Drive Devilbiss Healthcare is recalling iGo2 DV6X-619 DC car adapter due to complaints of the DC power cord being hot to the touch and/or melting while used.

http://www.fda.gov/medical-devices/medical-device-recalls/portable-oxygen-concentrator-car-adapter-recall-drive-devilbiss-healthcare-removes-igo-dv6x-619-dc