I poked around some more with no luck. I was worried that my good flashlight would roll away on the aero shield so I was just using the flashlight on my iPhone (it’s right next to the lens so it should be able to light up the target?) Took a few videos while poking around but don’t see anything resembling a battery label. I guess I can try to tape something to my flashlight so it’s more square and can’t roll...will try again later after recharging it.
I also disassembled my frunk today! But I don’t see anything under there that resembles a battery label either.
It could be that all the heat pump hardware in the 2021 just makes it impossible from that angle. Frunk disassembly is super easy at least...just need to remove 7 bolts and a couple plastic pieces that clip into place. The only hard part for me was getting the cable out of the frunk light since it was in there pretty tight and I was worried I’d break it (but I got it out fine.) I reached in deep with my iPhone recording video again as well, with no luck.
Also, I noticed the coolant level under there is well below the nominal line. Should I be concerned about that...? Seems weird on a car that’s just 2 weeks old. No warnings or anything.