PENERGY compatible Laptop Battery Acer Extensa 3100 4420 4620 TravelMate 2420 4320 BTP-AQJ1 BTP-ARJ1 Specification: - Voltage: DC 11.1V - Capacity: 4400mAh - Components: 6 Cell - Color: Black - Condition: Brand New Replacement Product, works as good as the Genuine parts, 100% OEM Compatible Replace Part Numbers - BT.00603.012, BT.00604.006, BTP-AMJ1, BTP-ANJ1, BTP-AOJ1, BTP-APJ1, BTP-AQJ1 - BTP-ARJ1, BTP-AS3620, BTP-ASJ1, BTP-B2J1, GARDA31, GARDA32, LC.BTP00.021 - LC.BTP01.010, LC.TG600.001, MS2180 Fit Laptop Models Aspire - 3640, Aspire 3670, Aspire 5590 - Aspire 2420, 2920, 2920Z, 3620, 5540, 5550, 5560 Series Extensa - 3100, Extensa 4620, Extense 4620-4691, Extense 4620-6402, Extense 4620Z Extensa 4120, 4630 Series TravelMate - 4320, TravelMate 4520, TravelMate 4720, TravelMate 6252, TravelMate 6252-100508Mi, TravelMate 6293-6311 - TravelMate 2420, 2440, 3240, 3250, 3280, 3300, 6231, 6291, 6292, 6492, 6493, 6553, 6593 Series Package Include: - 1 x Laptop Battery