Puredick&reg; Laptop Battery for Apple A1322 MacBook Pro 13" A1278 - Constructed by Sony- 12 Months Warranty [Li-Polymer 6-cell 5000mAh, 10.95V] Premium battery: the Puredick battery is made of 100% Grade A cells (Sony) for 5000mAh premium capacity and reliability instead of low grade or recycled cells, support long standby time. Precision-engineered and rigorously tested for voltage , compatibility and safety, 100% OEM Compatible & 100% New Components - Guaranteed to meet the specifications of the original device. High quality connector provides stable input current for safety and durable use; fire-resistance ABS+PC alloy battery shell prevents the damage of computer. Built in advanced and high performance PCB: make it safe with overcharge & over-discharge, over-current & short circuit protection. Long cycle life: Up to 500 recharge cycles over the life of the battery which also extends the life of your laptop.( Respond in 24 hours by email.)