NinjaBatt Laptop Battery for Apple MacBook Pro 15" A1382 (Core i7 2011 & Mid 2012) MD103 MD104 MD318 MC723 - High Performance [Li-Polymer/58Wh/10.8v] PREMIUM QUALITY REPLACEMENT NOTEBOOK BATTERY: Bring your laptop back to life with Ninjabatt's high quality laptop battery - Made of high quality materials, top grade battery cells and packed with safety features. TRUE CHARGING CAPACITY THAT LASTS: Every one of our replacement notebook batteries are tested to meet OEM specifications. SAFETY FIRST: Dont fall into buying cheap and unsafe batteries, our batteries are UL/CE-/FCC-/RoHS certified for safety and packed with a variety of safety features, including short circuit, overheat, and overload protections. HIGH QUALITY COMPONENTS: Our Laptop batteries are assembled from top quality material and circuit boards to ensure durability and performance, our batteries are equipped with grade A battery cells that provide up to 500 charging cycles. 12-MONTH WARRANTY AVAILABLE ON ALL LAPTOP BATTERIES: Weresoconfidentintheperformanceofour replacementlaptopbatteriesthat wereincludinga12-monthwarrantywith everysinglepurchase. Reliable performance Extended battery life Safe use anytime, anywhere