

Just let these run and complete themselves.

In fact, the same normal processes that can make a Mac feel slow after updating to MacOS Sierra are often the same tasks that are leading to reduced battery life, including the re-indexing of the drive with Spotlight, Photos indexing and scanning, cleanup duties, iCloud Drive syncing, iCloud Photo Library (if applicable), iCloud Desktop & Documents, and other behind-the-scenes processes. I know this can sound like obnoxious advice to some users, but any recently updated Mac runs various tasks in the background which can temporarily lead to battery drain and reduced performance. If you have noticed your battery life is terrible but you just completed the update to MacOS Sierra, whatever the version be it 10.12, 10.12.1, 10.12.2, you should just wait a while.

Wait! Did you just update to Sierra and now your battery life is worse? We’ll review a few reasons why MacBook battery may be draining faster than usual with Sierra, and also cover some tips on how to improve battery life on any MacBook Pro, MacBook Air, or MacBook running MacOS Sierra.
