BLF Kronos X6/X5 GB - Group Buy now closed.

4.17v and 4.18v 02/10/2016 - 23:08
4.16v and 4.17v 02/11/2016 - 20:24
4.11v and 4.17v 02/13/2016 - 19:47
4.088v and 4.16v 02/14/2016 - 18:5
4.043v and 4.16v 02/16/2016 - 22:06
3.977v and 4.16v 02/20/2016 - 11:40
3.938v and 4.15v 02/22/2016 - 20:16
3.908v and 4.15v 02/24/2016 - 21:26
3.859v and 4.15v 02/27/2016 - 22:49
3.820v and 4.15v 02/29/2016 - 22:35
3.789v and 4.15v 03/03/2016 - 22:25
3.774v and 4.14v 03/06/2016 - 22:30
3.753v and 4.14v 03/11/2016 - 22:55
3.670v and 4.14v 03/19/2016 - 15:47
3.633v and 4.13v 03/22/2016 - 22:39
3.576v and 4.13v 03/28/2016 - 23:21
3.451v and 4.13v 04/05/2016 - 21:31
3.042v and 4.12v 04/11/2016 - 21:14

And that’s it I’m done. I think I’ll carry this light tomorrow.

And from ToyKeepers graphing script.

Thank you Joat!

I can’t imagine not playing with my X5 for that long. Thanks for providing us with great information Joat!

Awesome. It looks like the estimate of about two months was pretty close. And I’ve noticed on mine that the tail starts growing visibly dimmer when the battery is ready to be recharged. That quick drop at the end is how I know it’s time.

When I pulled the cell the tail cap looked very dim.

Compare that graph to HJK’s discharge graph for this cell

Wow. Good test
2 months is respectable, can’t imagine having these lights and not using them for so long :smiley:

Thanks, Joat. Great information, it also helps me decide on the resistor values of my own lighted tail mods :slight_smile:

That would be nice, but they’re branded with Astrolux, not BLF/Kronos, and they do not come in a nice box. I think I’ll keep pestering Banggood till they relent.

Good Luck

I’d like to thank Neal from Banggood, for sending me a new code. My trust in Banggood stays true, at least for now.

good to hear :slight_smile:

I was here in post 7018 about an Astrolux SC (copper X5 clone) that stepped down in all modes and did other strange things. The problem was solved after a bridged connection on the driver was disconnected.

I now have a new Astrolux S3 (aluminum X5 clone) that is stepping down in all modes after 9 seconds. If the light has been resting, it takes 30 seconds for the first stepdown, then 9 seconds for subsequent ones. This occurs in ALL modes, not just turbo. Other functions work as expected.

  • UI is set to four modes, no moon, no memory, L to H, medium presses on.
  • With thermal management disabled, there are no stepdowns in any modes.
  • After a factory reset of settings, stepdowns occur again.

Unfortunately, I only did a quick check of the light’s functionality out of the box before removing the bleeder resistor and tailcap LED and resistor. I’m confident that I didn’t cause damage while I was in there.

Any ideas? I have looked at the driver board again and didn’t see anything obvious.

So it works in all modes and can enter and exit program mode but is stepping down too quickly? Connection problem? Weak switch? Wrong value on one of the voltage divider resistors?

G'Day goshdogit,

From memory, another member had the same problem (posted somewhere in this thread), & it was fixed by setting a new value/limit for the Thermal Calibration within configuration.

Best Regards,

George

Yes, the light functions normally besides stepping down in ALL modes after 9 seconds.

Retaining rings are tight. Smacking/shaking the light causes no issues. I tried the tailcap from the copper X5 clone and got the same results. I looked at the driver again and it has the same 4.7k and 22k SMD resistors as the copper light.

While attempting to set a new thermal protection value, the light seemed dim and did not get warm after 2 minutes.

I pulled the cell and it’s at 2.8V. It was at 3.6V two days ago. :person_facepalming: I hadn’t touched the light since then.

Remember, I had removed the bleeder resistor from the driver before verifying that this light worked properly. I’m suspicious that I may have caused this issue, but I don’t see a bridge at the bleeder resistor’s pads and my DMM shows no continuity between them.

I’ll swap in a Mountain Electronics driver with Bistro UI when my latest order arrives, and get photos of the questionable driver when I remove it.

Thank you both for your suggestions. I’ll report back in a few days.

Tried to remove the driver retaining ring on my X6 yesterday, I can get it loose and it freely rotates 2/3 times before it binds up and won’t undo any further.

Do I have to remove anything else in order to get driver retaining ring out? :question:

Thanks in advance

Nope, there’s probably just a tiny chunk of aluminum, brass, or PCB caught in the threads. I had that problem with an X6.

Working the ring back and forth might help, otherwise you might just need to plow through the the obstruction. :stuck_out_tongue:

There is no need to remove anything else in order to get the driver retainer ring out. Try re-tightening it before trying again.

Also run the light on turbo so as to get it hot, & then try removing the driver retainer ring.

Best Regards,

George

I have the stepdown in all modes too, in at least two of my Kronos lights. Why would a wrong stepdown temperature cause stepdown in all modes instead of just turbo??
I solved it by just un-engaging the turbo-timer. It was not my favorite feature anyway.