Ebike Battery to USB-C Dongle

A simple printed box to get a USB-C port from a max 14s Ebike battery. This will allow you to hook up to an ebike battery with a maximum 60v and get a 65W USB-C port.
 

Here are the things you need to buy all supplies can be found on AliExpress about $10 in parts before shipping/tax:
 

65W USB-C Board: https://s.click.aliexpress.com/e/_msuJ98y

Buck Board 60v to 24v: https://s.click.aliexpress.com/e/_mtteqAc

20AWG Silicone Wire: https://s.click.aliexpress.com/e/_mKXfNfi

You will need to assess what connector to use to pull from the E-Bike battery. Some will allow you to pull power from the charge port if it's a common port BMS some will not if it's a split port. 

If you need help figuring out what BMS type you have read this article: https://cellsaviors.com/blog/separate-vs-common-port-bms
 

Assembly is pretty easy but the order is very important due to tight constraints. 

1. Solder wires to output on buckboard from the bottom up (leave a lot of slack you will be fishing this through), solder wires to the input top-down (these will be going to the ebike battery so leave yourself slack, DO NOT MAKE LONGER THAN 8in). 

2. Put the buckboard into the box fishing the output wires through the holes in the common wall and the input wires through the small hole in the side. Make sure it is not on the USB-C side with the USB-C port oval. Use hot glue to hold the buck board in place. 

3. Cut the output wires to length and solder to the input on the USB-C board from the top down. Affix the USB-C board using hot glue. 

4. Make sure wires are neat and tucked in. Place lids on both sides. 

5. Finally, determine how to connect and what type of connector you will need to hook up to your E-Bike battery.