3S Lipo trouble burned up ??

[monel_funkawitz]

To solder those connections, you need to lightly sand the metal completely where you are going to solder. Then put some flux on it (I use Kester 44), then heat the metal with a good high watt soldering gun. Touch solder to it, and move the tip around in little circles till the area is plated in solder.

Then you solder it like a normal connection.

Remember, the key here is good flux and sand the connection before you start. You must be down to the parent metal.