Always on the go? No more worries about running out of battery power! You can back up your system with this 9-Cell Additional Lithium-Ion Battery. It lets you work seamlessly when you are on the move for business trips or vacations. This battery offers long life and consistently reliable performance you need to get the most out of your system. Guaranteed for the following laptops: Acer Aspire One 11.6" 751, 751h, AO751, AO751h Series, Acer Aspire One ZA3 ZG8 531 SP1 Series. Compatible part# UM09A31, UM09A41, UM09A71, UM09A73, UM09A75, UM09B31, UM09B34, UM09B71, UM09B73, UM09B7C, UM09B7D. Lithium Ion (Li-Ion) Netbook Battery
