CWK High Performance New Laptop/Notebook Li-ION Battery for Acer Aspire 5560 (15) 5736G 5749 5749Z 5750Z 5750ZG 5755 7750Z AS5250-0468 AS5250-0639 AS5250-BZ873 AS5560-Sb613 AS5733Z-4469 AS5733Z-4477 AS5733Z-4851 AS5750-6493 AS5750-6667 24 Months Warranty Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 11.1 Volt (10.8 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!