Received BTU Shocker from Ric today. It doesn't work. Need help please.

LED Flashlights – General Info 18650 Flashlights
1

Hi guys,

Today finally I recieved long awaited BTU Shocker from Ric.
I put Sanyos 2600mAH unprotected in it.
After I turned it on, the flashlight worked for about 5 minutes or so and then blinked for a couple of times and turned off. Now when I turn it on it doesn’t work. The leds are very slightly illuminated (as slightly as for example some indicating led on the device like TV etc).
I tried Sanyos 2600mAH unprotected, Sanyos 2600mAH protected, Trustfire flames 2400 protected, and it doesnt work with any of them.

Guys, give me suggestions what to do now? Does anybody had the same issue? I’m very disappointed…
Thanks.

2

Return it

3

Use a process of elimination. Clean any contact areas between parts that carry current. Assemble light, turn it on and shake it. Does the light flicker? Check that everything is tight and nothing rattles.

If the LED still glows, however faintly, it is unlikely to be the problem.

Tail switch problem? It seems to be on the carrier. Have any magnets? Take cells out of the carrier, connect with magnets, make a circuit to the head of the light. Does it light up?

4

I think it is a driver issue. I checked the tail switch and it seems to work well.
Returning the flashlight I would have to pay return shipping fee. I think it could be up to a half cost of the whole flashlight…

I wrote to Ric about this issue, I hope he will answer soon and help to resolve the problem.

5

You could try cleaning the contacts, anything that flows negative but I am doubtful that is the cause.
I’d just leave it alone and arrange a return.

6

What makes you think it is the driver? I'm not saying it isn't, just wondering how you came to that conclusion. Were you able provide power to the head without the battery carrier/switch assembly in the circuit? If so, what was the result?

7

Yes, I checked the contacts, they seem to be tight everywhere.
Now I wait for Rics answer.

8

Yes, I used alligator clips and managed to provide power right from the batteries to the driver. The result is just the same - when turned on, leads glow very slightly and nothing more. No reaction on mode change etc.

9

Bummer! One further straw to grasp at: Have you tested for the driver having a poor ground connection to the head? If not, using a DMM, test for continuity/low resistance between the driver ground ring and the head.

Edit: If you can identify the driver as the problem he may be willing to send you another driver.

10

Could anyone measure (or tell) what is the normal resistance of this resistor? (marked with the red circle)
I measured mine and it shows around 0.7-14 mOhm. I’m afraid its dead.
Thanks.

11

I have no idea how to do it,man. Because the bootom (inner) ring is covered and tightened by the plate.

12

I don't think that part is a resistor. In that photo, the three parts below and to the right of your red circle appear to be resistors. Hard to say what the circled part is, but it might be a diode.

13

Yes looks like is a diode. I measured in another direction and it shows different values.

14

How many of the Leds are glowing ?

15

33696933 - all the three leds are glowing with the same power.

16

then it’s driver…

17

LED test: apply a voltage of around 3.6V to the LED’s. If they’re bright, they’re good. If they faintly glow or don’t glow at all, they’re burnt out. The glow, I’ve seen with LED’s I killed with too high of a current.

18

RIC is a decent guy, who will get it sorted, I expect he’s just very busy at the moment, just keep emailing.
tabs

19

Fully charge the batteries before you use them. And use your Sanyos.
Another guy claiming his Shocker was broken just had low batteries.

20

Really don’t want to dissasemble it that much yet. But I got the idea, thanks. I just think how it is possible to burn the led with the current that provides one battery (3 batteries - 3 leds, 1 battery current for each led, right?).