My Kirkland battery is a 2006,, 12873, on 8-27-14 I replaced the door handles on my 1999 dodge avenger , I had the doors open while listening to the radio., when I finished the job I just shut the doors an called it a day. in the morning I had to jump it with a jumper battery., it seemed weak all day. I just finished giving it a quick charge, 40 amps for 30 min., seems fine again, nice strong crank !