oh, and i was in a mobile electronics course for over 4 months before i was put in a shop with a coach mechanic. Never was I taught to increase power storage before upgrading the alternator in a regular everyday system. For the guys who were doing car stereo competitions, then yes the more batteries the better. Sure they are running at 12 volts but there was a hell of a lot of current available to them for a short period of time for super loud explosive bass. For someone who wants to listen to their stereo in the real world, with the engine running, it comes back to my argument about the difference in voltages between the alternator and the battery...keep the current coming from the alternator and don't fall back on the battery, because if you fall back on the battery you will be down to 12 volts from 13.8 volts, and when you drop voltage you lights will dim.
