My good ol' trusty TS100 soldering iron which makes all my #DenCo's, and now a new #Pinecil. Both run on 12V barrel plug or USB-C PD. The Pinecil is about 1/4th the price of a TS100.
Incorporating a Powerpole splitter to allow for simultaneous charging of my #DenCo battery while powering the the radio and having a jumper that can go out to my Maestro Evolve III #craptop.