My Lazer LPV3 at 3.7 (10440 batt, 2 to 3 hours) seems to produce more than my 510 and 808 batteries do. So much so that since I got my Lazers I don't use the two new 808 batts I just bought. They (I have a 510 and 808) produce almost as well as my 5v passthrough. for me. BTW, I use 808 and...