First 10.1" Acer Aspire One Batch has 8 hour battery

From Laptop -

According to Acer, the first batch of its 10.1" Aspire Ones inadvertently shipped with a 5800-mAh six-cell battery, which means about 8 hours of runtime including continuous WiFi, instead of a 4400-mAh battery (less than 5.5 hours runtime).

Despite the error, Acer has no plans to raise prices. So if you are planning to get a 10.1" Aspire One, you might as well try to get your hands on one of these. Acer has not released the actual number of units shipped with the larger-capacity battery, so the opportunity will last only until the current inventories last.

To tell if your unit has the larger-capacity battery, pop the battery off the back and check the label for "5800 mAh."