I have a question. Since the Li-IOns start at 4.2v off the charger, and I remember seeing soemthign that says the LED goes into direct drive over a certain voltage, would I be damaging the LED's useful life byh using a Li-ion battery? I would like to use the NexGen 750 in a MMM Mag witha 14720 battery but am concerned on the effect it may have on the life span of the LED.
The internal body diode in the IC helps buffer the LED from a true hard direct drive connection. A true battery to LED could generate quite a bit of current to the LED. The additional drop across or through the IC softens that a bit. A Lux3 J bin won't draw more than ~1.2A or so in DD mode. Your actual DD might vary from this.
Hey Wayne: THanks. I'll just not use the Li-Ion fresh off the charger and wait for a while before I use it.
Auroralite: It's the garden variety TWOJ. I saw a bunch of threads in this forum where people said that they used their NexGen 750, or even 500 with Li-ion with no problem, but then again the problem doesn't usuallyu surface until an extended period of usage and not very apparent without a lux meter. I might get a lux reading meter and run the heck out of the Li-ion setup and see the difference for my self. [img]/ubbthreads/images/graemlins/wink.gif[/img] anyone know a good place to get one?
Okay Jim, you just like to make the rest of us look dumb don;t ya? [img]/ubbthreads/images/graemlins/drunk.gif[/img]
You're right. I mean, I just wanted to see you knew of course....ahem...and good job passing the test *looking around nervously hope it'll blow over soon* [img]/ubbthreads/images/graemlins/grin.gif[/img]