Introduction: How I Built My Electric Bike Generator
DC 40 volt electric motor
solar power connection cable kit
10-24 locking nut to connect shaft
Step 1: Step 1
Take apart a DC 40 volt electric motor or just buy one. There 40 dollars.
Step 2: Step 2
I took off the resistance magnet from the bike stand and I was able to connect the shaft of the motor to the resistance wheel.
Step 3: Step 3
Now with the motor fitting the cover had to be mounted to keep the motor in place. I used a hacksaw to cut off a part of the cover because it didn't fit.
Step 4: Step 4
I tested if I was making volts when I peddled. And I did, so that means I could go on to the next step
Step 5: Step 5
Next I bought a solar controller which lets the right voltage of electricity from the motor go into the battery.
Step 6: Step 6
Then I added a Schottky diode to prevent back feeding from the battery into the motor which made the wheel spin.
Step 7: Step 7
I then put a 10-24 locking nut to connect the motor shaft to the resistance wheel so the motor would not just spin off.
Step 8: Step 8
I now had to mount the motor and cover to the bike stand so the motor would not spin around when I peddled.
Step 9: Step 9
Now I tested If I could charge an Ryobi 18v Battery. I had to connect the plug to an inverter, the inverter was connected to the load on the solar controller. It took 20 mins for 1 bar/1 amp hour to charge.
Step 10: Step 10
Finally I charged my iPhone. It took 40 minutes to charge 2 iPhones simultaneously.
Participated in the
Motor Vehicle Contest
2 years ago
Paul this is AWESOME!! So proud of you!