Q8, PMS SEND TO THOSE WITH ISSUES BLF soda can light

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Tom E
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giorgoskok wrote:
I had some liitokalas failing sone moths ago , out of the blue . They just turned 0.1V after one or two days after they were charged . One of them was inside a light (not a parasitic drain issue) , the other not . Still a mystery what happened...

Got any paranormal activities there? Ghosts like to suck the life out of batteries laughing

http://www.ghostvillage.com/ghostcommunity/index.php?showtopic=23816

 

Form here: https://jonimayhan.com/2013/12/17/ghosts-and-electricity/:

"We call it “battery drain.” Prior to an investigation, we always check our batteries to make sure they’re fully charged.  Sometimes though, we’ll discover that our new batteries become instantly drained the minute we walk into a haunted establishment.

Many enthusiasts feel this is a ghost’s way of powering up. They will drain the batteries, and sometimes even the energy of the investigators themselves, in order to communicate or manifest. After living in a haunted house for 13 years, I can tell you that there is some validity to this theory."

 

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Bob_McBob wrote:
I'm not sure what happened, but one of the cells was dead after the test (reading 0.8V right now and dropping). They are new flat top GAs, but I haven't had any issues with uneven drain. The light did get rather hot.

Hhmm. Might have triggered a safety cutoff. Think I heard/read even unprotected cells have some built-in safety circuitry. You might be able to "wake it up" by applying some juice to it - cheaper chargers can do it as well. Same way we can wake up a dead protected cell when the low voltage of the PC trips.

giorgoskok
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Tom E wrote:

giorgoskok wrote:
I had some liitokalas failing sone moths ago , out of the blue . They just turned 0.1V after one or two days after they were charged . One of them was inside a light (not a parasitic drain issue) , the other not . Still a mystery what happened…

Got any paranormal activities there? Ghosts like to suck the life out of batteries laughing


http://www.ghostvillage.com/ghostcommunity/index.php?showtopic=23816


 


Form here: https://jonimayhan.com/2013/12/17/ghosts-and-electricity/:


We call it “battery drain.” Prior to an investigation, we always check our batteries to make sure they’re fully charged.  Sometimes though, we’ll discover that our new batteries become instantly drained the minute we walk into a haunted establishment.


Many enthusiasts feel this is a ghost’s way of powering up. They will drain the batteries, and sometimes even the energy of the investigators themselves, in order to communicate or manifest. After living in a haunted house for 13 years, I can tell you that there is some validity to this theory.


 

Hahahhahahahahahhahahahaha insane Tom , really funny Big Smile Big Smile Big Smile

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FreeMagenta
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Sorry for repeating myself, but what should I do with faulty Q8? ( http://budgetlightforum.com/comment/1228506#comment-1228506 )? Should I go to Banggood or ask Q8 Team? Smile

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FreeMagenta wrote:
Sorry for repeating myself, but what should I do with faulty Q8? ( http://budgetlightforum.com/comment/1228506#comment-1228506 )? Should I go to Banggood or ask Q8 Team? Smile

Hmm… The Miller had been handling support issues, which gives us significantly better results than a random tier-one support agent who doesn’t know much about the product… but he has been too busy lately so I’m not sure. Is anyone else in the project able to help?

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Darn it. I somehow missed the release of the Q8's. I was in for two?

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teacher
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FreeMagenta wrote:
Sorry for repeating myself, but what should I do with faulty Q8? ( http://budgetlightforum.com/comment/1228506#comment-1228506 )? Should I go to Banggood or ask Q8 Team? Smile
What is it doing, or not doing?

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

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d_t_a
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JasonWW wrote:
BrianK wrote:
Jason, if the cells won’t put out the amps the light calls for, it will still power the light just not at maximum output, correct?

That seems to depend on the way the protection circuit is built. The protected cells d_t_a linked to obviously cuts all power if the amp draw exceeds the added protection circuits limit.

Then there are other circuits that will limit output instead of turn off. On my L6 it will draw 17A to 18A with unprotected cells, but my KeepPower protected cells will simply limit the amp draw to about 10A instead of shutting off all power.

So it really depends on the added circuits.

To answer your question, let’s say you had protected cells that only had a 2A limit then it cuts power. Four of those in the Q8 would limit the total amp draw to 8 amps. You would still be able to use the light at lower levels, but once you ramp it up to about 3000 lumen the lamp will cut off. So it’s usable, but annoying.

One thing I will say is that these protection circuits always increase the internal resistance and on a fet driver they will always pull less amperage than the same cell without the protection circuit. Assuming the amp draw does not exceed the limit of the protection circuit.

Oh yeah, if I were running protected cells in a Q8, I’d make sure and get some that are tested to do at least 5A. That should be fine for a stock light.

I’ve done more tests with my protected NCR18650Bs (from LiitoKala official store/AliExpress) — I only did in 2 samples though, so I’m not sure if there might be a difference.
It appears to turn on (at least for several seconds — not shutting down — I didn’t test for longer periods of time) at up to 5.70A. Then when reaching 6.1A it shuts off. So it appears the protection circuit trips somewhere between 5.70A-6.10A — is this an OK value?)

Made a video here using the Astrolux S41S (quad-Nichia) as test subject, and my 18650s on hand (I freshly charged all the 18650s prior to the test to get highest current draw on Turbo mode; although my test setup isn’t that good…):

https://www.youtube.com/watch?v=GK0aDtaMoFg

It appears the S41S 4xNichia can draw over 11 or 12A with a freshly charged INR18650-30Q (at least the first few seconds, fresh from charger)..

Around how much current does the BLF Q8’s 4x XP-L HD drain at Turbo mode? (Does 4xNichia219 [not sure if Astrolux S41S s 219B or 219C] drain more than 4xXP-L?)

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D_t_a, those batteries should be fine for the Q8 if you use all 4. The Q8 pulls about 15 to 16 amps total. So each cell only needs to provide 4 amps.

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FreeMagenta
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teacher wrote:
FreeMagenta wrote:
Sorry for repeating myself, but what should I do with faulty Q8? ( http://budgetlightforum.com/comment/1228506#comment-1228506 )? Should I go to Banggood or ask Q8 Team? Smile
What is it doing, or not doing?

Button light sometimes flicker and fade. Though for now it works good for 24 hours… Possibly only on voltage ~4,2? Will check it.
Rarely there is a delay between button press and mode switching.

Both are on the movies in post in quote.

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JasonWW wrote:
D_t_a, those batteries should be fine for the Q8 if you use all 4. The Q8 pulls about 15 to 16 amps total. So each cell only needs to provide 4 amps.

I have 4 protected Panasonic 18650Bs I bought from Banggood last year that I ran for hours in my 2 Q8’s without issues. But of course there’s no way to tell which protection circuit is in them.

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SIGShooter wrote:
JasonWW wrote:
D_t_a, those batteries should be fine for the Q8 if you use all 4. The Q8 pulls about 15 to 16 amps total. So each cell only needs to provide 4 amps.

I have 4 protected Panasonic 18650Bs I bought from Banggood last year that I ran for hours in my 2 Q8’s without issues. But of course there’s no way to tell which protection circuit is in them.

Yeah, buying protected cells from Banggood may or may not have the correct specs on them. They are a big company and carry many versions of batteries. You’d just have to physically test them out like D_T_A did.

About the only way to get guaranteed specs on protected cells is to buy from certain stores like Mtn Elec, IMR batteries, Liion Wholesale, Illumn and a few more. They are very choosy about the cells they buy and sale.

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FreeMagenta wrote:
teacher wrote:
FreeMagenta wrote:
Sorry for repeating myself, but what should I do with faulty Q8? ( http://budgetlightforum.com/comment/1228506#comment-1228506 )? Should I go to Banggood or ask Q8 Team? Smile
What is it doing, or not doing?

Button light sometimes flicker and fade. Though for now it works good for 24 hours… Possibly only on voltage ~4,2? Will check it.
Rarely there is a delay between button press and mode switching.

Both are on the movies in post in quote.


On the video of the delayed button pressing, is that light set to ramping or mode sets?

The switch lights look like the common issue a lot of early versions had.

Do you have any soldering ability?

I’m really not sure what to recommend. Usually we would ask The Miller, but he is not around right now. I think Texas Ace is a Q8 team member. Have you tried emailing him and posting the link to your videos? I’d try that first and take it from there.

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@FreeMagenta:
It sounds like a switchboard thing, and if you can unsolder and solder wires there are two solutions:
*wait for The Miller, he may have some arrangement with Thorfire for a replacement board (I don’t know what the status is of that)
*unsolder the board and send it (as a letter in a simple enevelope with a stamp) to me (=within EU) for repair,I could even get you a different colour leds if you like.

If you can not solder I’m afraid you will have to wait for what The Miller can or can not do for you.

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Well, due to my hand injury I will have some problems with soldering.
Surprisingly now the symptoms vanished, button leds are shining for few hours on a fully charged batteries. Will keep it for a few days then I’ll see.
Switch delay – it was probably badly callibrated thermal protection (kicked in on the light start; I didn’t see button leds blinking because…. well, the leds weren’t working Wink ) Now, with these leds ‘self-fixed’ I can see it (it is visible on the video as well if you know what to pay attention for) Smile
So I suppose I will wait a little – then maybe ask someone to switch the driverboard (one of Lexel’s maybe?… more 7135 modes would be nice; seriously it could be 4+FET instead of 1+FET – efficiency still great on 350mA/led, and much brighter usable light).

Sorry for being a little annoying Smile but I wasn’t sure.

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My BLF Q8 is working excellent, here are few pictures:







You can find more pictures here:

https://imgur.com/a/gSrkT

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Lovely sharp pics there Gregor. I don’t know anything about photography, but to me those are magazine quality if not better. Maybe even calendar quality. Not the sexiest subject matter, but at least here they are appreciated.

Beam me up!

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Thank you for your kind words.

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Hand held.

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Hand Held! Seriously?
I think I will be calling you if I ever need brain surgery.

Beam me up!

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You can do this Big Smile

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Zulumoose wrote:
Lovely sharp pics there Gregor. I don’t know anything about photography, but to me those are magazine quality if not better. Maybe even calendar quality. Not the sexiest subject matter, but at least here they are appreciated.
+1…. Very nice indeed!! Thank you. Beer . Thumbs Up

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

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teacher wrote:
Zulumoose wrote:
Lovely sharp pics there Gregor. I don't know anything about photography, but to me those are magazine quality if not better. Maybe even calendar quality. Not the sexiest subject matter, but at least here they are appreciated.
*+1*.... Very nice indeed!! Thank you. Beer . :THUMBS-UP:

++1 too! Wow!!

d_t_a
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Finally got my BLF Q8!

Opening up to place batteries, I notice the head’s ring (sorry for terminology.. the part where the battery’s + side touches) seems oily/dirty. Is this normal upon shipping? I suppose I just wipe/clean them (alcohol needed?)

I used protected NCR18650Bs since those are my only button-top 18650s for now.

I notice it’s quite heavy when loaded (I’ve thus far only handled single-18650 flashlights), but well-balanced when holding it.

Still trying to learn how to use it (as this is also my first ‘ramping’ flashlight). Testing some modes, but not all yet — it seems difficult to get to the part to cycle thru the various strobe modes. (for instance, double-click, then double-click to get to the 1st strobe mode, is there a shortcut to cycle to the next strobe mode?)

Also did a firmware check, looks like it still is NarsilM v1.0 (too bad it was not yet part of the new batch with v1.2 firmware as mentioned just a few pages back).

I remember reading a ‘checklist’ to test if there’s any issues for the BLF Q8, can’t seem to find where it is now. I’d like to check if my BLF Q8 has any issues..

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d_t_a ….. hope this helps.

  • 1. As far as the ‘dirty ring’, many shipped like that. Just wipe it down or clean it with alchol… what ever suits you.
  • 2. Not sure about short cut to strobe cause I do not use them.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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@d t a

If you are in strobes you can use single-clicks to cycle forward through the different types of strobes, but you have to be quick: If resting on a strobe longer than 1.2 s it locks in and the next single-click is OFF.

Trick for Firmware v1.0 in RAMPING
1.
You can do it in a complete sequence: 2X, 2x, 4X brings you to 10sec beacon

2.
Now you can go back via click&hold. You can go back 4 times, then comes OFF. If you go backwards you have time to do this.

It is always easier if you navigate backwards in strobes, but you should go first to the last strobe mode.

For firmware v1.2
it’s easier
1.
2x, 2x

2.
You can go endlessly backwards. There is no OFF in the back cycle.

An updated cheatsheet with more notes for beginners is under http://bit.ly/narsil-cs
Make sure you download v10 Q8

The dark stuff comes from the function test. The batteries they use to test get over time dirty and that rubs onto the ring. Clean it with alcohol and you are fine.

JasonWW
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d_t_a wrote:

Still trying to learn how to use it (as this is also my first ‘ramping’ flashlight). Testing some modes, but not all yet — it seems difficult to get to the part to cycle thru the various strobe modes. (for instance, double-click, then double-click to get to the 1st strobe mode, is there a shortcut to cycle to the next strobe mode?)

If you want to see the timing involved to get to and move through the blinkies modes, I’ve got a video here.
https://youtu.be/rdwah7HJAJA

The trick is to NOT stop on the first of the 5 modes. Stop on the 2nd or higher mode. Then you can “press and hold” to unlock and cycle backwards and forwards.

Make note of the 5 modes:
Normal strobe
Alternating strobe
Bike strobe
2 second beacon
10 second beacon

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CircaM
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Has anyone else received an email from @thorfiredirect.com?
They offered a 30% off code for the Q8 on Amazon. https://www.amazon.com/Powerful-Flashlight-Searchlight-Configurable-Professional/dp/B0773Q46D3/

Pretty cool of them to offer this code and I am very grateful that they are including a seller/shipper like Amazon.

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CircaM wrote:
Has anyone else received an email from @thorfiredirect.com?
They offered a 30% off code for the Q8 on Amazon. https://www.amazon.com/Powerful-Flashlight-Searchlight-Configurable-Professional/dp/B0773Q46D3/

Pretty cool of them to offer this code and I am very grateful that they are including a seller/shipper like Amazon.

here’s the code Coupon Code: KXCWYFBO (30% OFF) * Is it still valid?*

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CircaM wrote:
Has anyone else received an email from @thorfiredirect.com?
They offered a 30% off code for the Q8 on Amazon. https://www.amazon.com/Powerful-Flashlight-Searchlight-Configurable-Professional/dp/B0773Q46D3/

Pretty cool of them to offer this code and I am very grateful that they are including a seller/shipper like Amazon.

They posted the 30% off deal to the forum a couple days ago
ThorFire Official Deals-ONLY $50.96 for BLF Q8 on amazon USA

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