An e-vapor device may include a vaporizer assembly that is detachably coupled to a battery assembly via a connector. The connector may include a male connecting portion and a female connecting portion. The male connecting portion may include mating arms extending from a rim of the male connecting portion. The female connecting portion may include an inner surface and lugs on the inner surface. The mating arms of the male connecting portion are configured to engage the lugs of the female connecting portion so as to electrically couple the vaporizer assembly and the battery assembly. A knurled pattern may also be provided on an outer surface of the male connecting portion and/or female connecting portion so as to conformally interface with a reversed pattern on an inner surface of the vaporizer assembly and/or the battery assembly.