Features: 1.REPLACEMENT PART NUMBER: Laptop battery replacement can be used to replace for A1527 A1705 A1534 A1536 (for EMC 2991) A1534 (for EMC 2746) A1334 (for EMC 3099). 2.COMPATIBLE MODELS: Replacement for MacBook 12 Inch (Model A1534, Release 2017 2016 2015) with for Retina Display MF855LL A MK4M2CH A MF855CH A MF865CH A MF862LL A, etc. 3.LONG BATTERY LIFE: Laptop battery replacement is made of premium ABS material for rugged durability and up to 500 charge cycles over the life of the battery. 4.EASY TO USE: Laptop battery can be used after installation, but disassembly and installation is complicated, we recommend referring to the video or finding a professional. 5.SAFE TO USE: Replacement laptop battery is tested to strict quality control standards, has overcharge and discharge circuit protection, low power consumption, portable and durable. specification:Item Type: Laptop Battery Replacement Material: ABS Applicable for A1534 Laptop Battery Polymer Lithium Battery: 5474mAh (Shipped with Matching Battery) Battery Type: Li ion Color: Black Voltage: 7.56V Electrical Power: 40.28Wh Applicable for Retina Display: for MF855LL A MK4M2CH A MF855CH A MF865CH A MF865LL A MJY42CH A MLH72LL A MLH82LL A MLHA2LL A MLHC2LL A MLHE2LL A MLHF2LL A MMGL2LL A MMGM2LL A, MNYG2LL A MNYH2LL A, MNYJ2LL A MNYK2LL A MNYL2LL A MNYM2LL A MNYN2LL A MNYF2LL A MJY32LL A MK4M2LL A MK4N2LL A PackageList: 1 x LaptopBattery 2 x Screwdriver 1 x SuctionCup 2 x AuxiliaryTools 2 x Gloves 1 x WipingCloth 2 x InstructionManual NoteThe battery disassembly of this for MacBook is a bit complicated, especially removing the glued battery from the for MacBook Pro. We recommend that you search for related battery replacement videos on the Internet in advance, or seek the help of professional technicians when installing the battery. We will not take any responsibility for any damage caused by improper operation. Hope to understand.