There is a huge thread on the LX2. Do a google search, cpf only, found at the top of every CPF page. Plug in RCR123 + LX2, or something similiar and some posts will pop up. Like DimeRazorback said, do some searching.
Miracle, you asked and got answers about this issue in your thread that DM51 moved to the battery forum. You are, in effect, making duplicate posts in different threads about the same issue, which is against CPF policy. Confine your questions to the other thread.