So, this has been happening more and more frequently. I get in my truck and it either wont start at all or sometimes it starts a little but then dies or stays around 200 rpm and 12v. I have an aftermarket battery bolt so I can attach my power cable to it, and sometimes it comes loose (I have no idea why it comes loose) but that will cause everything to turn off when I try and start it, obviously because there is no power connection. I'm at the point to where when I am having this voltage/rpm problem I have to have my foot on the brake and gas a little bit so I keep my rpms up and from the engine dying at stop lights. Is it possible I need a new alternator, and that's why my volts have a hard time staying up? The battery is only like a year old, so it's not that, unless it's the connection causing all this. I know this probably sounds kinda vague but I'm hoping someone would be able to help me out.