I still read just above 4v after 16 hours and 3ml of juice.
say what........

I still read just above 4v after 16 hours and 3ml of juice.
Nope the 1600mAh batt was below 4v after 8 hours. But the cut off charge voltage for most 18650 is 4.25v and 4.15v ish on most 18500. Not sure on how many bottoms are left. It would be no problem to get a few extra on the next batch though. There may be some that would prefer the shorter bottom, maybe you could trade them. LOLsay what........I might be breaking down soon to get the new bottem half so I can use that battery. The 18500 didnt get that did it?
ME TOO>>> Dancing around like a little kid on christmas eve.....
Thanks Rob for letting me in on it...
The vapor is indicative of using a 510 with an unplugged USB Passthrough modded with a charged 18650 battery.]
this was meant to be funny......
My USB passthrough battery failed for my 501 attys, so I soldered leads to one of eight 18650 batteries I had on hand. I have been chained to my passthrough, but now I am free to roam about unfettered......