I've had a black silver bullet for about 2 weeks now running the protected 3.7V batteries it cam with. Today I had an 801 atomizer on it via the provided adapter and I set it on my desk after using it. Later when I tried to use it, there was no vapor produced and I tried listening closely and no noise at all. I tried another 801, and then tried 2 510's and a 901, all of which work with other batteries, and had the same result. The device will not power any atomizers. I hooked the batteries up to a battery tester and they work fine. I also used a volt reader on the end of the device and it reads 3.7V when the button is pressed. So it seems that the device puts out power but won't power atomizers. Any help?