A vaporizer comprising: a battery portion comprising: a battery housing segment proximate a first end of the battery portion, the battery housing segment housing a battery, and a cartomizer receiving segment proximate a second end of the battery portion, a chamber provided within at least a portion of the cartomizer receiving segment, wherein the chamber has an insertion end distal from the battery housing segment and a base end proximate to the battery housing segment; battery electrical contacts provided at the base end of the chamber; an outer shell commonly shared by the battery housing segment and the cartomizer receiving segment; and a cartomizer configured for insertion into the distal insertion end of the chamber of the cartomizer receiving segment of the battery portion, the cartomizer comprising: a cartomizer body configured to hold a vaporizable substance; a heating element within the cartomizer body configured to heat the vaporizable substance; cartomizer electrical contacts on an exterior of the cartomizer, cartomizer electrical circuitry configured to direct an electrical current between the cartomizer electrical contacts and the heating element, and a mouthpiece in fluid communication with the cartomizer body, wherein the mouthpiece extends from the insertion end of the chamber when the cartomizer body is inserted in the chamber, wherein the battery electrical contacts are configured to contact the cartomizer electrical contacts when the cartomizer is inserted in the chamber, wherein the heating element is configured to be activated by the electrical current and to heat the vaporizable substance, wherein the vaporizer further comprises charging contacts at or proximate to the first end. a battery portion comprising: a battery housing segment proximate a first end of the battery portion, the battery housing segment housing a battery, and a cartomizer receiving segment proximate a second end of the battery portion, a chamber provided within at least a portion of the cartomizer receiving segment, wherein the chamber has an insertion end distal from the battery housing segment and a base end proximate to the battery housing segment; battery electrical contacts provided at the base end of the chamber; an outer shell commonly shared by the battery housing segment and the cartomizer receiving segment; and a battery housing segment proximate a first end of the battery portion, the battery housing segment housing a battery, and a cartomizer receiving segment proximate a second end of the battery portion, a chamber provided within at least a portion of the cartomizer receiving segment, wherein the chamber has an insertion end distal from the battery housing segment and a base end proximate to the battery housing segment; battery electrical contacts provided at the base end of the chamber; an outer shell commonly shared by the battery housing segment and the cartomizer receiving segment; and a cartomizer configured for insertion into the distal insertion end of the chamber of the cartomizer receiving segment of the battery portion, the cartomizer comprising: a cartomizer body configured to hold a vaporizable substance; a heating element within the cartomizer body configured to heat the vaporizable substance; cartomizer electrical contacts on an exterior of the cartomizer, cartomizer electrical circuitry configured to direct an electrical current between the cartomizer electrical contacts and the heating element, and a mouthpiece in fluid communication with the cartomizer body, a cartomizer body configured to hold a vaporizable substance; a heating element within the cartomizer body configured to heat the vaporizable substance; cartomizer electrical contacts on an exterior of the cartomizer, cartomizer electrical circuitry configured to direct an electrical current between the cartomizer electrical contacts and the heating element, and a mouthpiece in fluid communication with the cartomizer body, wherein the mouthpiece extends from the insertion end of the chamber when the cartomizer body is inserted in the chamber, wherein the battery electrical contacts are configured to contact the cartomizer electrical contacts when the cartomizer is inserted in the chamber, wherein the heating element is configured to be activated by the electrical current and to heat the vaporizable substance, wherein the vaporizer further comprises charging contacts at or proximate to the first end. wherein the battery electrical contacts are configured to contact the cartomizer electrical contacts when the cartomizer is inserted in the chamber, wherein the heating element is configured to be activated by the electrical current and to heat the vaporizable substance, wherein the vaporizer further comprises charging contacts at or proximate to the first end.