Brand New 2021 DC OR 4x4 w/dead battery issue

My 2 month old DC OR 4x4, w/ 1000 miles on it has a dead battery. I put it on a trickle charger for 14 hours about a week ago, and I thought the problem was solved, but it just drained again. The truck has been sitting for a few weeks in a heated garage, and not driven, b/c I really havn't gone any where, and for short trip I drive the Explorer. The only changes I have made that have anything to do with electrical is LED fogs, LED interior lighting, and a few lights in my upgraded grill, which I did an add a fuse to the fuel pump for constant on. I dont see anything on, when the truck is off. Just FYI, I lack more than VERY basic mechanical skills. Any ideas would be appreciated. Also, will those lights be a problem w/ my warranty, should I end up at the dealership, which is nearly an hour away?

 

Batteries have terrible quality control. It could just be a bad battery. Fully charge it, then disconnect one cable from truck. If there is a fault you will know the next time you try to start the truck. Or you can take it in and have it load tested.

 

Did your add a fuse to fuel pump bypass relay leaving pump on constantly?

 

It could be a few things. 1- a faulty battery, 2- alternator not charging properly, 3- a parasitic draw on the battery, all modern vehicles will draw some power from the battery for computers. Accessories can create unwanted draws. Not driving for a couple weeks could draw the battery down. If you can get the starting/charging system tested at a local shop or parts store thatd help narrow down your problem

 

Why would you put it to the fuel pump fuse? That's crazy to me.

 

Disconnect doodads first
Look first, where the human was last

 

I will try all of the above. Thank you. And the fuel pump fuse, ahh, I saw in a YouTube video if you just wanted them on all the, in addition to DRL, that was the way to do it. Yep. Like I said, not really the greatest auto mechanic of all time. But not afraid to try.