With wi-fi enabled it's still consuming around 20~25% battery in 12h and around 30% in 24h in sleep mode. The same amount is drained without sleep mode. Conclusion: Big Sur 11.1 fixes battery performance in A1502 model, 2015 rMBP 13" but only without wi-fi enabled. MacBook Pro (Retina, 15 inci, Pertengahan 2015) - Spesifikasi Teknis (ID) Jika Anda lupa kata sandi ID Apple. Jika Anda lupa kode sandi untuk iPhone, iPad, atau iPod touch, atau perangkat Anda dinonaktifkan. Melihat, mengubah, atau membatalkan langganan. Memperbarui iPhone, iPad, atau iPod touch. Amazon.com: Key Power A1398 Battery, 15-inch MacBook Pro Retina Battery Replacement for A1398 (Late 2013, Mid 2014, Early/Mid 2015), Compatible Laptop Battery Models A1494 A1618 8700mAh. 2015 Retina 15" MacBook Pro battery. $99.00 $75.00. Free Shipping. Late 2013 - 2014 Retina 15" MacBook Pro battery (14) $89.00 $65.00. Free Shipping. MacBook Pro early 2015 - battery hi, I'm not very technical but been on macs for decades. The battery is starting to bulge on my MacBook Pro Retina, Early 2015 model, and i can't afford a new machine at the moment. I learned that the battery is glued to the bottom case of the MacBook Pro and when replacing battery, technically your entire bottom case is replaced. You end up getting a new keyboard, trackpad and the unibody case. Your MacBook may be covered under Apple Care if you bought it. Yes, you can run it without the battery. EMAKS A1618 Laptop Battery for Apple MacBook Pro 15" Retina A1398 Mid 2015 Ver MJLQ2LL/A MJLT2LL/A MJLU2LL/A EMC 2909 2910,P/N:020-00079 02000079 1ICP9/47/95-ICP8/56/66-2 [11.36V 99.5Wh] iFixit A1398 A1618 Battery for MacBook Pro 15" Retina (Mid 2015) - Repair Kit The 15" Retina Mac, regardless of configuration, comes with a Core-i7 quad core CPU, 16 gigs of RAM (soldered on, not upgradable) and a wildly fast PCIe SSD drive. The base model has 256 gigs of storage, while the $2,500 dedicated graphics model has 512 gigs. For a painful $500 you can double that to 1TB. Closed 5 years ago. My MacBook Pro (15-inch, Retina, Mid 2014, macOS 10.13.1) shuts down randomly. It shuts down suddenly when on battery. It shuts down a little more rare when connected to AC. It works almost fine when in safe mode. It works perfectly while I install macOS. It works fine when I have an external screen connected and a YouTube The starting $1,999 version of the 15-inch MacBook Pro with Retina Display packs a 2-GHz quad-core Intel Core i7 CPU, 8GB of RAM and 256GB of PCIe storage. You'll also get Iris Pro graphics VYaX8Ge.