i am using the titan 510 manual battery. i love the manual batteries but i am very dissapointed with the atomizers that come with this ecig. even a good one only gives a good smoke for 5 days or so. after that its either burnt or has no taste. i find you get a good smoke for about three days. doesnt matter if the atomizers from totally wicked are cheaper....they dont last. as a matter of fact i have yet to find one from any brand that does. if this is the problem than id say its more expensive than smoking real cigs. when your atomizer clogs or just doesnt smoke very well i find myself wasting alot of fluid trying to figure out the problem...another expense thats adding up. i realize this is new technology but their must be something out there that gives a great smoke for a longer period. i have been doing very well not smoking. after a year of on and off again ecig analog smoking i have been smoke free for 6 weeks without one drag off an analog, but it would be cheaper to just go to the store and spend a few bucks on a pack of smokes than it is to buy another $100 worth of ecig pieces and juice. also where do you get a coupon code? what do i have to do to get a coupon code......ive spent barrels of money at totaly wicked and am wondering if i have to promise my first born child to get a coupon code. anyways..i bought 10 atoimizers on june 14th..received them june 18th...and i only have 1 unused atomizer and 1 that i am using at the moment. the others clogged in a day, one only gave me one puff and then didnt work at all, one was so clogged from the factory that when i took my first drag it was as though i sucked on a straw that someone had plugged from the otherside, and the others lasted maybe two days. nothing works..not canned air ,not boiling, not a flippn thing. i have not talked to totaly wicked yet but will after i post this comment/question. so hope somebody knows.....is there another upgrade in tech that puts the titan to shame...and where else can i purchase a manual battery. also im not interested in any of those batterys that fluid can leak into the battery itself. sorry guys but very frustrated. thanks for any help.