Something is draning the battery when the truck sets around for a week. Could the relays for the delay when I start the motor?

Read these two articles on how to find the culprit

How to test for battery drain (http://www.ricksfreeautorepairadvice.com/diagnostics/checking-out-battery-drain)

Special considerations for Ford vehicles when testing for battery drain. (http://www.ricksfreeautorepairadvice.com/diagnostics/battery/battery-drain-testing-on-ford-vehicles)

This link may help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post241804