Puredick&reg; Laptop Battery for Apple A1331 A1342 (Only for Late 2009 Mid 2010) - 12 Months Warranty [Li-Polymer 6-cell 5000mAh, 55Wh, 10.95V] Premium replacement battery: constructed by newest & original Sony Grade A cells with 5000mAh high capacity ensure fast charge and low self -power consumption for long standby time. Built in advanced and high performance PCB: make it safe with overcharge & over-discharge, over-current & short circuit protection. Precision-engineered and rigorously tested for voltage (10.95V), compatibility and safety to meet and exceed OEM specifications. Long cycle life: Up to 500 recharge cycles over the life of the battery which also extends the life of your laptop at same time. High quality certified: CE-/FCC-/RoHS-Certified for safety and come with 12 months warranty and hassle -free service all the year round.(Respond in 24 hours by email)