Crimp connections

If it's bare copper as opposed to tinned, and the connection is "outdoors", I either tin the wires first or use dielectric grease.

Otherwise, no

It is1/0 DLO locomotive wire, it looks like it is tinned.

Didn't use anything on the cables. I took out my converter, replaced it with a 2000 watt Xantrex inverter/charger and added four more 6v batteries. I made up new 4/0 battery cables for all connections. Used battery lug terminals, an impact crimper and heat shrink around the terminals. That was in 2006.
Don't know what would be used on the wire, nothing is used on commercial cables you would buy.

Ok thanks.

I use a good quality profesional crimping tool.. that's all folks
I may seal with GOOP post crip but bare wire to bare wire works well.

Last job I just used the crimp part of my Needle nose but that's a 1 amp hookup for indoor use only. (The device it feeds is an ID-51A+2)

I don't use anything on the wire, but I do use a pro crimping tool and fittings with shrink tubing on them.

if i want to make sure a crimp connection will last i crimp the lug on and then solder the lug.
some have a hole just in front the crimp part the ones that do not i drill a small hole in front of the crimp and heat the lug with a small butane torch wile feeding solder into the hole till it is full.
i have cables i made back in the 80's that are still in use today that work and look as good as the day i made them.

Thanks for the replies, I will not worry about the wire and just goo up the connections under the truck.

shastagary wrote:
if i want to make sure a crimp connection will last i crimp the lug on and then solder the lug.
some have a hole just in front the crimp part the ones that do not i drill a small hole in front of the crimp and heat the lug with a small butane torch wile feeding solder into the hole till it is full.
i have cables i made back in the 80's that are still in use today that work and look as good as the day i made them.

Exactly. I use welding cable (available by the foot at any LWS retail store), Tweco solid copper connectors and I remove enough insulation to tin the end, insert the end in the Tweco connector and then solder it in. I like to use welding cable because it will be solid conductor grade copper stranded wire and the insulation jacket it thicker neoprene.

I use deoxit.