This is an early 2015 model. Right out of the box the battery didn’t last even an hour. It is a nice laptop in its size and display. The price to replace the battery on this laptop without warranty is 300$. Had we not fully returned it and just got a new one sent to us even if the battery was better it will eventually have the same issue. We brought it to an apple certified repair place and they told us this. That these models the battery is almost welded to the bottom of the laptop so that’s what makes the battery process so difficult. Had it been any other of the older laptops such as the air this wouldn’t have been an issue. It just isn’t worth it to pay 500$ for the laptop then 300$ for a new battery when you could just buy a brand new one for that same price.