Battery lugs

[Mr V]

If you are going to use the compression terminals don't bother with a flat head screw driver you need a #2 Robertson to properly tighten them. Our Canadian teams are more likely to have one available but for those of use that are in the US you can find bits or a screw driver at an electrical supply place, one that deals in house wiring supplies and tools. For the past 10 or more years the screws in electrical panels and the circuit breakers that go in them use the same dual drive screw and professional electricians will not use anything but the square drive.

If you want to use the crimp on terminals then you really need the Brundy crimper or a hydraulic one if you want a long term reliable connection. They are not intended to be soldered they have a slot to verify that the wire is fully inserted which precludes proper soldering. Proper soldering of battery lugs requires the use of solder pellets that are sized to the cable and lug to provide the proper amount of flux and solder. Personally for the automotive battery cables I make I only do the solder style for a much better long term connection.