I mentioned before how the cheap cigarette lighter power adapter caused static on my FM reception so I searched around and found a quality replacement. The Vority http://www.amazon.com/Dual-USB-Char...ie=UTF8&qid=1391651281&sr=8-1&keywords=vority adapter sold on Amazon for $16 did the trick! The FM sound is as good as before and the battery even charges faster. The original adapter stated that it charged at 2.1 amps but I measure it to be only about 1.5 but the Vority is the full 2.1 amps. I find that the battery drains at a rate of about 3% for 24 hours of sitting still.