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If you simply want to get better battery life in OS X El Capitan or Yosemite, follow these tips which are much less invasive. Due to the nature of modifying a kernel extension, you should always backup your Mac before using any such utility. Novice Mac users should not use this application. This utility is truly only intended for advanced users, if you are not comfortable with the idea of modifying kernel extensions and the ramifications of that, using uncertified third party software, nor the idea of intentionally slowing down a Mac by disabling hardware features, this is not for you. The utility will load and unload kernel extensions to force TurboBoost to be disabled or back to the enabled default state through user interaction with a menu bar item.
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To accomplish this task, we’ll use a third party Mac tool called “Turbo Boost Switcher for OS X” that is compatible with OS X El Capitan but not MacOS Sierra (yet), this app also requires a modern Mac CPU like a Core i5 or Core i7.
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