cctv battery backup

Hey everyone i'm new to this forum and wanted a bit of advice, I've currently got a small CCTV system in my house ut i am getting a lot of surges and spikes etc, I cam across a company called who advised getting a ups that would solve this problem and back it up if the power goes off. they look...

Hi all, I'm currently in the process of building a ups to back up a cctv system. I have been using this as a guide http://www.instructables.com/id/Super-Simple-Super-Cheap-DIY-UPSCCTV-system-fro/ I've got as far as the relay and I'm now stuck as this guide does not explain it very well (not at...