DBSwiss
Member
There is supposed to be a clip on the inside of the battery cover (bottom plate) that can be used to reattach the plate without the battery inside. The bolt screws into the clip then. Mine was missing However.Cable rattle won't shouldn't be an issue. There is a plastic cable guide plate that is mechanically fastened to the upper/inside of the top tube, and a second guide piece that connects to the motor. I have to say, it's by for the best internal cable routing solution I've seen. I swapped out my dropper post cable and it was easier than most non-eBikes. Trek did great here!
Far as the holes for battery holes, I'd probably just put electrical tape over the upper hole, and then the lower one you'll want to have in place to secure the lower cover. Someone here suggested having a spare lower battery bracket to secure that bolt/plate.