Low mileage 2006 LBZ. Truck starts after charging batteries overnight. However, if I fail to trickle charge overnight, the truck will not start in the morning as the batteries discharge. I've checked the voltage on both batteries and they are both below 12v in the mornings I fail to charge the batteries. This has happened in the past 10 days. I have not had a chance to take it to shop, thinking I could isolate the problem myself.


Any ideas?