TheTS101 USB-powered soldering iron is a superb bit of kit.
Adrian Kingsley-Hughes/For soldering jobs where I've not had access to wall power, I've previously turned to agas-powered soldering iron . While it gets the job done, it's big and bulky and noisy, sometimes spits out flames, and needs regular topping up with gas.
The other day I upgraded to a new USB-powered soldering iron, and this one is amazing and is everything I've ever wanted from a soldering iron.
Also: How to solder: Tools, tips, and tricks to get you started
The TS101 USB-C-powered soldering iron is a portable, professional soldering iron that comes in a kit with everything you need -- the soldering iron, a USB-C power supply, a heat-resistant silicone cable, and even some solder.