I have 901 cartomizers, and my pcc fits my manual batteries as well, there is a 'niche', just be sure to put the button there, it is one of the nice metal ones...I only found cartomizers at one place (that would not need an adaptor), I'd have to check my receipts to see where I got it from, works good tho, and it's true you're not supposed to drip on autos but I have been on the same two batts since 11/10 with no issues