Hi, just wondering if this happens to anyone else. I currently have a Janty eG0, and I previously owned a Joye 510. With both models, there are times that I plug the batteries in to charge, the light on the charger goes red, and they seemingly charge up (meaning that the light goes green after a few hours). Sometimes, when the light is green I remove the battery from the charger and press the button, but the light does not come on, and the atomizer does not get hot. Seems like the battery didn't charge, even though it appeared to. Anyone else experience this?