Originally Posted by
dwmckee
Hey, has anyone figured out a reliable conversion factor for DX lumen and mAH over ratings? Like maybe multiply DX flashlight lumen ratings by .6 to get a more realistic measure of the real light output you can expect, and multiply DX mAH battery ratings by .7 or something like that to compare it to a normally rated battery.
There is no consistent exaggeration factor -- you'll just need to look up the specific light and see what people say.
Note that I've gotten their basic 18650 batteries ($8 for two) and I think they claim 2400 mAh and when I explicitly measured a few of them they were all right at the rated capacity. I've heard of problems with the batteries with higher ratings, but these ones have been right on the money.