I have checked and double checked these batteries several times in my M170, and these are my findings:
Panasonic NCR 18650B 3400mAh Protected - Too Long
Panasonic NCR 18650A 3100mAh Unprotected(Buttontop) - Works
Sanyo UR18650ZT 18650 2800mAh Protected - Too Long
Sanyo UR18650FM 18650 2600mAh Unprotected(Buttontop) - Works
The unprotected Buttontop cells work without need of the adaptor. I don’t have four flattops to test.
Could you please check the resistance between the inner ring and outer ring on the battery side of the head?
Mine measures ~870ohms.
I'm trying to find signs of a defective driver.
Also, my reflector just falls out when unscrewing the lens bezel.
guys, can you make photos like below and post it here for compare how deeply sit there driver and connection ring around driver:
for understand why in yours RM170’s not fits anything more than 67-68mm. tomorrow I will get from Fasttech protected Panasonic 3400, they almost 70mm long and I’m sure they will fit to my Roche, easily. need understand where and why the difference…
Sorry. I don’t know how to do that…I’m resistance impaired. If a multi meter is required, I have a cheap $9 piece of s**t one that I wouldn’t put too much faith in. I can try if you want, but you will have to tell me what to do. …a pic of MM.
Stan...sorry, just a couple quick ipad shots.
thank you, and, it looks very similar… except on my driver no any numbers like on yours. about how deeply sitting driver in the head, contact ring(+) for batteries exactly 10mm deep in head, ring around the driver(-) like 8.5-9mm deep… please check your if possible. I don’t think that in body/springs anything different, so where the reason for not fit long batteries?
and there have other easy way to make possible to fit long batteries than change the springs - just put in/within plate with springs and body before screwing it back, small shims/spacers - 1-1.5mm fat, and this will add additional 1-1.5mm for fitting your long batteries. but mine 69.5 and tested ~71mm(68.7+2.18) works fine without this trick… strange… any ideas? 
My measurements are the same as yours.
I’m not worried. It runs fine with unprotected cells.
I use good cells and check them regularly, so I’m not expecting any problem. I’ll never run it down enough to see how the low voltage protection works, hopefully.
Mine works fine with protected Xtar 3100mAh’s…
There were probabally changes and adjustments made to this light as it was being produced. CNQG were the first to get it. Intl-Outdoor waited for a driver issue to be cleared up before they carried it. Now FastTech has it.
I think Roche is still tinkering with it. Where you got it and when may decide what cells it likes. I see CNQG has an option for 3 mode hi-med-low instead of stepless.
Mine came from Intl-Outdoor.
got today set of protected Panasonics 3400mAh from Fasttech, and they fit and works in my RM170 without any tricks
Reckon the included round spring is for in place where that chunk magnet is not in use, to help support the end plate I suppose.
thanks for that review. man, if i got that light, id be pretty disapointed even if it did work properly. it looks more dim than the king. for the price, id expect to be much brighter than the king
Bumped for updated pics for Roche M170 NW from CNQG/FF.
6th March 2013.
Beamshots/Floodshots/Throwshots coming soon.
below some beamshots of Roche M170 and Skyray King, CW & NW versions -
bigger beamshots are SRK; and as you can see, RM170 more brighter and wins. by the way, 3 mode version of RM170 is better - no any PWM in lowest mode(as well as unpleasant abuzz sound from driver too).
Great beamshots. I think I can tell which ones are which, but if you labeled them below each picture that would help.
In the bottom two pictures, is it RM170 NW, SRK NW, RM170 CW, and SRK CW?
yes, exactly large beamshots are SRK
Which Roche do you prefer. The CW or NW?
It looks like the NW doesn’t give up much if any brightness to the CW? Is that true or is it just the way it seams in the pictures?
I prefer NW version colour, but it’s just my opinion… as well as 3 mode version - it’s very easy to use, %100-40-5, turns on/off within 0.5 second only, switch is more springy. but overall both versions very bright, it’s just camera cannot take good pictures at night, but anyway did good job for compare RM170 and SRK. below the brightest picture that was done:
Thanks very much for the review! Frontpage’d and Sticky’d.
Hello! Does anybody know where to buy spare parts for Roche m170 flashlight? Thank you.