How long can a car battery power a 15 watt stereo via a cigarette lighter?

November 29, 2009 | Car  

I have a 15 watt stereo, and planned on plugging it into my car’s 12v DC cigarette outlet. I was wondering if this is a good idea, or if it will drain my battery. Also, how long would it be able to last without affecting the battery? Posted by Kurt  Read More Ø