Here is the TECC Mini Electronic Cigarette Operation & user’s manual. It contains compatibility requirements, power on and power off, plus component replacement.
TECC Super Electronic Cigarette Operation & user’s manual (5-page guide): mounting recommendations, control and indicator descriptions, and also fault and error codes.
Detailed Operation & user’s manual for the TECC iClear Series that explains component overview, assembly instructions, together with fault and error codes.