Short story: I want to solder cable to a pretty delicate looking board. There is not a lot of room to get at things so I need to be careful not to just screw everything up plus the PCB looks fragile (that could just be my lack of understanding). What should I do to avoid killing it while successfully attaching the new wires?
Longer story: I have two eGo-T vape batteries which have been physically busted for various reasons. The parts of the official one all work (I know this because I was careless taking it apart and burned my fingers). I want to build a mod or two with them. The last time I used a soldering iron was over half my life ago and so I figure I have probably forgotten anything useful. The board on the 510 thread head has the little board and button all in place but the wires are way too thin for the current that they were coping with (factory/design fault) so I want to put a thicker more durable cable on before I set the head into a box of some kind and rig up a battery (perhaps with some form of variable voltage regulator). Basically with the first build I am just wanting to make a new case and replace the wiring with something that is up to the job. What I am worried about is cooking the little board and making it useless.