Given how many batteries I’ve had to deal with over the years, and how much I’ve bitched about contact corrosion, I never did a little study and let chemistry work for me. No, I was always the guy disconnecting cables and using abrasives. Which, in fairness to younger me, is how we did it in the auto shops.
Ian’s batteries have never given me a lot of problem but the main positive connection, which is the one on the upper right in the photo, has in the past few months positively bloomed with corrosion. Figures, since it was the hardest to get to in the box.
So this afternoon I suited and gloved up, grabbed an old toothbrush, mixed a bowl of baking soda and water, and went to war. I should have taken a ‘before’ picture: It was a short war. That method works great.
Which is good, because there’s about 20 connections on Landlady’s 24 smaller batteries that are turning green again and will shortly get the same treatment.