Hi All - I am about to secure my Mossberg 500 in my closet with a Santa Cruz SC-5 gunlock, but I intend to be able to activate it electrically via a hidden switch. Can anyone assist me with powering this? Basically, I would want the power coming from a continuously charged 12V battery - sort of like a 12V UPS. I need some help from someone a lot smarter than me in the electrical department.