The A1286 computer machine is divided into two batteries. Press machine production date at the bottom of the battery model, such as A1286, 2009, and at the bottom of the machine is made in the first half of 2010 to write M1047 battery model is A1321 and MB985 with MB986 both, battery model is also A1321

A1286 models made in the second half of 2010 and 2011, at the bottom of the machine wrote M1055, with model number MC721 MC723 models A1382 are these batteries