Car won't start after carputer install
Alright, well, here is the deal. I installed my carputer yesterday, and everything went well.
Today I got up and went to work, my car started fine. Went out to get some coffee at one point, and then went out at another point to get dinner. Car started fine.
When I got out of work (about 2 hours after the last time I went out), my car didn't start at all. None of my lights were on (though maybe my door was open a bit and the interior ones may have been on). I got a jump from my friend, and it started instantly, no problems at all.
I drove it home and everything was fine. I tested the battery and it came in around 13V.
I went out about 30 minutes ago, and plugged everything in to test something out. It all ran fine. The power supply on the carputer has a feature built in where if the battery voltage drops to a certain amount, it will power off, so it doesn't drain the battery. Everything went well, but when I went to start the car, it wouldn't start agian.
I disconnected the carputer from the battery, and it still would not start, even though the voltage still looked fine.
I jumped the car again, this time with my dad's truck, it started right up and kept running after I got the cables disconnected. I let it run for about 10 minutes, and then turned it off. I went to go start it up, and I had no power to anything at all, not even the radio or lights in the dash.
None of the fuses are blown either.
Is it time for a new battery? I have no idea how old this one is. Isn't there something more to a battery other than just the voltage that determines the starting ability?
Could it be the alternator, not charging the battery? That would explain not having any power at all even after it was started and running.
I don't think the carputer drew too much power, it draws less than 60W at less than 10A (I didn't blow the fuse, and the power supply only has a max of 60W). Thats less than a sub or two.
I'm going to stop by someplace tomorrow like AutoZone and see if they can test the battery for me and see if there is a dead cell (?) and possibly get a new one.
If the battery looks fine, looks like it is going to a local guy or the dealership, whoever can fit me in first, since I am supposed to leave for vacation on Monday.
So can anyone help me out?