Replacing the Battery
From: http://en.flossmanuals.net/XO/ReplacingBattery You do not need to remove the battery unless it is faulty. For example, a faulty battery might not charge, or might lose its power very quickly. Here are instructions for removing a faulty battery. Refer to wiki.laptop.org/go/Directory_of_repair_centers to get to the most recent directory of repair centers, and ask for a replacement battery for your XO.Removing the battery
To re-insert the battery, refer to the Charging chapter.
Locating a battery for replacement