For me, soldering on a battery has always been about gas—fill it up and go. Cordless soldering irons changed that, but they had a major drawback: a wall outlet or power bank was required.
((Until they invented quick battery replacement.))
The soldering iron I'm filming is the HS-03: https://s.click.aliexpress.com/e/_c3n...
#soldering #soldering iron #electronics #HS03 #fnirsi