Replacing Hub motors on personal electric skateboard

In this project, my modified skateboard needed its hub motor wheels changed. The wheels are shown on the left and below. They show the wheels severely damaged and weathered after around 200 km of use.

The old hub motor was removed and the new red hub motor was installed which was bought on Ali-express.

The main power wires were connected to the correct colours of yellow to yellow, blue to blue and green to green.
However, the hall sensors connectors for the hub motors are connected in a different sequence. This is shown below. The correct sequence was identified by trial and error. This trial and error did not damage the circuitry. But do try on your own risk.

Adding wireless charging to a power bank

The purpose of this project is to add wireless charging to a typical power bank. This addition to the power bank will provide ease of charging without the hassle of cables moving around. This project can only be done to power banks with a plastic case. The wireless receiver and wireless transmitter can be obtained from Ali-express for only a couple dollars. The original wireless receiver shown on the far left had a micro USB plug for my phone but had unfortunately broken off. This receiver was re-purposed for this project.
The power bank was carefully opened up with a non-metallic pry tool. Do this project at your own risk. Lithium cells can be easily punctured and start a fire or explode.

There was a + and - connection on the wireless receiver, which was carefully soldered to the input pins of the micro USB port of the power bank.














On the right shows that the power bank properly charges with the wireless charger.

 The power bank continues to charge with the case reattached.