CWK&reg; New Replacement Laptop Notebook Battery for Acer Aspire 2920 3620A 3623 2420 5590 5541 5550 5560 BTP-B2J1 Acer Extensa 4220 3100 4420 4120 4620 4630G 4620z 4630 4630Z Acer TM07B41 GARDA31 BTP-ARJ1 BTP-ANJ1 BTP-ASJ1 eMachines D620 BTP-AQJ1 BTP-APJ1 Acer TravelMate 3240 6553 Extensa 4420 4630Z 5560 Acer Extensa 3100 4220 4420 4620 4620-4691 4620Z 4630G-642G32Mn 4120 4130 4230 Extense 4620-6402 4630 4630-4658 4630Z Acer TravelMate 6291 6292 6293 6452 6492 6493 6553 6593 4530 6230 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!