If so the coil will need to be changed from time to time... I get a week or two outta the coil itself but I do rewick about every 2-3 days. This is if you are using the rba,if you are using the stock prebuilt coils simply buy yourself a few more kanger occ coils. Note the ohms of the coil you are using now as kanger offers a few different coils all in different ohms.....hope this helps ya but we could use a Lil more info from you.