Replacing a lost charger
At this point, we really don't have any replacements other than warranty return.
You can bring the whole laptop and charger to a Radio Shack store or shop online http://www.radioshack.com/sm-12vdc-1500ma-socb-ac-adapter--pi-2190632.html use M tip part number 273-1716. Or take your XO to another comprehensive electronics store like Circuit City to find an alternative charger.
- The M tip does not work. This is documented on several other pages; see e.g. http://www.flickr.com/photos/48600098314@N01/2113909936
Some IBM power adapters have the same power connector as the XO adapter. Adapters known to work are the Thinkpad 600E, X20, X40 and probably all adapters for the T and X series until Lenovo branding. Good sources for IBM adapters are eBay.
From our wiki, the DC power connector is:
DC power: 5.5mm (2.1mm center pin) connector; 11 to 18 V input usable, –32 to +40V input tolerated; power draw limited to 15 W.
What this means is that any charger you find whose tip fits into the XO's power port, and which outputs between 11-18V (preferred) should work beautifully.
In many cases, the power adapter is functional, but the connection between the cord and the plug has been damaged. Those who are comfortable with a soldering iron can try replacement part CP3-1000-ND or SC1052-ND, both available from http://www.digikey.com ($5 USD handling charge applies)