In first video, i will repair a 12v 180 Amp BMW Valeo Car Alternator and then show you how to reuse it as a power generator using a laptop charger. In second video you will learn how to use a stepper motor as a 110v 500w alternator without any modification. In third you will learn how to generate 24v from a 12v car alternator without much modification. The car Alternator rating that i have used is 12v 64 Amps which will be forced to produced 24v.