they are not rechargable......I cant believe I did that. I opened them and charged them overnight. I was wondering why they were so hot. They still read 3v each but in my mod I am getting 4.5-5v with the power on but they wont fire an atty. They work in other things though. Thanks guys for pointing out that they were not rechargeable, my bad. Thanks for the help, I will order some good cr2's from madvapes. (although I just ordered 4 bottles of juice from them, the top vapes, it says on it, soooooo horrible. now I have 4 bottles I wont be using. Unless someone knows how to get the alcohol taste to go away....)