here i am showing you how i have built this monster from a rubble. It had been sitting in my garage with the rolling chasis and the motor attached, nothing else had been done. I had no money to buy a crontroller and had not had a chance to add or modify it.

These are the steps and proccesses i took to build my bike:

First of all i dug out the mini moto with the 1000w motor attached. the motor is 36v which is the same as the system i am running. I will hope to make it to 48v to get more speed.




I then got all the materials together to begin to make the circuit.
1. 2 batteries of 12v 12ah
2. 1 battery of 12v 7ah
3. Uni-8 36v 100amp controller from http://www.4qd.co.uk
4. Magura throttle and matching grip
5. Key switch
6. Battery level indicator of 7 LED's



I then decided to make a battery pack out of the three batteries to make it easier to charge and put the bike together. :P I also attached the LED battery indicator.


This is what the circuit/setup looked like before attaching it to the bike.




This is the final bike;



Specifications:

Owner: Jake Saunders
Location: Wellington, NZ
Email: jake27surf@hotmail.com
Vehicle: chinese petrol mini moto
Motor: 36v 1000w unite motor
Controller: 4qd uni-8 100amps 36v
Batteries: 1 Chinese 12v 7ah 2 Maplin 12v 12ah
System Voltage: 36v and i want to up it to 48v
Top Speed: 20-25mph --- around 30 - 35kmh
Range: Around 5-8 km
Conversion Time: 2 days on and off working on it
Conversion Cost: 250$ or €200 with most of the products coming from the USA.



Thanks for looking. If you have any questions feel free to email me.