Do you have any idea where that may be? I have 2 keypads - I am assuming this main control box is something else? I am at work now but will run home and see if I can find it. What kind of battery am I looking for? Something that looks standard?
The main panel will be located in a closet or cabinet somewhere in the house. It will be about 14" x 12" metal can. The battery is housed in that panel. It will look like a small black or gray brick. These batteries can be purchased on Ebay or at Radio Shack. 12 volt either 7ah or 4ah rechargeable alarm panel battery. It will have a red lead and a black lead attached.