The 15" 2015 MBP was sold by Apple up to mid 2018, which is less than 5 years ago. In any case, battery replacement is 10 years since distributed for sale (provided parts are available): Reactions: darwinboxselector and curnalpanic
9B9hiy. I recently purchased a used MacBook Pro Retina 15” mid 2015. It’s battery cycle is 185 and normal. I used it for quite a bit and I’ve only used it for 4 hrs and 15 mins and it’s already down to 16% battery. A lot of people said it was normal. I could potentially get a battery replacement for free.
SNSYIY A1398 MacBook Pro Battery A1494 A1618 Replacement for MacBook Pro 15 Inch Retina A1398 (Late 2013, Mid 2014, Early 2015), Laptop Battery A1494 A1618 8440mAh 4.6 out of 5 stars 516 $66.98 $ 66 . 98 View Statistics: Past 24 Hours: 68. Past 7 Days: 388. Past 30 Days: 1,577. All Time: 748,846. 2.3GHz, 2.6GHz, or 2.7GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.7GHz) with 6MB shared L3 cache. MacBook Pro 15" Retina Display Mid 2012 troubleshooting, repair, and service manuals.