Acer UM09H31 / UM09H31 Compatible Replacement Laptop Battery (Acer Aspire One 532 Series)

Acer UM09H31 replacement laptop battery is a high-quality lithium-ion battery designed for Acer Aspire One 532h series laptops and compatible AO532h netbook models. It delivers stable 10.8V output and reliable backup power for lightweight computing tasks such as web browsing, document editing, email use, and general daily applications. This battery is built to match original specifications ensuring proper fit and compatibility with Acer Aspire One 532h-2Db, 532h-21s, 532h-21b, 532h-21r, and related AO532h variants. It is compatible with part numbers UM09H31 and UM09H36 depending on configuration, and is available in both standard 6-cell and extended 9-cell versions for longer runtime. The battery includes integrated safety protections such as overcharge protection, short-circuit prevention, and thermal stability to ensure safe long-term operation. Ideal for restoring original battery life and portability in Acer Aspire One 532 series netbooks.