Nexgen 750 mA sandwich in cutdown minimag

[Wutda]

How well will the nexgen 750 sandwich work with 1 x AA alkaline in a cutdown minimag? Should I use a different type of battery for this?

Thanks

[dat2zip]

The nexgen doesn't run below 1.8V. You could use the rechargable Li-ion AA 14450??. The voltage on the rechargeables ae 3.9V and would run the nexgen just fine.

For the single alkaline/NiMH battery setup you could use the Madmax lite or Madmax plus sandwiches.

Wayne

[Wutda]

Thanks for the quick respose Wayne!!!

[270winchester]

Hey Wayne:

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.

Nick

[AuroraLite]

Nick,

Just passing by, and trying to help--would you know what bin is your lux III on the sammie? That might help to determine the answer. [img]/ubbthreads/images/graemlins/smile.gif[/img]

[dat2zip]

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.

Wayne

[270winchester]

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?

Nick

[Former_Mag_User]

Actually I think it's the 14500 Li-On that is AA size.

Try Battery Space

[270winchester]

danny:

I think you are right, 14500 is the AA sized battery. THe 14720 is the half AA size that fits that cut down MM that H22A is offering right now.

Nick

[JimH]

[ QUOTE ]
270winchester said:
THe 14720 is the half AA size that fits that cut down MM that H22A is offering right now.


[/ QUOTE ]

Nick,

I think you are thinking of the 14270 not the 14720. You got all the right digits - just in the wrong order [img]/ubbthreads/images/graemlins/grin.gif[/img]

[270winchester]

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]

[JimH]