【Specification】Model: A1819.Capacity: 49.2Wh/4314mAh. Voltage:11.4V.Battery type: Li-ion polymer.Battery Color: Black.Up to 500 recharge cycles over the life of the battery.100% New from Manufacturer.High quality materials, top circuit boards and smart chip.【Compatible Models】Compatible with Macbook Macbook Pro 13" inch A1706 Late 2016 Mid 2017 with Touch Bar Version MLH12LL/A MLVP2LL/A MNQF2LL/A MNQG2LL/A MPXV2LL/A MPXW2LL/A MPXX2LL/A MPXY2LL/A.【Compatible Part Number】A1819, A1706, A1706(EMC 3071), A1706(EMC 3163), 020-01705.【Quality Promise】Grade A cells. And makes it safe through overcharge and over-discharge, over-current and short circuit protection. All batteries have PSE/CE-/FCC-/UL/RoHS Certified for safety.Our replacement laptop batteries are 100% compatible with original batteries.