just worked out all the measurements of this battery problem ( think its the batteries) for my olight m3x……
ok……
4 of the sysmax cr123 measures in total 133.6mm THE LIGHT WORKS FINE ON THESE….
2 of the tank 007 18650 measures in total 137mm THE LIGHT REFUSES TO WORK ON THESE….
2 of the xtar 18700 measures in total 138mm THE LIGHT REFUSES TO WORK ON THESE……
By refuses to work i mean…
It may come on, it may not. if it does come on if i point it downwards it goes off or if it gets knocked it goes off…… this thing is too expensive to run on primarys so i need to find some 18650 that will actually work in it.
I have found some aw 18650 2200mAH that in total would measure 134.6mm…… just 1 mm more than the primarys, should these work as im getting sick of buying batteries for this thing now!!!
Is the difference of 133.6mm and 137mm really that much?? 3.4mm and the light refuses to work??!!!
Its been back to the dealer now and they say its fine its the batteries im using, so could someone please inform me if this 3.4mm is actually the cause of all this grief!!!
yes, and i bet im thinking the same as you!!!…. im thinking of somehow modding the thing to be just a spring at the tailcap. are we thinking along the same lines??!! lol
This assumes it works with the paperclip trick. Essentially what is happening is the brass plunger is getting pushed up to far jamming the switch. The same thing happened on my marsfire stl-v2.
First you need to disassemble the switch. This is generally done by sticking needle nose pliers in the 2 holes and twisting. Separate the brass plunger part. Then you take a file and file off the top 3-4 millimeters. If you want I can take some pictures.
I would say yes. I have 8 different brands of 18650 batteries. My Roche F12 works with only one of them. Some lights are just finicky about battery length.
yes thats exactly what i was planning on doing, first though im thinking i will take the plunger out and reassemble and try the switch back on with no plunger at all…. if this works the file is coming out!!!
this is the tailcap……
Female threading in the cap is anodized which means the battery tube needs to contact the retaining ring for the switch. If your batteries, when inserted in the battery tube all the way, do not sit below the lip of the battery tube you will not get the light to work no matter what you do with the brass plunger.
yes but i can feel that when the tailcap gets srewed on its that pertruding plunger thats wanting to stop it going all the way home… if i slightly unscrew the extension tube the tail cap goes on all the way so surely if i take a bit off the plunger its going to give me a couple more mm to play with??
ady, it could be a comibination of things. First of all if the battery you're using is too long, nothing else is going to help, and if your measurements are correct, they are. Try to get ahold of an 18650 that is actually close to 65mm long. I just ran down to the office and checked the length of a few:
In my N-Light ST50, the Trustfire and Xtar will not work - the .5mm makes a difference. All other cells I have work in it. You might find that the battery length and/or removing the tailcap plunger is all you need to fix it. As JMac mentioned, too long and the unanodized portion of the body tube is not seating properly, or the spring is getting crushed.
i think im going to take the plunger out first…. if this doesnt work ill have to buy MORE BATTERIES!!! i dont know anyone with any so ill have to get them…. the aw at 67.3mm are the shortest i can find. im really hoping its that plunger as its been bugging me for ages with this thing now!!!
