I replaced my battery about a month ago because everytime I'd wake up in the morning and try and start my car it'd be dead (and the battery was about 3 years old). Now today I went to go start my car and first of all the battery was so dead the keyfob wouldn't even unlock the doors, when I finally got in my car I tried turning the overhead map lights on (which are LED btw) and even they wouldn't turn on. Jumped my car and it started up fine. Drove it around for a little bit and it's fine now and starts up fine. I'm pretty sure it isn't the alternator because it's obviously charging the battery or else it wouldn't be starting hours later after I drive it. It's only if my car has been sitting for a couple days that it won't start. Anyone have any idea what could be causing this? At first I thought maybe my sound system was drawing too much power and draining the battery but I haven't been listening to music lately (with my car on or off) and I turned my amplifier off too. So I'm lost... anyone have any ideas?