ok so a while back when i just got this game i recall reading you can charge a car battery by using a bike and a alternator. till recently when i in a save while i am working on a base underground in a office building (using the crashed car thank you lab start getting me motion power generator and integrated tool kit and a crap ton of power storage) but the car in side had no charged batterys and i had non on had the only replacements had no power. so does the bike system work and do i have to actually move?