Inside the YZPOWER charger from Aliexpress

In case anyone was wondering what’s inside these chargers bellow are some pics. This is the 8A model but I noticed there are 2 potentiometers, I’m assuming one is for voltage and the other for current but I have no idea which is which right now. I’m likely going to try lowering this down to 5A so I can use 2.1x5.5mm jacks for charging.

The link to the Aliexpress listing:

Also, this charger is not backpack friendly.