Lithium dielectric grease on battery bullets?

[kfxguy]

Think of a loose battery terminal on your car...its still making contact to run lights, radio, other accessories, but once you hit it a high amp pull from the starter....it's dead....loses contact.

This.

[SD Eracer]

Not this. It doesn't apply to this example. There is nothing LOOSE, the tension is still very high.

I guess I'm going to have to do a resistance test to compare the stock "impossible to remove tension" to the "just barely able to remove tension", and see how much resistance there actually is.

[kfxguy]

Not this. It doesn't apply to this example. There is nothing LOOSE, the tension is still very high.

I guess I'm going to have to do a resistance test to compare the stock "impossible to remove tension" to the "just barely able to remove tension", and see how much resistance there actually is.

It's not that serious. But add in heat and 200+ amps of current to the mix and see if the resistance is higher. Just testing one side to the other tight and looser isn't going to tell you anything. I think the higher the current is, the higher the heat and higher resistance. I could be wrong, but I doubt it. There's a reason those connectors are so tight and they perform quite well.

[SD Eracer]

I agree, but in the end, aren’t these bullet connectors designed to be disconnected by hand?

If you using Castle Creations 8mm connectors, you would know that the force to just connect them is high, and forget about disconnecting them using your bare hands.

My minuscule adjustments of the male prongs just lowers the tension just enough to pull them apart by hand. And again, still harder to remove than smaller bullets.

However, I will say that I don't run 200+ amps of current. My boats are essentially 6S systems running 60C/120C batteries pulling on 4082 2000kv motors. My Genesis is probably a bigger amp hog than my HPR since its a single drive, but the amount of heat I get from my battery connectors is about the same I get from my stock Aquacraft 4S systems using Castle 5.5mm connectors, which is to say very low.

In the end, just do what you are comfortable with.

[kfxguy]

So I cleaned out the dielectric grease and used a little paint brush to apply some copper antiseize. Omg. Big difference. Much easier to pull apart. I like this!

[ray schrauwen]

It's not abrasive I hope?

[kfxguy]

It's not abrasive I hope?

No it's not. Finely ground copper particles in it. I measured the resistance of the stuff and it's not really conductive like they claim. Maybe when the lube dries out of it. I dunno. I'm gonna run it this weekend see if I notice any thing different with the connector temps.

[785boats]

The silver conductive grease is better than antiseize. for connector contact surfaces. Antiseize is for threads to stop galling, especially with stainless steel bolts. We use antiseize on the bolts & conductive paste on the face of the lugs & bus bars at work.

[kfxguy]

The silver conductive grease is better than antiseize. for connector contact surfaces. Antiseize is for threads to stop galling, especially with stainless steel bolts. We use antiseize on the bolts & conductive paste on the face of the lugs & bus bars at work.

I know but man the silver paste is outrageously expensive. How bout this stuff:

http://www.ebay.com/itm/2-ounce-Tub-...UAAOSwqu9VBIib

[kfxguy]

Ok, I had some Amazon credit and found a little tube of mg carbon conductive grease. Ordered that. I like the antiseize but I put a meter on it and it's not conductive. Rather have something conductive while I'm at at

[78MaicoRider]

I have performed quite a bit of conductivity testing in the past. A lot of it on RF gaskets as well as switch contacts and the like. The results were surprising at first until really thinking about what happens when putting 2 pieces of metal together and expecting good conductivity. Silver while being most conductive scored poorly. It most often had higher resistance readings that other materials. This is due to the hardness of silver. Tin consistently had very low contact resistance and on par with gold (real gold not just color). The softer the material, the more the two surfaces can conform to each other. Contact pressure plays a large roll as well. It's all about getting the surfaces to conform to each other without oxidized material in between. Wiping action (sliding) contacts yielded better connections due to removing the oxidized surface layer. Anyway that was our findings from a 12 month effort evaluating products on the market.

[kfxguy]

I have performed quite a bit of conductivity testing in the past. A lot of it on RF gaskets as well as switch contacts and the like. The results were surprising at first until really thinking about what happens when putting 2 pieces of metal together and expecting good conductivity. Silver while being most conductive scored poorly. It most often had higher resistance readings that other materials. This is due to the hardness of silver. Tin consistently had very low contact resistance and on par with gold (real gold not just color). The softer the material, the more the two surfaces can conform to each other. Contact pressure plays a large roll as well. It's all about getting the surfaces to conform to each other without oxidized material in between. Wiping action (sliding) contacts yielded better connections due to removing the oxidized surface layer. Anyway that was our findings from a 12 month effort evaluating products on the market.

So what kind would work best in my situation? I ordered carbon and a little tube of silver.

[kfxguy]

How about this instead of antiseize

[78MaicoRider]

Does it give a resistance spec?

[kfxguy]

Does it give a resistance spec?

Yes. Here you go.