I may read the text all wrong, but isn’t a coat closet the perfect place to provide a runaway cell with ample fuel?
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It’s far enough away for me but I guess you’re right. It blows up there will be enough fuel to start fire. I’m afraid to discharge it. Not sure what I’ll do with it , maybe I should bury it underground?
Naw, a coat closet has way too much air. You’d need to pack it in finely crunkled dry leaves, which would provide lots of insulation. 
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Can you provide a link to the K40’s description ?
Is that a light with 3 batteries in series ? If so then the flashlight did the charging right - up to 12.6 (12.7) volts. For some reason one of the batteries got unbalanced and reached full charge earlier than two others but since the pack’s voltage hadn’t reached 12.6V the flashlight proceeded with the charging.
This is the reason why series of cells must not be charged without at least a BMS, and a balancer.
EDIT: Probably this is the flashlight, but it seems to have no built-in charger.
Supbeam changed their name to Acebeam several years ago.
I did not get any suggestions as what to do with the battery. I wasn’t going to discharge it and I wasn’t going to leave it in my house.
I did what I had to do to protect my family and my people. There’s not many of us left.
My cousin’s an engineer. Here’s what he said.
See screenshot.
I think he’s right I probably put that one battery in backwards .It makes sense with the output which was very low
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This reminds me of a joke I read about 60+ years ago. A tandem (2 pers.) bicycle reaches the summit of a steep climb.
The front cyclist says: wow, that was a close one. We almost did not make it.
The second cyclist answers: I know. If I hadn’t squeezed the brakes so hard all of the time we surely would have dropped into the canyon.
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Thanks for posting the likely reason for the interesting event you described as I was wondering what could have caused it.
How old are you 80 years old? Remember a joke from 60 years ago?I guess I missing something.
What does your weak joke have to do with what happened? I probably put it in backwards. I’m not perfect. Are you?
2 batteries putting in the work, one battery putting in the metaphorical brakes. I found it quite funny 
Also, I really dislike lights with more than 2 series batteries for this exact reason. With 2 batteries, if you put one in wrongly, they just cancel out and nothing happens.
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I bought the awesome x25 from the acebeam website. That was yesterday. Have yet to receive a confirmation email. I did use paypal. When I go on their website that’s where the receipt is, I have no way of looking what I ordered. I hit view order and it doesn’t show it.
In this situation using PayPal which I’ve hardly used over the years, does ace beam send me a confirmation email when it’s shipped? I’m used to them being sent out almost immediately after purchase. Thanks
EDIT: right after I posted this I said maybe I should look and spam! And there it was. I guess next time I should look in spam first. I have a couple email addresses. I have never had their messages in spam before. Mystery solve.
What cell do you think is in the Ace Bean 5000 mAh protected BT 21700 battery? It claims to be 15 amp. The 50E, with the same capacity claims to be 9.8 amp… further down in the description.
Who knows. There’s a number of possibilities. E.g. Eve 21700 50E.
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Yeah, it’s tough to tell without removing the Acebeam wrapper. 
Ok. To narrow it down what other 21700 cells…5,000 milliamps and claim to be 15A besides Eve which I have no idea if that was tested and verified.samsung 50E is 9.8A
I didn’t want to start a new thread for this. So I thought I’d put it here. I’m getting the ace beam x25. They sent me an email with tracking. I noticed that it is UPS.
I asked them I like to track it from Asia to United states. And that was not possible. Not sure why they can’t have tracking from those other countries but I’m glad by doing it that way there’s no tariffs on it. Explanation with screenshot below.
If the warehouse in the US is enlarged and more Diversified, and there won’t be an issue at all with shipping to different countries and possible tariffs. At least I hope there isn’t!
Sorry for the late reply, but I think your question is best answered with this post: 519A, Try Slicing!
So from what I see, a dedomed 5700K 519A will be more rosy than a dedomed 2700K. But that is also the case with the domed versions.
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There’s an advantage to these tariffs! My light left China on June 19th. Arrived in Singapore on June 20th. Arrived in Louisville Kentucky on June 22nd. Arrives in the Philadelphia area tomorrow June 23rd for delivery.
The way of the past would take 10 days to get here maybe 14. This is 4 days. Faster than Priority Mail sometimes.
Anyone remember any Sofirn/Wurkkos 21700 tubelights?
The holster on my bag that I keep an 18650 light in, is getting kinda stretchy, enough so that with some entreaty, I can actually push out the light from top or bottom, which concerns me.
Tried some 26650 lights, too fat. IF23 is also a bit too portly with the extra girth for the sidelight.
I could probably stick a wider-head 18650 light in there, but prefer a lens-down config.
But I vaguely recall a 21700 tubelight from however long ago that would probably fit the bill.
Or even a more recent one that I’m just forgetting about.
Anyone recall any good candidates?
Convoy S21E
Wurkkos TS21 - but looks likes out of stock or discontinued.