Seattle206 10+ year member
Senior VIP Member
I see cars on here with 250amp alts running 8kW's+ with a bank of 10 batteries or somethin similar. i have a 250amp alt with 1 deep cycle in the back. is the only difference in running that much power the amount of batteries? reason i ask is because i frequently see when people want to add a second battery to a stock elec a lot of times people say no because it will burn up the alt. how then can 1 250amp alt power so many batteries when 1 130amp alt would struggle to charge 2 batteries?