CWK New Replacement Laptop Notebook Battery for Acer Aspire 5733 5733Z 5741ZG 5742 5742G 5742Z 5741 5741G 5741Z 5742ZG 5750 5750G 7552 7552G 7560G AS4250 7551 7551G 5750Z 7551ZG 5750ZG 7551Z 5755 7251 5755G 5755Z 5755ZG 7741 7741G 7750 7750g 7750ZG AS5741 7741Z 7741ZG SERIES Acer Aspire E1-421 E1-431 E1-471 E1-521 E1-531 E1-571 4551G 4771G Acer TravelMate 4370 5335 5340 7340 AS10D31 AS10D3E AS10D41 AS10D51 4740 4740G 4740Z 5542 5542G 4750 5335G 5335Z 5340G 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!