luis9011,
Thanks for following up.
Let's continue diving into this unexpected battery drain further. You already mentioned you disconnected any additional peripherals from your Mac, which slightly improved the battery drain while the Mac sleeps, and you reset the SMC. All great steps.
-When you place the Mac in sleep, are you closing the lid or keeping it open?
-Are you leaving any programs up and running before placing the Mac in sleep? Or, do you quit all open apps? Test this out to see if it makes a difference as well, if you haven't already.
You mentioned checking System Preferences regarding sleep/wake options. To confirm, when you navigate to System Preferences > Energy Saver, do you have any of the following check marked: 'Put hard disks to sleep when possible', 'Wake for network access', 'Enable Power Nap', 'Prevent computer from sleeping automatically when the display is off'? Does it make a difference in battery performance when you check or uncheck those options? Change Energy Saver preferences on a Mac desktop computer
There are also a few other related articles which can provide some additional steps and guidance to assist with your Mac's battery performance. Check them out here: Get help with your Mac notebook battery and About battery health management in Mac notebooks
Cheers!
