recently replaced my stock alternator, over charging kasi. repair of the ic regulator cost almost the same as surplus, so i opted to buy a surplus na lang.

the stock i believe was 70 amp, since wala ako mabili na same ampere rating i was forced to buy an 80 amp alternator. napansin ko mas malaki ang pulley nya. why is that? any tips to keep in mind since malaki pulley nya? does that mean, mas matagal magcharge dahil mas babagal ang ikot nya?

any effect if my battery is only 1sm, instead of the bigger 2sm?

TIA