Yes - if they are 1ml cartomizers. And most standard KR808D-1 cartomizers (Vapor4Life, Volt, Bloog, G6, Kanger horizontal coil, Boge, etc) are 1ml. A 1ml carto is the same thickness as the battery and abut 1.5 inches long.
And technically 20 drops is 1ml. But bottles have drops that vary in size so it could be more than 20 drops to make an ml. it depends on the bottle.
BTW - I would never run a carto dry. That's how you singe them. I keep cartos damp and can get 7+ days use out of each.