JWL

I recently bought a starter kit with 4 kr808D Batteries. The 4 Cartomizers I received with the kit burned out very quickly, so I bought some juice and new cartos. The problem I am having is that the new cartos only work on my automatic batteries.(I got 2 autos and 2 manuals with the kit). Also, the new cartos fit on one of the manual batteries and some of them work and some don't, but they won't even fit on the second manual Battery. The tooling on the manual batteries is different from each other. Is this a problem with the manufacturer or is this a common problem? Why do some work and some don't? Kit was purchased from primevapor.com