26650 black copper stringray painted threads fix?

[jp248782]

Hey guys! Bought a 26650 copper stringray and the threads are painted -.-.... It's causing a nasty voltage drop anyway to fix this without ....ing up the threads? wire brush or will that make them course? suggestions?

 

[danny4x4]

Don't know whether this will work, but if you have a sonic cleaner lying around, you can try dropping it in. Perhaps it will help? If it doesn't, try scrapping a bit of the paint off and try again.

 

[p7willm]

Noalox has fine zinc particles in it that are meant to cut through the aluminum olide coating on aluminum for better conductivity. The paint might be too thick but it might be worth a try. It also makes the threads feel better.

 

[Ed_C]

It's funny, but the pictures of the original JD Techs look to have panted threads as well. Do they have issues with voltage drops as well?

 

[MrPlink]

Dremel with a brush attachment