The button give it away but are they knock-offs
Which came first,the joyetech or the other,egg or chicken?
I own a couple of those diamond shaped buttons batteries and they dont fail so no worries
Look at the buttons on the patterned 650s you posted...those are Joyetech KSD have the same type but chromed if I'm not mistaking,then that 3rd company with the diamond shaped buttons.
People criticize those a lot and call them knock-offs,but they use the same electronics and batteries and have the same warranties so wth right?