is lower? why? the stock one was 105amp, the new one 200amp. i had flickering light problems and my aftermarket stereo system causes my lights to dim considerably when the bass hit while idling. now i don't have either of those two problems, but my voltage seems to be a lot lower when i idle. before it was idling around 13v, now idles anywhere from 11-12. is there something wrong here?

the people who made my alternator said lower volts means more amps are being used. that's what happens when you are powering all the accessories like AC, lights, and a big stereo. is that true? just seems weird to me and i need a better explanation!