Originally Posted by
FrenchyAlex
It looks worse on the picture than in real life because of the flash. When I saw my pic, I considered Photoshoping it before posting, that's how ashamed of myself I was...
There was a lot of that white/yellow foam on the terminal, but not around. Then I had to remove the terminal to reset the whole unlock/no start issue, that's when all the residue spilled. I guess it then absorbed the humidity and that's how it looks now.
I guess cleaning the terminal and cable won't be enough and everyone here will tell me to buy a new battery (this one is from mid 2016 according to the label, and supposedly has a 6 years life).
I"m not going to say the battery is bad and buy a new one, but it would be far from the first one to be bad under warranty. many things can cause a premature battery failure. i could list a few like running them down and having to charge them multiple times while trying to figure out why your car won't start.