Battery drain after SSD upgrade

Hi, spidermengmeng.

I'm glad you decided to reach out on Apple Support Communities. If I understand correctly, you upgraded the SSD in your MacBook Pro a few days ago, and you’re looking for assurance that the lower than usual batter life is normal. If we’re on the same page, I’ve got you covered.

Apple has a great reference article for MacBook battery concerns.  Check it out: About Mac notebook batteries

If you scroll down to the “My battery runtime is low” section, you’ll see that your battery life is completely normal right now. The technical specifications for your MacBook note that your machine should receive 10-12 hours of power during normal usage. Since your MacBook is re-indexing, it sounds like the 45% it loses in 10 hours is about what you should expect.

MacBook Pro (Retina, 13-inch, Early 2015) - Technical Specifications

Availing yourself of the tips provided in the section I referenced above to optimize your battery life is always a great practice, too. I suggest working through that process and using Activity Monitor to monitor your energy usage if you feel like it hasn’t returned to normal in a timely fashion.

Activity Monitor User Guide for Mac

Best Regards.

spidermengmeng,

Indexing is basically organizing your file-system on your Mac so that it can more quickly find the files that it needs when you ask it to perform a task. Re-indexing is rebuilding the system. This generally happens after a software update or upgrade, when you reinstall the macOS or set it up for the first time and transfer your files from a backup or other source, or when you manually rebuild the index as outlined here:

How to rebuild the Spotlight index on your Mac

Hopefully this helps!

Cheers.

First, and this is not a guarantee it is causing issues ... Samsung Evo has been known to cause issues with Mac. I have not seen a full and complete explanation of "why" except a list of "possibly ______", including possibly an issue with Samsung SSD firmware. But do not worry too much about it unless that occurs..

Now to power issues ... try an SMC reset as sometimes the SMC controller gets a bit confused about managing power: How to reset the SMC of your Mac - Apple Support

Generally and historically, the Spotlight app 'indexes' the storage drive; that could take extra time.

Perhaps the drive cable has issue; maybe there's damage, that cause data-fault and/or power loss?