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

A1582 Battery inform：
Material：Lithium polymer；
Quality：335g 
Voltage :11.34V
Capcity：6600mah/74.9Wh
（If you are not sure whether the A1582 battery is suitable for your computer, please contact us before purchasing.）

Fast charging.
Up to 500 recharge cycles over the life of the battery.
Premium Grade A cells make it safe with protection circuit ensures both safety and stability.
CE-/FCC-/RoHS-Certified for safety;

A1582 A1493 Battery Compatible with MacBook Models:
MacBookPro12,1 - MacBook Pro 13 inch A1502 Retina Early 2015
MacBookPro11,1 -- MacBook Pro 13 inch A1502 Retina Mid 2014
MacBookPro11,2 -- MacBook Pro 13 inch A1502 Retina Late 2013

Compatible with MacBook Pro Part Numbers:
MJLU2LL/A，MF841LL/A，MF839LL/A
BTO/CTO，MGX92LL/A，MGX72LL/A
ME867LL/A，ME864LL/A，MGX72LL/A

►Strictly Forbidden to tear the battery block like that, it will cause the battery block to tear and cause the battery to short-circuit and swell.
►Can not removed the protection film when installing the battery.

Note:
-When run out of power and long time no use, the battery will swell because of the self-discharge gas.Therefore, Please charge the battery once a month when you don't use the battery.
-By performing a complete effective charging and discharging for the battery every month, you can ensure a proper storage status and a reasonable service life to the battery.
-! Do not expose the battery near a heat source, a moist place, or a rainy place.
-! Do not burn batteries. Keep the battery far away from the fire source and other extreme heat sources.
-There is a film on the surface of the battery to prevent the battery from being torn during installation. There may be air bubbles in this layer but the battery is new. Please do not tear off the film during installation.