I bought what I thought was an ego c starter kit from eBay for $25.(extremely new to all of this). After a couple of days the battery quit holding a charge so I contacted the seller (many transactions, 100% positive feedback). She apologized saying that happens @maybe 1/500 times and quickly shipped another battery with no questions asked. 72 hours later, I started having the same issue. Realized that when the atomizer was not on,the battery seemed to be operating normally and after doing research came to the conclusion that it was a bad atty. purchased some replacements made for ego c/t and when I got them and tried to attach one to a battery they were much wider, therefore unable to screw in. Contacted that seller and he offered a full refund but did say he tried them in an original joyetech ego c and they fit perfectly. Also offered to give me a great deal on another vape (voltage regulated with LCD screen). Don't think he was lying. So I asked the battery seller what size she sold me and she said they were "1100mAh ego ce4 ego t ego c." I did see one review follow up saying his broke and that it was a 900 not an 1100... 1.) would affect the size of the atty? 2.) how can I check on this without having to bring it into a shop? Any help would be much appreciated. Thx in advance.