I was preparing my motorbike for storage. When I was pulling the battery I noticed the terminal covered with what looks like corrosion or grease. Can anyone chime in?
This is brand new battery with less than 4 months.
It's hard to tell from the pictures, but it could be Vaseline. A coating of petroleum jelly helps reduce corrosion and prevent dirt from getting into the contacts. I'd suggest leaving the Vaseline on while it's stored, then clean it off before reinstalling the battery.