Dead Battery?

[vancelot69]

Anyone have any ideas about this?

I got a new battery from O'Reilly's last May. Since then, my Jimmy has sat more than it's been driven (220 days had, 50 days driven before Dec 8), but up until this last weekend, it had started fine every time.

The last time I drove it more than just a couple of miles was Dec 8, 2014. Since then, I have only driven it a handful of times, for about 13 miles. Those dates are: 4 days later on Dec 12, then 9 days later on Dec 21, then 34 days later on Jan 24, 2015. Then, this past weekend, on Mar 2, 37 days since the last time, the battery was completely dead, it wouldn't even budge the voltmeter. I jump started it with my wife's MDX, then let it run for several minutes and drove it about 3 miles to try to keep it "up". Then I went to drive it again today because it snowed last night and I wanted to get out and play, and the battery was completely dead again. It wouldn't even budge the voltmeter again. So I jump started it again with my little Jimmy, ran it for several minutes, then drove around the block a bit and to AutoZone and had the guy check the battery and he said it had 12.03 volts, but was only at about 23% charge.

So, could my problem just be that it's been sitting for so long without being run for any real length of time? Or do I have a bad battery? Or do I have a drain somewhere, and if I do, how would I track that down? I've always thought it sucked trying to track down electrical issues

Thanks in advance for any help y'all can give.