Well I took the battery into the service center and bought a new one. Got home, and I can't get the frunk open. I had to close it due to heavy rain today. I've tried my charger on the 10 and 50amp settings, as well as jumper cables from the new battery. No reaction, nothing. So this is turning out to be a huge hassle, and PITA. Definitely replace the battery before you get into this situation.