What is this on my Batterie and Firing button

[Supamojo]

I noticed it a while ago no firing issues or something but these strange "corrosion" on my button and Battery came up.

Tryed to clean it up with Alcohol (Ethanol) didnt work
With rubber also didnt work

My question how can i get rid of it?

 

[classwife]

Moved you from Ask the Veterans to batteries and Chargers
(I think this is a battery issue...)
Anyway, you need help now, not in several days.

 

[AzPlumber]

That's pitting from the current arcing across the connection, typically from a very high current load. Will take some fine sanding paper/cloth to remove it. You can help prevent it by keeping it clean and using an antioxidant on the connections, Deoxit Gold gets great reviews around here.

eta: It can also be caused by improper switch adjustment (firing pin not making solid contact with the battery)

 

[zoiDman]

I noticed it a while ago no firing issues or something but these strange "corrosion" on my button and Battery came up.

Tryed to clean it up with Alcohol (Ethanol) didnt work
With rubber also didnt work

My question how can i get rid of it?

Hi Supamojo. Welcome to the ECF.

Yeah... that looks like Pitting due to Arcing. Here's a Thread where people talk about it.

Battery arcing

BTW - Does the Mech this happened in have a Very Short Throw Switch by any chance?

 

[BackDoc]

i would ask you the battery specs and the mod, and specifically the Build you are running?

 

[DaveP]

De-Oxit is good stuff. Less is more, so be stingy with it. You only need a thin coating on the contact.