Your Mac is a hefty investment, so it’s in your best interest to keep it running well for as long as you can. Upgrading its components instead of going for a new machine is a smart idea. (Bonus: Better components will also increase the resale value.)
Still, like we said, your Mac is a hefty investment. So before you crack it open to drop in a larger and faster hard drive, add more system memory, or even slap on a fresh new battery, you’ll have questions. You’ll want to be confident in choosing components, finding the right tools, and knowing what to do before you find yourself digging into your Mac’s circuitry.