Wurkkos TS21 tear down

I wonder if it is manufacturing inconsistencies or perhaps the intended fix worked out being worse than the original problem. I have one of the first Andruil 2 units with the sst-20. IIRC, the drain was similar to what was noted by Tom. Not a problem for me when set on low and I don’t mind the very low light level at all. However, that level of drain is no where near 3 mA! Still technically unacceptable level of drain but practically, for me at least, not a problem in any way. I just charge my light around the first of the month (except for when I was playing with the thermal regulation in the cold weather and running it on turbo for extended periods). A month’s worth of parasitic drain, and whatever my typical usage is, has yet to exceed about half the capacity. As I am typing this I pulled it from my pocket. Half way into the month the voltage check is still at 4V. Granted the days are long these days and I don’t use it all that much but it does get regular use and stays in my pocket with no physical or switch lock out.

What’s extreme?

Expressing disappointment that a manufacturer has been hesitant to fix a light with a acknowledged deficiencies, if not flaws, yet continues to manufacture and sell it? The abnormally high drain is not the only one.

Or simply having found other things that pique my interest more?

I’ve got all the lights I need, but the bar for something I’d want is higher. And “budget” or not, that does not allay the need for standards, if only of a personal nature.

Even if many are willing to accept playing beta testers with saleable products, not uncommon for this market, passes shouldn’t be given for not providing patches. The crowd that hangs out here is not the only one such products are sold to.

Mine has the same issue

•12,97 to 13,97 mA on high
• 0,17 to 0,50 mA on low
• 0,11 to 0,44 mA in off

The numbers are not stable.
You can see a little cycle from the first number to the last number like a jump and back
For measure I use a Fluke 179. I know I don’t have uA but in mA I think is precise
Very bad news for this light

My TS21 is probably 3 months old and luckily I don’t have any problem with parasitic drain.
On high setting the current draw read .9 micro amps and on the the other switch light settings my meter read 0.
I probably put a fresh 21700 in about a month ago and I got 4.09v on the meter. Which seems about correct as it only gets used a short time on work days.

I am curious as to whether it is a problem with the driver or the software.
Anduril does get updates and manufacturers also use different parts lots so it could be either one.

I’m leaning toward inconsistencies. Several reports ranging from “meh not so good” <300uA to (in my case) “pretty much unusable” 3+mA. I’ve heard nothing back from Wurkkos and it sounds like nobody else has either. I’ll not be purchasing Sofirn / Wurkkos for a while in case the same issues creep into other lights. And I’m no hater. I have several Sofirn / Wurkkos lights and really like them.

Is the problem with the Anduil 1 or Andruil 2 version or both?

In my case is Anduril 2

The drain jumps around on the meter. There is a bug causing it and probably related to the button light jumping around bug.

Mine is the 219C Anduril 2 version as well.

That’s not a firmware bug. The boost regulator for the powerbank function pulses regularly because it has to check if there is a device connected.

Thank you for explaining this…but…why it has to check if a device is connected?
In this mode it drain battery more fast but I switch off the led button…I don’t like color

Maybe not only the powerbank controller. Anduril wakes up several times a second to check the battery voltage. That will increase the power consumption as well. I’ll take a measurement (of a different anduril flashlight) later.

Here are some measurements of an Emisar D4v2 Tintramping, done with a 100 Ohm shunt resistor.

Aux LEDs off:

Aux and switch LEDs blinking:

Does anyone knows if the magnet can be removed from the tail cap of this light ? I don’t want a magnet near my credit cards :slight_smile: .

It seems to be glued but it looks like it would be possible to remove. This is below the spring:

It shares threads with sofirn sp35 and probably other sofirn/wurkkos lights as well.

Great. Thanks for this info!

FWIW, the wide regions of increased current are fixed now. I didn’t have it properly going into the ADC sleep mode during measurements, so it stayed on way longer than it should while checking the battery.

Overall, the fix seems to reduce average standby current by about 15 or 20 uA. With aux LEDs on low, that means a drop from about 100 uA to 80 or 85 uA.

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I’ll check it again once I’m home.

Here’s a measurement of the updated version. Same setup.

Detail of wake-up with ADC measurement (left side) and regular wake-up.

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Thanks! It looks exactly how I thought it would… and it’s good to see the fix worked as intended.

It helps to use the correct sleep mode during an ADC measurement. :sweat_smile: