Pulling a trailer behind your bike has a feeling of freedom and exploration. However, the reality is that pulling a big, heavy box behind a bicycle can be incredibly exhausting. So [drew] went back to the drawing board of his bicycle camper, added a motor, and made some adjustments on the way.
We reported his first attempt at a bicycle trailer; This update covers the future improvements he mentioned. First, he strengthened the axle, and the trailer bracket was directly fixed on the chain strut with bolts to increase the strength. Then he made a custom battery pack with 18650 batteries, with a power of less than 3 kilowatts. Next, he installed a hub motor kit on the rear wheel of the bicycle. Finally, a 100 watt flexible photovoltaic solar panel is added on the roof and connected to a small battery pack inside. The battery pack provides USB and several AC sockets for notebook computers and mobile phones during camping. [drew] did point out that he could charge the large electric bicycle battery with a smaller battery pack, but since the electric bicycle battery is much larger than the small battery, it needs several cycles.
[drew] attended a music festival. He was happy to report that even if he did not step on the pedal, the battery stability was better and the endurance was also excellent. We like to see a good project reviewed again, and we hope (drew) can get some benefits from his camper. Play the video after the break.