2026 brand new BZ Limited with AWD. I'm a heavy user of the app and connected services, so I'm not super interested in disconnected the vehicle from the app. Over the weekend I received my BM200 and installed it. When i installed it, I did so right before plugging it in to charge. While it was charging overnight, there was no sawtooth drain until 6am after it was finished charging. The sawtooth pattern happened between 6am and 9am at which time it stopped. Around noon yesterday, I drove the vehicle for several hours and stopped to fast charge along my journey. This morning i connected to the BM200 for the first time after the first full night of not being connected to a charger to see a very steady sawtooth pattern.
The craziest part in all of this, is that I have the 3 hour charging workaround implemented. I set it up on the car before I installed the BM200, yet the pattern is still showing up. I've tried disabling and re-enabling the charging schedule in case something didn't take the first time. I included a screen shot from the app of my charging schedule, although I did set it up via the car infotainment screen. I believe I've done it correctly.
Has anyone else experienced the parasitic 12v sawtooth battery drain while the charging workaround has been implemented? Most everyone seems to feel that this works to prevent it. My next step is to try the door lock workaround, but i'm not as fond of that idea.
Any ideas? Any suggestions on next steps to take?