the thing about the a/c adaptor is that its like slipping in a fully charged battery everytime......no charging...... seeems like the hits are way more consistent.
no popping the battery out at the end of hit.....there is a little on/offf switch. also a rotary switch on the cord allowing you to adjust the amount of power/heat.....once you figure it out its the bomb...by adjusting heat it allows you to conserve even more nug