You just get a female DC Jack and connect red and black to positive and negative of the supply. That’s it! And I use it to recharge my portable vacuum, anything that has a DC Jack. Sometimes you lose adapter boomshakalala.
Sorry it is make I think just get this so you have both lol
https://www.amazon.com/Chanzon-Connector-Female-Security-Adapter/dp/B079R9WCG2/ref=mp_s_a_1_13?dchild=1&keywords=dc+female+jack&qid=1600632738&sr=8-13