Important to find for MacBook model number: About this Mac --> More info... --> Serial number--> Check your for MacBook's version on official website or Google with the SN. (Please check the for MacBook Pro Model Number on the laptop back case and Make Sure Your Own Laptop Battery Model Before Place Order!)

Specifications:

Battery Type: Li-ion polymer

Battery Condition: Brand New

Battery Voltage: 7.55V / 7.6V

Battery Capacity: 39.71Wh / 40.28Wh

Compatible Part Number:

A1527 A1705 A1534 A1534(EMC 2991) A1534(EMC 2746) A1534(EMC 3099) 613-01923-A 661-02267 613-01926 613-01923-01

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Please check the original battery model, shape & connector, and make sure you get the correct one.

Compatible Laptop Models:

For MacBook 12 Inch (Model A1534, Release 2017 2016 2015) with Retina Display

For MacBook 12 Inch A1534 (Early 2015) Series:

For MacBook 12" Early 2015 BTO/CTO:1.3 GHz Core M (M-5Y71)

For MacBook 12" Early 2015 (Gold): MK4M2LL/A (1.1 GHz Core M)

For MacBook 12" Early 2015 (Space Gray): MJY32LL/A (1.1 GHz Core M)

For MacBook 12" Early 2015 (Silver): MF855LL/A (1.1 GHz Core M)

For MacBook 12" Early 2015 (Gold): MK4N2LL/A (1.2 GHz or 1.3 GHz Core M)

For MacBook 12" Early 2015 (Space Gray): MJY42LL/A (1.2 GHz or 1.3 GHz Core M)

For MacBook 12" Early 2015 (Silver): MF865LL/A (1.2 GHz or 1.3 GHz Core M)

MF855CH/A, MF865CH/A, MK4M2CH/A, MJY42CH/A.

For MacBook 12 Inch A1534 (Early 2016) Series:

For MacBook 12" Retina A1534 (EMC 2991)

For MacBook 12" Early 2016: MLHA2LL/A* (1.1 GHz Core m3 M3-6Y30)

For MacBook 12" Early 2016: MLHC2LL/A* (1.2 GHz Core m5 M5-6Y54)

MLH72LL/A, MLH82LL/A, MLHE2LL/A, MLHF2LL/A, MMGL2LL/A, MMGM2LL/A.

For MacBook 12 Inch A1534 (Mid 2017) Series:

For MacBook 12 inch Retina A1534 (EMC 3099)

For MacBook 12" Mid 2017: MNYG2LL/A (1.3 GHz Core i5 I5-7Y54)

For MacBook 12" Mid 2017: MNYF2LL/A* (1.2 GHz Core m3 M3-7Y32)

MNYH2LL/A, MNYJ2LL/A, MNYK2LL/A, MNYL2LL/A, MNYM2LL/A, MNYN2LL/A.