Ummm, what does weekly maintenance look like?
Honestly, I just wipe mine with a slightly damp paper towel. I twist one up and jam it into the battery and bottle holes, with a good twisting action. That's really it for me. Of course, the only two I have are aluminum. one 6061, and one 7075. They are still bright and shiny on the inside, and under the caps. Mainly because I don't let any juice sit on the surface, inside or out.... EVER!
I hardly ever put anything on the contacts. A little de-oxit gold, or no-ox-id, every once in a while...






