TN36-UT not turning on

Cronos · 2018-10-04T13:02:53.000Z

Got a TN36-UT in the mail today. Using Keeppower 3500mAh (P1835J) batteries charged to ~4.2v. These were the recommended batteries from the supplier I bought it from.

Worked initially. Although sometimes the button seemed to not work unless I pressed it harder. It also seemed like it would skip modes every so often when I was cycling through low/med/high. After 10 minutes of use, the light just stopped working. It won’t turn on no matter how I press the button. The blue LED light on the button doesn’t work either (can’t remember if it ever did).

I checked various things:

- Batteries still had plenty of charge

- Batteries inserted correctly

- Spinning around the reversible battery holder

- Manually pressing the battery holder onto the plate of the light

- Tightening the thread that connects the two pieces

- Loosening the thread that connects the two pieces

Checking to see if I accidentally triggered an electronic lockout (there is none)

Seems like it’s just faulty and I should get it replaced. Anyone with any suggestions?

Theodore41 · 2018-10-04T13:32:17.000Z

Is it a new,or a used one?Because I know that it is an older model.I have the TN36 2017 model and it is very good.

Cronos · 2018-10-04T13:33:14.000Z

It is new. The shop I bought it from doesn’t stock the 2017 version yet.

Newlumen · 2018-10-04T14:21:35.000Z

Most likely it’s not making contact on the positive end of the battery carrier…

Cronos · 2018-10-04T14:25:38.000Z

I can’t imagine why. Seems to be perfectly in tact. Batteries are also a fairly tight fit. It also doesn’t explain why it would suddenly stop working mid use.

Newlumen · 2018-10-04T14:37:54.000Z

You can remove the screws by the head of the flashlight… then pull the spring forward…

I think the spring is not making contact.

Cronos · 2018-10-04T14:40:10.000Z

What do you mean by pull the spring forward? I did have a look by removing the screws earlier. The piece of metal sitting on top of the spring seems to be making contact, as it springs back up after I depress it.

Theodore41 · 2018-10-04T14:47:20.000Z

Is there a warranty?

Newlumen · 2018-10-05T02:47:30.000Z

There is a spring underneath… you need to pull it forward, so it will make contact.

Cronos · 2018-10-05T12:38:50.000Z

The spring is already making contact. You can’t screw the back plate on without it depressing the spring. I push the center piece of metal and it bounces back, because the spring is there.

Update: I have returned the light to the store. Hopefully they will send out a new one that works.