Dewalt 20V USB Type C Fast Charger

Things needed:
-Printed parts
-Optional 1/2" switch.
-4 M3x20 screws
-3 M3x6 screws
-Wire
-2 Red piggyback spade terminals (https://www.amazon.com/DZS-Elec-Connector-Semi-Insulated-Terminals/dp/B0776PY5JK/ref=sr_1_21?crid=2BH6D4RFCY7RM&dib=eyJ2IjoiMSJ9.cUHbZ1G2AYMbcJl8rPUvH1sXN6mUNZ2simExslSR21eEjtcNGoTBeULM5XpuWY0ewh2VbGJWnEg5uT2UO2Mfiv87k7Thy8onlIqUJ03-dPKM3qOD_Pwyo40467YIeqLi0TTe60n-JLY-o7rvOC_KuoeRkYRux6EWFJv8X4k1BQ9q3emZva55nqjeKMTph8vIFToosVCnD5pL3il_T9iO_w9idJf-qOPu6peNsJZalxc.dswOtqmhU_ZKEdQ5ssqFzq1GE4iDsSlysycZ5zSf1Ho&dib_tag=se&keywords=piggyback%2Bterminals&qid=1733265732&sprefix=piggyback%2Bterminals%2Caps%2C148&sr=8-21&th=1)
-1 Charging module (https://www.aliexpress.us/item/3256805065569438.html?spm=a2g0o.productlist.main.1.4354MRoNMRoNi9&algo_pvid=b1a7f522-6d8a-4991-8d7c-80fe3322829f&algo_exp_id=b1a7f522-6d8a-4991-8d7c-80fe3322829f-0&pdp_npi=4%40dis%21USD%216.03%212.03%21%21%216.03%212.03%21%402101fb0b17296180426264274e1d62%2112000032366426258%21sea%21US%212498947053%21ACX&curPageLogUid=d7UJfV05TI3E&utparam-url=scene%3Asearch%7Cquery_from%3A)

Print parts with supports, but I highly recommend that you put a support blocker on the terminal recesses.

Remove plastic from red terminals. Straighten out the tabs on the terminals. Solder wire to the terminals. Fish wire into terminal slots. Push terminals into recesses so that the spades are sticking out.

Install charging module with three m3x6 screws.

Connect wires from module to wires from terminals. Install and wire switch if you're using one. Fasten everything together with screws.

Never leave charger on while not in use, it will drain the battery to nothing. Keep an eye on your battery's charge level.

I tweaked the holder to fit the batteries better. Filled the mounting holes. Added holes in the model for spade connectors and wires. Added a middle and top section to house the USB charging board.