User blog comment:Deshiba/Are you Critting me !?/@comment-7552974-20130518153114/@comment-7996065-20130518172309

45% crit chance would translate into a crit around every 2nd attack (but actually a little less).

1 Attack = 45 charges

2 Attacks = 90 charges

3 Attacks = 35 charges (1 crit)

4 Attacks = 80 charges (1 crit)

5 Attacks = 25 charges (2 crits)

6 Attacks = 70 charges (2 crits)

etc etc. I'd kind of surprised even OP got this wrong.