6 Cell Replacement Battery Acer Aspire One 522 This brand new Acer Aspire replacement laptop battery features lithium-ion cells. Li-ion battery technology provides longer run times with less weight. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This laptop battery replacement is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty. Brand: Voltage: Battery Capacity: Battery Type: Cell Origin: Color: Assembly Origin: Warranty: Guarantee: Useful Life: XTend replacement computer battery 11.1 Volts 4400 mAh 6 Cell Li-ion Samsung (South Korea) Black Assembled in China 2 Year Warranty 30 day full satisfaction guarantee 300-500 recharge cycles You can expect about 2 hours to 2-1/2 hours of run time with this computer battery when new, depending on your energy use. Like all Li-ion primary batteries, your run time will decline over time. This battery replaces the Acer Aspire One 522 D series laptop batteries. Replaces these many Acer Aspire laptop battery part numbers: AK.003BT.071 AK.006BT.074 AL10A31 AL10B31 AL10G31 BT.00603.121 LC. BTP00.128 LC. BTP00.129 Laptop Battery Express only deals with brand new premium computer batteries. We never carry recycled or used batteries. We only use the highest quality cells inside the battery pack so you will have a long service life (300-500 recharge cycles) . We do not use cheaper battery cells which can wear out in a little as 6 months. Our inventory turns rapidly and you will always receive a freshly manufactured battery.