Apple mentioned that Mavericks would improve battery life, but we all know there is always a bit of a spin when companies are talking up their own products. However, it seems like these claims are pretty accurate.
According to John Siracusa, who reviewed OS X Mavericks in-depth, it can improve battery life by nearly an hour, and even up to more than three hours on a newer machine. The chart above shows his results.
It’s pretty amazing that Mavericks can squeeze that much extra life out of a battery in a 2007 MacBook Pro.
You can download Mavericks for free on the Mac App Store.