I recently bought a MacBook Pro, and I installed Windows 8.1 with bootcamp on it. However, the battery life is absolutely horrible. I get about 2 hours of battery life doing light tasks that would get me 8-9 hours of battery life on OS X. Task manager shows minimal CPU usage, like <5% most of the time. The laptop also runs extremely hot. Comparing the MacBook Pro’s 9400M battery life with the previous MacBook Pro [ "Core 2 Duo" 2.4 15" (Early 2008/Penryn ], and the older MacBook Pro comes out ahead by 15 percent -- the older MacBook Pro's battery lasted close to 3 hours. In an in-depth review, the comprehensive ArsTechnica put the "Unibody" MacBook Pro through its paces and This is how Apple tests to get their battery life figures (it's a footnote on the product page): Wireless web testing conducted by Apple in October 2011 using preproduction 2.8GHz dual-core Intel Core i7–based 13-inch MacBook Pro units, preproduction 2.4GHz quad-core Intel Core i7–based 15-inch MacBook Pro units, and preproduction 2.4GHz quad-core Intel Core i7–based 17-inch MacBook Pro TechRadar Verdict The 2014 13-inch MacBook Pro was arguably Apple's best laptop, and the 2015 model is better still. If your next MacBook needs to be reliable, powerful and practical, the I'll give you the TL;DR version of what you could've found by searching: 9 hours is achievable if your usage ressembles Apple's testing method, which is explained in the fine print on Apple.com. MBP Early 2015 (A1502) has died! Went to use my MacBook two days after switching on with no issue. When I went to boot it was completely dead. When I went to charge it, there was no light. I left it on the charger for 20 mins and returned to a solid green light. I did an SMC reset which set it back to amber. The 2015 MacBook Pro with Retina's biggest addition is its Force Touch trackpad, which is also featured on both the new 12-inch MacBook and the latest 13-inch Retina Pro. Battery Life. The new I tried, but Monterey and a third party NVME on an Early 2015 MacBook Pro causes battery drain in sleep mode. Also tried with installing first on original SSD to update the firmware and than installing on the Crucial P1 - nothing. Over night it looses more than 20% in eight hours. With the original one 0-1% only. bmJ8.

macbook pro early 2015 battery life