Ok... I should have done more research or something on these before I went and ordered 2 of them. Flat out, they suck. Even though they do not have a battery box they are both putting out ~3.5v according to my multimeter, and they have a 8 second cutoff time. One last annoyance about them is the button. Most passthrough buttons I have seen stick out about 1 - 2 mm. This one is dang near flush with the tube. Very thin and very touchy making it hard to "pump" the button to bypass the cutoff time (which again is a crappy 8 seconds).
I didnt make this thread to whine about them, even though I feel the need to as I dropped $30 on them and they are crap, but I made this thread to warn every 510 user out here to stay clear of them. At this point, I am going to see if they will take them back in exchange for other parts. If not... well they are just going to get parted out as I DO like the connector over the others I have seen for mod-making.
I didnt make this thread to whine about them, even though I feel the need to as I dropped $30 on them and they are crap, but I made this thread to warn every 510 user out here to stay clear of them. At this point, I am going to see if they will take them back in exchange for other parts. If not... well they are just going to get parted out as I DO like the connector over the others I have seen for mod-making.