When I got my Celestron 9.25 AS-GT I also bought a Power Tank from Celestron 7AH model. Little did I know that I would also be getting a Dew Buster and Heat strips for my optical tube corrector and eyepiece. I got two Dew-Nots. Here in Pennsylvania dew is a problem in Spring and Summer. Now I need to get another power supply to power the heaters. What would all recommend. I seen a 12AH power supply at Sears made by Schumacher. They also have a 17AH model for more money. I already have the Celestron Power Tank to power my scope. But what would I need power wise to power the heaters. The ones at Sears only have one recepticle for a cigarette lighter adapter. So I would be able to use my Dew Buster and nothing more. Not that I need anything else. 
