[CQ-Contest] Any good outdoors poratblesoldering tool?

[Fco. Luis Delgadillo]

I need to re-solder a #14AWG  copper wire that became unsoldered at the top of the tower.

I'd  rather prefer to solder it using a portable outdoor soldering tool (if tsuch thing exists)
 in the top of that tower than
 trying to bring it down due to multiple antenas and feed lines on the way.
¿Any suggestions?

Thanks in advance

Luis 4A2B/W2GO