The Ultimate Vaporizer:

Adjusting the center contact (can be performed on batteries, atomizers, and chargers):

A great way to fill a KR808D1 Cartomizer:

How to fill a DCTank and Dual Coil Cartomizer:

How to fill a CE3 Smokymizer:

Filling a CE2 Clearomizer:

Ego-Tank Atomizer: How to remove and reinsert spike plate for cleaning: