I just got inside from getting 2 video clips of my subs pounding. I only set the volume at 15. It was going for about 15 minutes like that and after I was done, I put the battery charger on my battery to see how much power was left in the battery and it was still full. This is my 1st time putting the charger on it in about 1.5 weeks and between that time and now, I was pounding my music everyday. One day I even I unhooked my speakers and just let my subs go and I put the volume at max and I had it there for about an hour. So do you think I can get away with my stock battery and alt? My battery is 450 amp and my alt is 83 amp.