Acer ANJ 1 / AQJI Laptop Battery (11.1V, 4800mAh)

Device Type: Replacement Laptop Battery (Li-ion)
Voltage: 11.1V
Capacity: 4800mAh (also commonly listed as 4400mAh / 5200mAh by various vendors)
Cell Count: 6 Cells
Color: Black
Compatible Part Numbers: BTP-ANJ1, BTP-AQJ1, BTP-ARJ1, BTP-AOJ1, BTP-APJ1, BTP-AS3620, BT.00603.012, BT.00604.005, BT.00605.007, BT.00607.003
Compatible Models: Acer Aspire 2420, 2920, 3620, 5540, 5560 series; Acer Extensa 4330 / 4630 series; Acer TravelMate 2420, 3240, 3280, 4330 series
Key Specs: Acer ANJ1/AQJ1 Replacement Battery, 11.1V 4800mAh, 6-Cell Li-ion, BTP-ANJ1/BTP-AQJ1 Compatible, Built-in Overcharge/Short-Circuit Protection, Direct Replacement
Usage: Restoring Runtime for Older Acer Aspire/Extensa/TravelMate Laptops, Replacement for Worn-Out Original Batteries, Spare/Travel Battery