markyoussef

Hello all,
I’ve been having a pretty bad battery drain with my C55 and was wondering if anyone else has had this issue. Let me preface by saying my battery is 3 weeks old and my prior one was 4 months old. If I let the car sit for ~20 hours it will have enough power for all the electronics but not enough to start up the car (without a jumper). After ~36hours the car has very little power(enough power to lock the doors but not enough to unlock them). At around ~48 hours of sitting the car will be completely dead. I had to leave my other car running for over 5 minutes (closer to ten probably) when trying to jumpstart it in order for it to get enough power to start up. I’ve already tried replacing my battery and unplugging the power seat modules; both didn’t fix my issue. The alternator is also working as should be. What else could it be? I've currently pulled all fuses related to SRS (had the light pop up prior to jumping my car twice) and am waiting to see if that'll fix it.