does factory alarm drain battery while being stored for winter?

 

I stored my G37 for over a month with no problems; to be safe get a car battery charger anything longer than 2months of stoage imo

 

There are plenty of brands out there, but I use Battery Minder. It's perfect for cars that only get taken out on weekends - weather permitting, of course.

 

Two years ago, I stored for 3 months approx with the battery unplugged - plugged back in and fired up perfectly. Just had the windows resetting issue.

Stored for 3 months last year with everything connected and the battery did not have enough to turn the crank - had to be recharged. Once recharged, fired up back to life without a problem.