Posted: Mon Jul 13, 2009 2:57 pm
I purchased a I290 as a starter kit and installed it covertly with a small 12volt battery I got out of an old UPS. Using 2 100v 6 amp diodes in parallel connected to a key on 12volt source in the vehicle and Velcro'd the phone to the back of an interior body panel. THAT WAS ALMOST 3 MONTHS AGO! I cannot believe how "set it and forget it" this system has been. Incredibly stable device and software. Could not ask for more.