Incredible battery drain in new Ventura 13

So wanted to let y'all know how I resolved it:

1. Bluetooth disabled upon sleep.
2. Found this by using a utility called 'Sleep Aid'. It allowed me to detect what was waking the machine in a visual form and then also reset the sleep settings to whatever I wanted, again, in a visual form. You can google 'sleep aid mac' and find it. The trial was adequate but I paid the developer for it just because it solved the problem.

Have had 0 issue since. 100% battery upon closing the laptop last night, 100% upon reopening it this morning.

Ventura 13.3. MacBook Pro M2 13".

Apple needs to ship a utility like this with the operating system.

I had the same issue, draining battery in sleep mode, and I found that Google Updater background item was draining my battery. In case you also use Google Chrome then you have this item too. To disable it just search in spotlight for Login Items and from the settings page toggle off Google Updater. Please note that this will prevent Google Chrome to update automatically.

sudo pmset -a hibernatemode 25

hibernatemode = 25 is only settable via pmset. The system will store a copy of memory to persistent storage (the disk), and will remove power to memory. The system will restore from disk image. If you want "hibernation" - slower sleeps, slower wakes, and better battery life, you should use this setting.

$ pmset -g | grep hibernatemode

check which mode is active

I read through the 'Power Management logs' under system report and saw constant wake calls from Bluetooth. Having turned Bluetooth off, the power drain is back to normal pre-Ventura for me.

I could fix it by disabling all apps in Settings → General → Login Items → Allow in Background.

I guess macOS now has an app API to wake up Apple silicon macs like iOS background refresh.

To remove apps altogether from this list, I ran Etrecheck to identify where they are located.

Had to ultimately go back to Monterey and the battery life improved drastically. Suggest not to bother with Ventura.

For me, gone. I installed a utility called Bluesnooze that shuts it off when the laptop sleeps. Problem gone. I also verified it in pmset logs.

I can confirm that I was experiencing this on my MBP M2 MacOS 13.2 due to the Bluetooth drain. However, after upgrading to MacOS 13.3, the battery drain has stopped even with BT, Wifi etc left on.

I update to Ventura 13.3 last Monday and the issue is solved for me, haven't dropped even 1% for the past two days being on sleep mode. It could also be "Bluesnooze" I will test without it to see if it changed. I'm on a MBP M2 13.

I think I may have solved the issue. Turn off stage manager. So far, I haven't lost 3% in one minute!

Found the issue guys. The bluetooth is draining all the battery. @apple needs to fix this.

Temp solution: turn your bluetooth off when you are not using the macbook.

Turning off Bluetooth fixed it for me for the most part. I lost only 6% over a 12 hour sleep period. MacOS 13.2.1

Installing Bluesnooze seems to fix the issue for me. M2 MBP 13”

Upgrading to Ventura 13.3 have fixed it for me.

M1 Max 16

It is the bluetooth that is causing this trouble. This is what it looks like with bluetooth switched off.

At least it is not the battery itself, let's hope Apple solves this with a software update.