From what I've heard a few of the cars coming out now seem to have very little headroom when it comes to extra juice. I know a friend's Cougar when you turn on the lights or even just hit the brake lights and the headlights and dash lights dim. Starting a car is different than just sitting idleing which is when the batt. icon comes on for me, sometimes it shuts off completely sitting at a light. When you start a car a starter takes a lot of power out of the battery and there's very little extra margin for extras, sometimes dipping under 9 volts or more for some models. A lot of stop-go driving is very hard on the batteries,they never quite charge up, add some high output amps, cell phone charger, maybe a radar detector, laptop computer and your alt. is humping to get out enough. I would think car manufacturers, given todays power usages in cars by people would beef up the alternators rather than less than they used to be.

#695-Mk2/8 colors-12Gig w/Tuner- awaits v2.x & Voice Recog.