Charging system I have a 2003 Mazda6 2.3L Automatic with approx. 168k miles on it. Last Friday, I was on my way home from work, I was at a stop light and when the light turned green and I put my foot on the gas to go, the car "jumped" a bit and my battery light came on. I continued to drive for about a mile or two, with no "power." By power, I mean that it drove... it just had no "get up and go." I got to a lot safely and parked it. Other than lack of power and the battery light, I had no problems driving it. No funny noises, no driving rough and no stalling. I had it towed to my parent's house and my stepdad replaced the alternator and charged the battery while doing so. Still no "power" after everything was replaced and he test drove it. He let it sit overnight and it drained the battery that was fully charged, as well as blew out my dim lights and rear parking lights. I bought a brand new battery and he replaced that. Still no "power" when he test drove it again. My stepdad's neighbor said that he could tell by the smell that the catalytic convertor was clogged. He let it sit overnight, intending to clean out the cat today... it drained the brand new battery!!! :o( ANY SUGGESTIONS??? Within the last two years, I've replaced the power steering pump, belt tensioner, plugs and wires, MAF sensor, temperature sensor, upstream O2 sensor, Camshaft position sensor, had my timing adjusted and some other **** I can't remember right now. I'll never by another Mazda...