i am having a problem with a debranded ego 1100 mah battery when i put it on charge now the button light does not go out and it always did before it may have gotten some juice in it but not too sure, my other question is does anyone know what the thread pitch and size is of a 510 connection as i have a few delivery devices that the threads are a little short on and sometimes not well threaded wanted to get a die to chase the threads. any and all help is appreciated