WooHoo! My MN21 LA came in today from LH and I promptly installed it in my Leef 2x18650 body with KT1. Wow that's super bright and clearly out throws the MN16 that I was running with this setup. Very white beam as all of the LA's with rechargeables that I've tried have been. I got the idea from a thread here about a week ago, i'm glad I did 500 lumens is great! :rock:
Just got my MN21!
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ICUDoc
Enlightened
Thanks, trouble: this kind of first-hand data is VERY important to me.
What kind of runtimes do you think you're getting??
And what batts are you using??
What kind of runtimes do you think you're getting??
And what batts are you using??
I'm running unprotected 18650's ,I got them from LightHound. As for runtime I'll have to get back to you on that as I'm on my first charge. I just got back from my dogs late night walk and this is without a doubt the brightest flashlight I've ever had my hands on. I lit buildings several hundred yards away with ease, the only thing that i've personally had that comes close is the MN61 M4 HOLA that I ran on 123's. Hope this helps you out 
ICUDoc
Enlightened
Thanks trouble that is very cool- I look forward to similar setup with what I've got...trouble said:I'm running unprotected 18650's ,I got them from LightHound. As for runtime I'll have to get back to you on that as I'm on my first charge. I just got back from my dogs late night walk and this is without a doubt the brightest flashlight I've ever had my hands on. I lit buildings several hundred yards away with ease, the only thing that i've personally had that comes close is the MN61 M4 HOLA that I ran on 123's. Hope this helps you out
leukos
Flashlight Enthusiast
For safety, you might want to use a higher quality 18650 cell (like LG2400) since the MN21 will be operating at the upper threshhold of the 18650's limits (around 5A).
brunt_sp
Enlightened
Where do I get these LG2400s ?leukos said:
Strauss
Flashlight Enthusiast
Damn, you are gonna make me buy a leef body and MN21 with this post :naughty: Can you tell me in more detail the difference between the MN21 and MN16? I have been thinking about upgrading from the MN16 on 2x17670's, to the MN21 on 2x18650's...I am interested in hearing your thoughts on the two set-ups in more detail. Thanks....
Outdoors Fanatic
Flashlight Enthusiast
+1brunt_sp said:
I've never seen these LG cells..
XtreMe_G
Newly Enlightened
the mn21 runs at 9 volts in the m6 right? so by running 2x18650 its running at a lower voltage, so would the brightness be slightly lower than an m6?
speederino
Enlightened
http://batteryjunction.com/li18cyce326h.html
The LG's were being used in the ROP LE because they can tolerate a 5A drain.
The LG's were being used in the ROP LE because they can tolerate a 5A drain.
rdh226
Enlightened
The MN21 is designed to run on 3 x 123A cells (actually, two sets of 3 in parallel...),XtreMe_G said:
with the knowledge that the current drain will drop the batteries's sustainable
voltage into the 7 volt range. The LiIon cells,while only 7.2 volts (nominal vs
the 9 volts nominal of the 123A cells) will sustain that 7.x volts while driving
the current-hogging MN21 bulb. Typically, the LiIons will maintain a higher drive
voltage for longer than the 123A cells, yielding longer-lasting whiter light. Or so
goes the common wisdom...
-RDH
OK I'll do my best, my original MN16x18650 setup was bright setup with a narrower beam at distance, just from what I learned last night the MN21 is a broader beam in addition to being brighter it's a little less "spotty" if you will. i'm fortunate enough to have an M3T on hand with 17670's that I transplanted the MN16 into, comparing the 2 side by side on a dark wall bears the same info, both are very white in color and both have that SF "oblong" to the beam shape. The MN16/M3T is a tighter beam while the MN21/18650 setup is seemingly much broader. I'm going to look into the different batts mentioned above, if someone could explain what exactly are the dangers with this setup? I use my light's like this specifically for my late night walks with the dogs, I live in a less than great area and use would be just a few minutes a night.Strauss said:
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LED61
Flashlight Enthusiast
The MN21 is OK with two 18650´s. As mentioned, you will maintain 7.2V longer and will thus overdrive the MN21. Primaries drive the MN21 at 6.8 volts (that´s voltage sag for you with the high drain current) when new, and drop steadily throughout the run. Many people use the M4-MN21-two 18650 combo with success.
Strauss
Flashlight Enthusiast
Thanks for your input trouble And for your uses (which are very similar to mine) I think you will be fine with your set-up. I usually top-off my cells every couple days, just to keep the light at FULL capacity and brightness.
And for your uses (which are very similar to mine) I think you will be fine with your set-up. I usually top-off my cells every couple days, just to keep the light at FULL capacity and brightness.
