Lani-
Good advice from both Bob and Gene. If you're doing a lot of boondocking and Chris relies on power to do his work, you may want to consider a good battery monitor.
A number of people on the forum use the TriMetric Battery Monitor. The link below is to a site run by a forum member. If your power is flowing properly from the truck and solar panels, it may be due to higher than expected power usage resulting in more need for charge. This unit will help diagnose problems like that. It will also help you understand loads and how fast you're depleting your battery.
John
TriMetric Battery Monitor