I have a DS 114at that has been in the basement for years now. I recently took it out to start using it again. The battery pack for the mount is destroyed. Broken in many places. One of the things I really didnt like about this mount was going through so many batteries. I know there are universal AC plugs you can buy but I dont want to get the wrong one and fry the mount. Anyone here have one or can suggest one to buy?