Sofirn SP10V3 Defective on First Day

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WL27
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Sofirn SP10V3 Defective on First Day

Just got the Sofirn Sp10v3 yesterday, took it out for a walk had it on maybe 10-15 mins. With both the Sofirn 14500 battery and an alkaline AA when i walked back home i had the 14500 in it, i used it on the walk back home mainly on high mode and sometimes on turbo so it got a bit warm, but not too much. So when i arrived home the sp10v3 was warm i just thought thats normal my other lights also get warm and put it on the cupboard. the light was off of course.. then i ate something, 45minutes later i wanted to look at the flashlight again, and it didnt turned on, i noticed it was still pretty warm but the light was off and was not turning on.. i swapped the 14500 battery for the alkaline AA i used before outdoor on the walk and it also didnt turned on.. i tried a brand new AA battery, and it still did not turn on. Then i charged the 14500 battery to the max and put it in the sp10v3 and it turned on and it worked normally, i turned it off and left it on the cupboard awhile, and again the whole body got pretty warm but it was off ! Its also still not working with an AA like it worked before on the walk outside. Does anynone know what happened why its not working correctly anymore ?

What should i do now ? Open a Dispute on Aliexpress or write Sofirn just a message. im unfamiliar with this and i dont know if its considered as rude if i directly open a dispute ?

What a shame.. overall i really liked this flashlight, i wanted to give it my grandma as a gift, she wanted to use it with AA batterys…

I took some photos too..

Size Comparison

Comparison with IF25

WL27
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I forgot to add : inside the battery tube it smells a bit weird, i dont know if thats the smell of the grease or fat from the threads or something else.. but no other flashlight from me has that smell inside the battery tube.

Lumen9000
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The warmth you’re talking about, sound like a shortage.. is anything passing current? Battery with damaged wrapping?

Nooner
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I had the same issue.

AA and NIMH never worked and 14500 ran hot.

I left the light alone with a 14500 in it and when I went to use it a few hours later it wouldn’t turn on. When I checked the battery voltage it had drained to 1.0V while off.

Same burning smell.

I took everything apart (Lots of glue in the assembly. The most I’ve seen in a Sofirn light). Discovered a burned out component on the board. This is where my knowledge runs out. I dont know what the component is.

I reached out to Beamax store on aliexpress where I purchased it. Showed them pictures. They agreed to send me a new driver.

I had assumed I must have a rare anomaly. It seems this could be a bigger issue.

Lumen9000
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Some huuuge parasitic drain there!

Nooner
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I was really excited to get this light with a UI that wasnt long click for off. But so far not impressed.

Another minor greivance is the new tailcap design. It is less stable when tail standing. There is no tail button so there is no reason to have this style tailcap.

I originally wasn’t going to post about my experience. Sofirn is very good to this forum so I didn’t want to tarnish their reputation if the light I ordered was just a fluke defect. But if others are having the problem I suppose it’s a public service to let people know.



WL27
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Nooner wrote:
I had the same issue.

AA and NIMH never worked and 14500 ran hot.

I left the light alone with a 14500 in it and when I went to use it a few hours later it wouldn’t turn on. When I checked the battery voltage it had drained to 1.0V while off.

Same burning smell.

I took everything apart (Lots of glue in the assembly. The most I’ve seen in a Sofirn light). Discovered a burned out component on the board. This is where my knowledge runs out. I dont know what the component is.

I reached out to Beamax store on aliexpress where I purchased it. Showed them pictures. They agreed to send me a new driver.

I had assumed I must have a rare anomaly. It seems this could be a bigger issue.

!https://i.imgur.com/DPJZfib.jpg!

Hm interesting thats unfortunate. So im not alone with this problem. Thanks for the information ! I dont know much about all the technical things..

@Lumen9000 all batterys were ok

WL27
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Nooner wrote:
I was really excited to get this light with a UI that wasnt long click for off. But so far not impressed.

Another minor greivance is the new tailcap design. It is less stable when tail standing. There is no tail button so there is no reason to have this style tailcap.

I originally wasn’t going to post about my experience. Sofirn is very good to this forum so I didn’t want to tarnish their reputation if the light I ordered was just a fluke defect. But if others are having the problem I suppose it’s a public service to let people know.



!https://i.imgur.com/7IkrJVn.jpg!

Yes the tailstand is very unstable. While the sp10v3 was still working correctly i would say only that and no battery level indicator were negative, everything else was ok in my opinion (while it was still working) does the other sp10 versions have some sort of a battery level indicator ?

jasontheguitarist
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Call out the issues. Sofirn might actually read it and change stuff. Hopefully any issues in the V3 aren’t also in the SP10 Pro when it comes out.

kennybobby
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It looks like the same transistor failed in both cases, which makes me think a design error or the wrong part was selected for the task.

It could have shorted internally and provided a current drain path to deplete the cell (and get hot in the process).

Now i used to think that i was cool,
drivin' around on fossil fuel,
until i saw what i was doin',
was drivin' down the road to ruin. --JT

Funtastic
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Excellent reporting. I’ll skip this model and stock the Convoy T2 instead. Loved the SP10S though

Such a shame

Piercing The Darkness YouTube channel – https://www.youtube.com/c/PiercingTheDarkness

TIFisher
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Noticed the same behavior in my sample. Started at 22 degrees C, went to 28 deg. C in about 25 minutes.

jasontheguitarist
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The SP10S was a good host and driver with a crap UI. The V3 should have been the same host and driver with new firmware to update the UI.

kennybobby
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Does anyone have a schematic or circuit details of the horizontal board to which the switch board (vertical) is soldered? To identify that part of the circuit and the part number of the device that burns up.

If it is a FET, then it needs a pull-down to ensure that it shuts off; FETs can remain ON even with the gate signal removed due to the capacitance in the FET, that’s why they need to be driven to the OFF state and not just left floating.

If someone wants to send me a board then i will trace it out and send it back repaired.

Now i used to think that i was cool,
drivin' around on fossil fuel,
until i saw what i was doin',
was drivin' down the road to ruin. --JT

Nooner
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TIFisher does your sample work with both AA and 14500?
Mine never worked with AA.

100% agree with you jasontheguitarist. The UI was the only thing that needed to change.

I will say that the beam on the V3 is slightly improved over previous models. It’s a bit bigger spot with a more blended spill. Ofcourse this is just my opinion/preference in a light like this.

roostre
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TIFisher wrote:
Noticed the same behavior in my sample. Started at 22 degrees C, went to 28 deg. C in about 25 minutes.

Was the light OFF or ON when the temperature increased by 6° Celsius (~11° Fahrenheit) in ~25 minutes and what level of brightness was selected if the light was ON?

 

I have one SP10V3 from AmazonUS (shipped from a warehouse in the State of Illinois) and another SP10V3 arriving today from AmazonUS (shipped from a warehouse in the State of Washington).

How many flashlights does a "real man" need?

None, real men are not afraid of the dark.

TIFisher
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Quote:
TIFisher does your sample work with both AA and 14500? Mine never worked with AA.

No. Won’t turn on with NIMH either.

Quote:
Was the light OFF or ON when the temperature increased by 6° Celsius (~11° Fahrenheit) in ~25 minutes and what level of brightness was selected if the light was ON?

This behavior manifests while the light is OFF, tail cap tightened, sitting idle.

WL27
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I bought the Sp10v3 on the Sofirn Official Shop on Aliexpress. I opened a dispute and now they replied :

“First, check that the insulating sheet placed on the battery needs to be removed to conduct normal conduction. Second, the test battery can be used normally (you can use other brands of batteries). Use a wire to test whether it can light up. If it does, it means that the tail switch can’t conduct electricity. Just send a switch. Fourth, use alcohol to clean the exposed areas on both ends of the barrel, including the exposed areas of the steps inside the tail cover, and then try again. Try to light up”

What should i write them now ? Should i just give them a link to this thread ?

Funtastic
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Take a video of it not working with an AA battery and say it’s a faulty driver.

You could message the Sofirn member above and they should then be able to get in contact with the AliExpress team, but only if you don’t get anywhere with the video

Piercing The Darkness YouTube channel – https://www.youtube.com/c/PiercingTheDarkness

WL27
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Funtastic wrote:
Take a video of it not working with an AA battery and say it’s a faulty driver.

You could message the Sofirn member above and they should then be able to get in contact with the AliExpress team, but only if you don’t get anywhere with the video

I attached a video when opened the dispute. Ok Thanks, i message them.

Tumbleweed48
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jasontheguitarist wrote:
The SP10S was a good host and driver with a crap UI. The V3 should have been the same host and driver with new firmware to update the UI.

Just this.
I don’t understand why manufacturers don’t simply refine their products instead of starting from scratch and screwing up from a different direction.

TheFlashlightGuy
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FWIW I ordered this light from Amazon a few days ago. So far I have not had any problems using the included cell.

Bort
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Funtastic wrote:
Excellent reporting. I’ll skip this model and stock the Convoy T2 instead. Loved the SP10S though

Such a shame


Indeed, i was looking at getting one but now am going to stay away.
I waited too long to upgrade my lights, the 4AA is discontinued, this 1AA is defective Sad

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Funtastic
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Bort wrote:
I waited too long to upgrade my lights, the 4AA is discontinued, this 1AA is defective Sad

The SF11 4x AA was a bad design since it had a floating shelf. The only thing connecting the shelf to the body was two screws, all around the sides aren’t touching anything

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Funtastic wrote:
Bort wrote:
I waited too long to upgrade my lights, the 4AA is discontinued, this 1AA is defective Sad

The SF11 4x AA was a bad design since it had a floating shelf. The only thing connecting the shelf to the body was two screws, all around the sides aren’t touching anything


Egads. So perhaps better i never got one.
Are there any other 4AA lights you can recommend?

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Funtastic
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I purchased 30pcs to sell, but seems to be okay since it’s only low output.

That’s the only 4x AA model I’ve used, everything else is lithium

Piercing The Darkness YouTube channel – https://www.youtube.com/c/PiercingTheDarkness

Bort
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Funtastic wrote:
I purchased 30pcs to sell, but seems to be okay since it’s only low output.

That’s the only 4x AA model I’ve used, everything else is lithium


Supposed to be 1050 lumens, about 10W of power so still a fair bit.

BTW Sofirn’s site currently says

Quote:
Buy $2,000.00 more and save $524.93

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Funtastic
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Bort wrote:
Supposed to be 1050 lumens, about 10W of power so still a fair bit.

I put thermal grease right around the sides and didn’t heat up anymore than without it, so doesn’t seem to be an issue. It has a 3 minute stepdown to High which would help. I measured 1000 lumens, Sofirn’s early models were so accurate on the ratings.

Sounds like a great deal lol

Piercing The Darkness YouTube channel – https://www.youtube.com/c/PiercingTheDarkness

Bort
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Funtastic wrote:
Bort wrote:
Supposed to be 1050 lumens, about 10W of power so still a fair bit.

I put thermal grease right around the sides and didn’t heat up anymore than without it, so doesn’t seem to be an issue. It has a 3 minute stepdown to High which would help. I measured 1000 lumens, Sofirn’s early models were so accurate on the ratings.

Sounds like a great deal lol


I have an old light with a separate pill that is press fit into place with a lot more contact than two screws, when tested it had a lot of lumen sag becasue of the poor contact. Thermal paste also did not help much. So i find it hard to believe that two screws is good enough and would not be improved by not being a solid one piece setup.

And that is a weird offer from sofirn. You may be the about only one who might take advantage of it since you sell flashlights.

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

LEDlove
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@WL27
I read your post not long after buying this light and was initially relieved at not having the same problem, that is until last night which is exactly one week since getting it in the mail. And you know what? My experience is 100% the same as you described. The light got hot with the 14500 battery while off, so I took it out for the night. This morning, I put the battery back in and left the light off to see if the light would heat up. It did! Then I figured it might be safe to just use the light with alkalines and NiMH batteries, but discovered that they no longer work. The lithium 14500 still works, but I can’t leave it in the light without it draining itself and making the light hot, not to mention making me fearful of it exploding (as lithiums have been known to do sometimes) and burn my house down.

This is my first lithium powered light, and now I’m more leery of them than ever. I guess I’ll have to try returning it to Amazon since I clearly can’t use it anymore. But I have to say that when it worked, it was ridiculously bright in turbo mode! Very impressive that way. At the same time, I have to point out that finding the button in the dark by feeling for it was very frustrating. It’s nearly impossible to find. I even turned the pocket clip to be opposite side of the button so it would be a guide as to where the button is, but it shifts too easily so that it can’t even serve that purpose.

Sofirn makes some excellent lights and sells them at reasonable prices (I got this one with a 40% coupon code). But this is one that fell through the cracks.

bushmaster
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I asked for and received the coupon code for the SP10V3 a few days ago. I got busy and never sent the order in. Sure am glad now after reading the sad stories from you folks.

Keep your nose in the wind and your eyes along the skyline.
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