It shipped with 5138 mAh, peeked at 5176 mAh (3 days later), and has now been on a steady drop to 5093 mAh. Like you, I had it plugged in most of the time or unplugged at 90-100% battery. Just recently, I started using AlDente to limit the maximum charge while plugged in, going to see what happens after a few weeks. 1GB = 1 billion bytes and 1TB = 1 trillion bytes; actual formatted capacity less. Testing conducted by Apple in October 2016 using preproduction 2.0GHz dual-core Intel Core i5-based 13-inch MacBook Pro systems with a 256GB SSD and 8GB of RAM (wireless web test, iTunes movie playback test, and standby test). Battery Capacity： 55Wh : 39Wh : 35Wh : 65.5Wh : Laptop Size： MacBook Air 13 inch : MacBook Air 11 inch : MacBook Air 11 inch : MacBook Pro 13 inch : MacBook model： A1466 (Mid 2012,Mid 2013,Early 2014,Early 2015, Mid 2017) A1369 (Late 2010, Mid 2011) A1465(Mid 2012,Mid 2013,Early 2014,Early 2015) A1370(Mid 2011) A1370 (Late 2010) Apple M1 SoC can be a real threat to x86; M1 in 13-inch MacBook Pro and Mac Mini beats Core i9 in MacBook Pro 16 but performs similarly with or without active cooling 11/12/2020 The HP Spectre x360 14 with a high-resolution 13.5-inch OLED display falls a few hours short of the M1 MBP, getting up to 7 hours** of battery life. It’s spec’d with an Intel 11th Gen Core i7 Apple MacBook Air 13 inch 2015-03 Asus Apple 128 GB (iPad Pro 12.9 NVMe) Apple MacBook Air 13 inch 2015-03 HD The effects of the minimally higher battery capacity and the better efficiency MacBook Pro Mid 2012 Battery Full charge Capacity 4865 mAhafter 148 Cycles. Hi, My Macbook pro Mid 2012 is 770 Days old and it has completed 148 Cycles. Battery health says "Normal". but full charge capacity says "4864 mAh" . MacBook Pro (Retina, 15-inch, Mid 2012–Mid 2015) MacBook Pro (13-inch, Mid 2012–2020) MacBook Pro ΔΔΔ Battery life depends on device settings, environment Replace a 7336 mAh battery compatible with MacBook Pro 15" Retina Mid 2018 to 2019 A1990 model laptops. 83.6 Watt Hours (Wh). 11.4 Volts (V). Number of reviews: 25 $129.99 09/20/2015 at 5:13 pm . No Full Charge Capacity (mAh): 6513 Health Information: Cycle Count: 304 Condition: (up to 1248 already for my Macbook Pro 2012), remaining battery capacity (52% rYauC.