The new ones are called turbos,I beleive they have a smaller battery end hole, in your OP you asked about larger carts, vapornines new cartos are awsome, they hold more liquid and
vape like crazy. It's my next order as soon as the next shipment comes in.
BTW I recently figured out that some suppliers
juice bottles dispense roughly 1/2 the size drops of others, being a newbie I was thinking wt heck, why can't i get 40 drops to absorb in my carto, it all can be a little confusing, but it's all good.
I read where Leaford said they fill factory cartos with a syringe and I decided to try to just duplicate a factory fill, my experiance was about an avg. of .75 ml in a washed and dried carto.(thats a condom filled roughly 3/4 full which is roughly 20 drops in 1 suppliers bottle ) with out over filling, I think lol, I'm new to this to