I have ran the Optima battery in my Cobra for over 7 years with no problems. When I park it I hook a battery tender to it. All that does is keep it at peak charge and once in a while will kick on for about 20 seconds if it drops a little. But it won't charge the battery as it is just what the title says, a Battery Tender. Just monitors it for any drop and charges it back to that level.
Ron
