I have found a lot of information that circles around what I'm looking for, but nothing that directly answers it. It is possible there is no right answer.
I am jealous of the Macbook MagSafe magnetic power connectors and plan to make my own. I will use these magnetic 2-pin pogo connectors with a standard laptop power adapter.
My initial plan was to clip the power adapter's wire 2" from the end, perform a lineman's splice, and solder the pogo connectors in the middle of the wire.
Assume the power adapter cable is stranded copper of an appropriate gauge. Splice will be done lineman style with solder on top and heat shrink tubing over that. The pogo connectors are rated for higher voltage and amperage than the power adapter.
My Concern: Will 20V/5A be too much for a simple soldering job? Will it overheat?
At what voltage/amperage does solder become unsafe and melt plastic/heat shrink tubing?
Is there an amount of current after which you should crimp instead of solder?
I want to know the general rule of thumb, if there is one.
I read that you must crimp in walls (110V), cars, and boats. Not much information on where to draw that line of safe/unsafe.
I want to make sure this is not a fire risk. Laptops are often plugged in and left unattended at home for long periods.