So this is a 220 Amp High Output Alternator, new, installed in a 2005 Ford F150. My old alternator gave me a solid 14.3-14.4 on idle but due to new system being installed I needed a new alternator. I'm getting 13.3-13.6 at idle and sometime as low as 13.0 while driving. This is WITH the system turned off. Now I contacted the company at which time they suggested a smaller belt because of the smaller pulley. My old belt was only about 9 months old and was a goodyear gator so I ordered another belt 1 inch smaller (what a bitch to put on).
Anyways, I haven't measured the amps, well I tried but had the wrong tool. I know amps and volts are different but I'm not feeling good about my choice.
Can anyone give me their opinion on this situation?