RN4081 - try RN4081 cartomizers. If a 7-11 near you sells ecigs see if they have njoy Npro aka 2-n-1 carts (are cartomizers - they screw on). Else order one pack of prefilled cartos from AZSMokeFree.com or Njoy or Smokestik. If those work then there are blanks around too (Vaporkings.com, Goodprophets). RN4081 has the same threading as DSE108 and DSE103. And AZSMokeFree has manual RN4081 batteries which I think should be totally sealed on the threaded end and very safe from getting damaged or killed by juice leaks the way autos often are. This becomes more important when you are refilling cartomizers which will occasionally leak onto the end of the battery. Manuals also make it easier to get a good hit.
and if that does not work try 510 threading in case it is an L88b or other 51-threaded device. Vaporkings.com has some prefilled Boge standard resistance cartomizers for 510. Try a pack of those. if it ends up being a 510, I recommend switching to Joye brand 510 manul, 510 mega xl manual, or the fat long charge models Ego or the popular clone Riva 510 (Riva 510 best bought at Liberty-Flights.com where they are 3.7v)
and if that does not work try 510 threading in case it is an L88b or other 51-threaded device. Vaporkings.com has some prefilled Boge standard resistance cartomizers for 510. Try a pack of those. if it ends up being a 510, I recommend switching to Joye brand 510 manul, 510 mega xl manual, or the fat long charge models Ego or the popular clone Riva 510 (Riva 510 best bought at Liberty-Flights.com where they are 3.7v)
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