Compatible Brand: Acer Compatible Laptop Models: Acer: Aspire One ZA3 Series, Acer Aspire One ZG8 Series, Acer Aspire One 531 Compatible Part Numbers: ACER:UM09A31, UM09A41, UM09A71, UM09A73, UM09A75, UM09B31, UM09B34, UM09B71, UM09B73 Cell type: Li-ion Capacity (m A): 5200 Capacity Range (m A): 5000-7000 Voltage (v): 11.1 Dimension (cm): 20.3x 5 x 3.1 Shipping Weight (Kg): 0.375