2013 Chevy Tahoe Z71 PPV Outfitted, Battery drains overnight.

[kylebnoris]

Is the battery more than 3 years old as well? Could it be a dying battery?
The current draw numbers you show seem to be in the acceptable range?...

Battery was replaced in January, 12.3 was my reading but this is not after a charge. It was when I showed up on site. Guy said the battery charged and tested fine at the local parts store prior.

 

[kylebnoris]

Instead of pulling fuses, have you tried measuring the voltage drop across the fuse test points (at least the ones you can)? That might help pinpoint what circuit is still awake. Plenty of YouTube videos on this method.

Depending on what aftermarket equipment is installed, the fully-asleep draw should be no higher than 50 mA, but 20-30 mA is more like the norm on a stock system. If it has an aftermarket alarm system, etc., YMMV.

Yeah so it was pulling 110mA immediately when connecting leads but slowly drops to about 60 then eventually through out pulling fuses (to hopefully see an immediate difference in draw and pinpoint AT LEAST the affected system/circuit)

It eventually settles in between 49-48mA

KOEO of course.