I kill my truck a lot by leaving the lights on since my chime doesn't work so I always carry a portable jumper (which has saved me so many times), anyways I have noticed after I do kill it and jump it, my truck doesn't seem to recharge so from that point on, I have to jump it at almost every start until I can get home to hook it up to a charger. It doesn't matter how far I drive either. I also bought a brand new battery. Yesterday I took off my alternator and took it to autozone and it passed the test. Does anyone have any advice on what else could be the issue? I do have an aftermarket head unit installed but I wouldn't think that would keep the alternator from recharging my battery. The generator dash light isn't on or anything but yes the bulb does work. Any help is appreciated.