@AFB Correct, I had a similar issue a couple years ago with my 2004 SN. Turned out to be the positive lead to my battery had failed. Got a new clamp and it’s been fine ever since.
No snaps but it has loops sewn in and a cord that goes around the edge that can be tightened. My boat is kept on a lift so I use the loops to secure cover to the lift. Has held up very well.
My recommendation is the Masterline Pro Lock gloves and Radius (curved) handle. Many years ago a steroid shot also fixed it although that is a temporary fix.