Straight honey will perk up a fatigued dog more quickly that anything else I've tried assuming of course that the fatigue isn't induced by dehydration. A small squeeze bottle is enough for 4-5 "perk-ups" and if you forget the honey in your hunting stuff, it doesn't stink to high heaven when you find it next season. In fact, a short dip in boiling water and it's good as new.
Glad you found your remote and rebounded day 2.