VSKA1099 Features: * Safe lithium-ion technology * Smart technology communicates accurate information to the computer * No memory-effect * Overcharge protection built in * 6 Cells * Provides 4400mAh of capacity * Lithium-ion rechargeable * Replaces the following ACER part numbers: UM08A31-B, UM08A51-B, UM08A71-B, UM08A72-B, UM08A73-B, UM08A74-B, UM08B31-B, UM08B71-B, UM08B72-B, UM08B73-B, UM08B74-B, LC.BTP00.017-B, LC.BTP00.018-B, 934T2780F-B, UM08A52-B * Fits the following ACER models: ACER ASPIRE ONE 10.1INCH (BLACK), ACER ASPIRE ONE 8.9INCH (BLACK), ACER ASPIRE ONE A110, ACER ASPIRE ONE A110-AB, ACER ASPIRE ONE A110-1295, ACER ASPIRE ONE A110X, ACER ASPIRE ONE A110L, ACER ASPIRE ONE 8GB 8.9", ACER ASPIRE