I leave Monday Morning at 9 AM, and typically return home either Thursday morning or Friday morning for the weekend.
About a month ago, my 19 month old batteries were too weak to start my truck, so I jump started to get going. I was fine the rest of the week, and since then.
Last Monday morning, same thing; batteries were too weak to start truck. I jump started, got going, and was fine the rest of the week.
I got home Friday morning, and Saturday morning I felt the batteries. I found that three of the batteries were cold, and one was WARM! Aha! I found the culprit. So I put batteries on the charger @ 10 amps Saturday, and hopefully I will get started tomorrow morning. When I get get home next weekend, I will replace the bad battery, and hopefully everything will be copacetic after that.