"sealed" is a bad term that I myself am trying to correct around the forums. Sorry. They are meant to be more drip resistant. The holes are under the post and an accidental drip from your cart is less likely to fall right into the battery and kill it. I'll look around for adapters with slots in the post. Look at the bottom of your cartomizer. See how the center post has a slot running horizontally? This is what you need in an adapter. All 808 stuff has this slot. Now that Mattvus figured it out, I'm shopping for some myself so I'll get back sometime today.