Just got new battery
So about a month a go I got a new battery
and it was working fine up until now, it just
does overnight. I left no lights on. I don't
think it's the altenator, could it be something
else? I don't know if this is in relation( I know
nothing about cars), but ever since I got the
new Battery installed, when I start the car My
rpm goes up then goes back up and it never
did that before I got the new Battery.