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Last active August 24, 2023 20:19
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diy-e-bike-conversion-readme.md

D.I.Y. E-bike conversion

image

Components

  1. Front G311 Kit - Front wheel pre-laced with geared hub motor - $300
  2. Motor controller, C4820-GR_Higo - $100
  3. Thumb throttle, attached to handlebars - $15
  4. G311 Torque Arm, attached to front dropouts - $20
  5. 36V LiGo Battery 🔋 (2.7 amp hours) - $120 - $360
  6. 36V Luna Cycles -🔌 Mini Charger (4 amps) - $59.96

Total: $615.95 - $854.95 *Price of 1 battery vs. Price of 3 batteries

Other accessories I've added

  1. Front light, connected to battery
  2. Rear light, connected to battery

Other components I want to add in the future

  1. Small Bluetooth speaker, for fun and moral support
  2. Odometer, so I can see how many miles I've biked total and how many miles I've biked that day. Maybe a bike computer screen so I can see battery health better, too.

Online retailers

Range

  • The longest I've ridden it round trip is 15+ miles.
  • Extending the range: The charger is pretty light, so I can ride with my charger and charge the batteries at the destination.

Battery

  • No battery life display: There's a battery life display on the batteries themselves, which I keep in my rear pannier. Otherwise, there's no display so I have to remember to check the levels before I ride.
  • The batteries are heavy! I used to have them on my front basket, but the weight affected my handling too much. The bike rides a lot better with the batteries in the panniers.
  • The batteries are easily removable. When leaving the bike parked outside, I can take simply unplug the batteries and take them with me.
  • The charger is light and uses a regular wall outlet. I can bring my charger with me on rides, so I can charge my batteries at my destination.
  • I charge the batteries up to the 80% level, for optimal battery health. The Luna Cycles charger makes it possible to charge up to 80, 90 or 100. It takes roughly an hour or so to charge all 3 batteries up.

Design concerns

  • I have bar-end shifters. As my e-bike throttle is a thumb throttle on the right-hand side, this means I cannot shift my rear gears while I'm also throttling the bike. You might want to put your e-bike throttle on the left-hand side so you can shift gears more easily.
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