How to Fix Battery drain/sleep drain while on Sequoia -MBP 13" 2017 A1708 During macOS Boot or Installation
Boot failures need a predictable pass through firmware, USB, storage, EFI and verbose logs before reinstalling macOS. Most installer stalls come from firmware settings, an invalid config.plist, wrong SSDTs, bad USB mapping or unsupported storage/controller settings.
Quick Checks
- Backup current state: Save a copy of your working EFI and run a full system backup before changing settings.
- Identify hardware components: Note down your exact CPU, GPU, Wi-Fi card, and motherboard/laptop model.
- Ensure utility alignment: Keep OpenCore, OCLP, and ProperTree updated.
Fix Steps
- Create a rollback point: Make a Time Machine backup and keep a copy of your last working EFI folder before editing OpenCore, kexts or root patches.
- Boot verbose: Add
-v keepsyms=1 debug=0x100so the final visible line gives a real clue. - Check firmware settings: Disable Secure Boot and Fast Boot, set SATA to AHCI, disable CFG Lock if possible, and use UEFI mode.
- Validate OpenCore: Update OpenCore, Lilu and core kexts, then run ocvalidate or ProperTree clean snapshot.
- Recreate the installer: Use a fresh USB installer and try another USB port; older Macs may need a USB 2.0 hub for input during setup.
- Reset NVRAM: Reset NVRAM from the OpenCore picker before retrying the installer.
Verify It Worked
- Verbose boot moves past the previous stopping line.
- The installer reaches Disk Utility and sees the target disk.
- Keyboard, mouse and USB remain active during recovery.
- OpenCore picker still loads after a cold boot.
Rollback
- Restore the last booting EFI folder.
- Use the officially supported macOS installer to recover the machine.
- Do not erase the internal disk until the installer can boot twice consistently.
Related iATKOS Searches
- OpenCore · OCLP · EFI · kexts · config.plist · macOS troubleshooting
Original Question: "Battery drain/sleep drain while on Sequoia -MBP 13" 2017 A1708"
Hi,
So, I am a total novice to OCLP and I have an issue I would love to consult with more experienced people.
I am currently using a MacBook Pro 2017 13", i5 8GB RAM.
The original Apple SSD has died a few days ago so I decided to try a cheaper way of getting a few more years from the Mac and try to use the latest macOS version while I'm at it.
I am currently running an adaptor with a Hynix HFM256GDGTNG 2230 256GB SSD.
Along with that, I have installed the latest OCLP and macOS Sequoia 15.1.1
Since reinstalling the machine (a few hours ago), I have made sure to sync all of my iCloud-based data and install all the apps as well as restart a few times.
I also have applied the hibernation workaround in OCLP and written it to my EFI as the device would not sleep at all (fans spinning, getting warm).
Now to the problem: I have noticed an increase of temps overall (the upper housing gets hot, the fans ramp up a lot) as well as a heightened battery drain while idle as well as when the device is asleep.
I would like to ask, whether some of you have any recommendations on how to make the power drain as manageable as possible (as of now, It ate through about 25 percent of battery while browsing some static articles in Safari).
PS: Yes, I am aware, that this could be as much of a OCLP issue as an SSD compatibility/integration issue, It's that I can't seem to find any relevant non-deprecated info regarding this issue.
Thanks in advance, would appreciate any input! :)
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