I think what VAPNJ350 is getting at is that if you want good
batteries buy the good ones. If you can't swing it monetarily and need something cheap that will provide a decent level of performance, the CCV ones are worthwhile.
There's a lot of sites out there selling some bad, useless, or downright dangerous stuff to use in an ecig
device. These sites generally cater to RC, hobbyist types, flashlight fans, and just about anything but ecigs. The
batteries might be great stuff for those uses. Ecigs are weird creatures that have odd power demands.