djQUAN
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Do you have a known good quality cell? It's possible that a cell with high impedance can cause drivers to blink when the voltage drops and triggers undervoltage protection.
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Blinking problem
- Thread starter DoctorEvil
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Yea but does that have a pattern? Because my blinking is definitely a pattern. Also I am confident it's not the batt because I pulled it all apart and hooked it up batt to driver to diode(no case no switch) and it was solid. There are two places the weak connection are possible, one is the switch since its from a cheap 2$ flashlight, and where the driver contact the casing, it just kinda brushes agains the case, I'm going to solder it on later, will update today
djQUAN
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Ah there you go, we can rule out the battery. It's probably a loose connection then as mentioned before.
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Batteries right? Your using 2? Also which driver are you using?
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It's a boost driver I believe it's a one battery system and its set at 1.8amps output the battery's actual reading is 3.4amps plus the 4.2-3.7v range I have two to use because when I got the batteries it came in a pair of two
djQUAN
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3.4A draw from a single 18650? that's a little high.
You'd need beefy switches and a really good connection to the case/host for it to work properly.
You'd need beefy switches and a really good connection to the case/host for it to work properly.
Zeebit
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The mcclicky switches should be able to handle that much current.
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So update, improving connection between driver and casing helped a lot. As for pics give me a bit as I am steel wooling the exterior today.
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Okay bad news I fear something has happened but am unsure as to what. It is now solid dim. It also doesn't seem to want to focus and raw output has gone from ellipse to dim circle. What on earth happened?
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Sounds like it went led from being over stressed. Too much power or not enough cooling tends to be responsible. Usually the former.
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Would it happen to be the constant flickering of connections that had been occurring for the past several days?
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Probably might've contributed. Diodes tend to flicker if their power is unstable, or if they are too hot. What driver are you using? And are you using a single 18650? Is it regulated or anything? Pictures would be extremely helpful too. Test your driver too, make sure it's providing appropriate voltage and current. Laser diodes are sensitive and they tend to die even if you so much as look at them wrong... 
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The driver was from a x-boost v7 16.8mm round adjustable output, preset to 1.8amps
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Maybe check the driver output with a test load?
R.I.P.
-Matt
R.I.P.
-Matt
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I don't suppose there is a way to fix this...
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Happy new year everyone at lpf!
