WildTrail WT90 - SBT90.2 1800m+ throw 90mm 3x 21700 With Texas_Ace driver

Tom_E · 2021-10-26T17:11:30.000Z

Ahh, knew you were someone here on BLF, wasn't sure of the name. His resistor banks turned out to be much better than depending on the flaky 7135's, specially lately. The raptor claw ones can't be relied on like we used to, plus you can't run them at 6V, even though we've tried and appear to work at lower amps.

supercrossed · 2021-10-27T00:26:42.000Z

Hello all, just got in the WT90 in thanks to the aliexpress coupon! One issue I have right now is the light doesn’t work without a space installed on the battery holder. Screwing the caddy in normally with the tailcap doesn’t put enough pressure on it to make contact I’m guessing? I used a 1.5mm thick rubber sheet between the battery caddy and tailcap and it works that way, but that can’t be normal correct?

If I press down on the battery caddy with the tailcap off, it sits flush to the body and makes contact. I’m going to guess there is a threading issue with the tailcap? Anyone have any idea?

Texas_Ace · 2021-10-27T00:34:46.000Z

Make sure that the battery tube and cap are both screwed all the way in. The tolerances are tight but it should make contact without any spacers.

supercrossed · 2021-10-27T00:38:14.000Z

I’ll try lubricating the threads as mine came unlubed. I did try my hardest to tighten it.

Texas_Ace · 2021-10-27T00:49:05.000Z

supercrossed:

I’ll try lubricating the threads as mine came unlubed. I did try my hardest to tighten it.

It should not take gorilla strength, try flipping the carrier over, one side sticks out further then the other.

ver_ivanz007 · 2021-10-27T00:56:48.000Z

I saw an issue with the USBC connector making contact with the body creating sparks. This caused intermittent operation of the light. My first solution was to place tape over it. But I decided to file down the protruding part of the USBC connector and it is now working flawlessly.

I rounded the edge of the connector using a small file.

Texas_Ace · 2021-10-27T01:02:59.000Z

Um, wow, that is not supposed to happen. The outside of the USB connector should be ground IIRC and the body of the light should also be ground. No idea why this would be happening, I was not involved with the USB charging side of things.

Tom_E · 2021-10-27T01:44:34.000Z

He's got the carrier upside down, so the bottom center post may be touching the tail housing - should touch only if the center brass screw is loose.

I dunno - can't duplicate it because the tube/tail are completely anodized - can't detect continuity anywhere.

Confirmed the USB housing is ground (Batt-).

supercrossed · 2021-10-27T02:03:19.000Z

Texas, you were correct. I had the caddy installed backwards. I read on the little instructional booklet it is able to be inserted either way and didn’t bother checking. USB-C end should be tailside for proper contact. Thank you for your help.

Texas_Ace · 2021-10-27T12:10:44.000Z

supercrossed:

Texas, you were correct. I had the caddy installed backwards. I read on the little instructional booklet it is able to be inserted either way and didn’t bother checking. USB-C end should be tailside for proper contact. Thank you for your help.

Good to know you got it working.

Yes, technically it should be able to work either way but the tolerances are so tight a few lights have issues when inserted backwards like yours.

Texas_Ace · 2021-10-27T12:12:41.000Z

Tom E:

He’s got the carrier upside down, so the bottom center post may be touching the tail housing - should touch only if the center brass screw is loose.

I dunno - can’t duplicate it because the tube/tail are completely anodized - can’t detect continuity anywhere.

Confirmed the USB housing is ground (Batt-).

Yeah, I can’t make sense of it either with mine. It should be impossible.

I sent the video and link to wildtrail and they are forwarding it to the factory to see what they can figure out.

Tom_E · 2021-10-27T13:14:14.000Z

TA - do we know if they fixed the charging circuit parasitic drain? Because in Sirstinky's review (link here), he measured only 0.23 mA with the switch LED on, which is normal.

Maybe not all pieces have the high drain?

This was my measurement of the carrier/charging circuit drain:

Texas_Ace · 2021-10-27T14:29:22.000Z

Tom E:

TA - do we know if they fixed the charging circuit parasitic drain? Because in Sirstinky’s review (link here), he measured only 0.23 mA with the switch LED on, which is normal.

Maybe not all pieces have the high drain?

This was my measurement of the carrier/charging circuit drain:

He doesn’t say how he measured the drain in the review, he might just be measuring the driver?

That said I know they were working on a fix for the charging drain but I have not gotten a clear answer as to if it has made it into the production units yet. I will see if I can get an update.

Tom_E · 2021-10-27T14:43:38.000Z

Oh could be, like I would - using the head, sit a battery on the spring, measure off the battery "-" end. Maybe he'll reply here.

pennzy · 2021-10-27T15:03:18.000Z

protechteus:

guys, I’ve recorded some footage of how does the WT90 performs on ranges from 400 to 1300m.
Powered by 3x Samsung 40T

Here it is: https://youtu.be/rL618IQi6Dc

https://youtu.be/rL618IQi6Dc

I hope ut will help!

I wonder how the receiving end of those beams looks at extreme distances?

Sirstinky · 2021-10-27T16:45:29.000Z

Texas_Ace:

Tom E:

TA - do we know if they fixed the charging circuit parasitic drain? Because in Sirstinky’s review (link here), he measured only 0.23 mA with the switch LED on, which is normal.

Maybe not all pieces have the high drain?

This was my measurement of the carrier/charging circuit drain:

He doesn’t say how he measured the drain in the review, he might just be measuring the driver?

That said I know they were working on a fix for the charging drain but I have not gotten a clear answer as to if it has made it into the production units yet. I will see if I can get an update.

That’s how I measured it. Batteries sitting in carrier. I also measured it with the carrier installed in the light to double check

JaredM · 2021-10-27T18:11:12.000Z

I’ll check mine tonight. It’s a late batch silver.

Texas_Ace · 2021-10-27T20:41:20.000Z

Sirstinky:

Texas_Ace:

Tom E:

TA - do we know if they fixed the charging circuit parasitic drain? Because in Sirstinky’s review (link here), he measured only 0.23 mA with the switch LED on, which is normal.

Maybe not all pieces have the high drain?

This was my measurement of the carrier/charging circuit drain:

He doesn’t say how he measured the drain in the review, he might just be measuring the driver?

That said I know they were working on a fix for the charging drain but I have not gotten a clear answer as to if it has made it into the production units yet. I will see if I can get an update.

That’s how I measured it. Batteries sitting in carrier. I also measured it with the carrier installed in the light to double check

Cool, guess that answers that then lol.

Marvin8 · 2021-10-27T21:03:19.000Z

Not fixed then, correct?

Texas_Ace · 2021-10-27T21:17:19.000Z

Marvin8:

Not fixed then, correct?

If he measured it like TomE did and only got 0.23ma, then that would be fixed, that is as good as I would expect.