Originally Posted by
RevengeoftheSeth
Hey all,
Normally I don't have a problem with resistor calculations, but this is more of a question of theory. Since a Li-Ion puts out 3.7V and a green Lux III has a Vf of 3.9V, would the current from a protected 18650 blow the LED or will it be fine without a resistor? I do know it will get hot, and I'm not using an MHS setup for this build. I don't have room for an alternate battery solution and I'd hate to stick a fat 1Ohm 1W resistor in there (boo for resistor bricks).
I know some people go resistorless when the voltages match, so I am looking for voices of experience to chime in. I'd use a 14500, but I'm looking for run-time and I haven't found one that actually puts out a steady 1000mAh, yet.
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