Inside a focusable work light with serious lithium battery "issues".

[@m4xwellmurd3r]

"Don't try this at home by the way...What am I saying. Try it at home if you wish. I'm doing it" -Clive 2016

[@AttilaAsztalos]

Hey - it's still miles safer than neon transformers... ;)

[@knusperkrusteamstitzel7251]

or playing with microwave transformers and magnetrons ;-)

[@phils4634]

Especially using Clive's FART Transformer (what with methane + air being a rather explosive mixture - one spark and you're curtains, mate!)

[@TunsaMcHaggis]

"I could enter by the other end, this is going to end in tears isnt it" oh my

[@SeanBZA]

8800mAh is the total charge you can put into it over the cycle life of the cells. ie 10 cycles of use, and 5 were used in the factory.

[@jasejj]

SeanBZA I think that's probably an overestimate:-)

[@pauls5745]

hahaha

[@toolthoughts]

tearing into a lithium cell with pliers... safety squints engaged!

[@LethalBacon479]

Another AVE fan I see!!

[@trouxa952]

stereomike111 Have your mom on speed dial! Corntact!!!

[@FennecTECH]

I love AVE

[@blairsharpe2798]

What's AVE?

[@FennecTECH]

youtube chabnnel

[@Rick1885]

I was very disappointed when no sand poured out of the battery. On a side note, those chargers are hilarious.

[@zh84]

RescueRick911 Yes - the choice is between one that doesn't charge it at all, and one that overcharges it so much the batteries might explode.

[@dos541]

I wonder how many people will start their car on fire with this thing

[@bitelaserkhalif]

RescueRick911 or smuggle cocains inside of those...

[@1pcfred]

I was rooting for dirt, or rice.

[@ABaumstumpf]

The best is when they stick in some coin-cells :)

[@charliedobbie8916]

13:53 “What’s the best way into this... Violence, I’m guessing.” :-D

[@zh84]

Charlie Dobbie Do you know what a Glasgow kiss is? :-)

[@cheezstake6976]

"I may have to enter this at the other end. This may end in tears."

[@MrEdrftgyuji]

Top tip - one of those adjustable pipe cutters work very well at opening battery cases - you can get them at Wickes, B&Q, etc.

[@TDGalea]

"This isn't a good idea. Excellent." Why I love you.

[@CaptainChrisMoore]

I'm interested in what kind of ebay feedback you leave lol

[@chartle1]

Banggood is advertising 9,900 mah cells. Someone called them out and they came back with an odd run around reply and in the end they said they were really 1,500 mah.

[@TheJohn8765]

Heh. I bought some Ultrafire "6000 mAh" cells from ebay (knowing full well they were generally about 1000 ma, but quite cheap and with a protection circuit), and I opened one up out of interest. Small cell as expected. And compacted *sand* to make it feel "quality in the hand". Lol. Chinese sellers are such good scammers.

[@cebruthius]

Serious request: You should start selling t-shirts with slogans like "Explosion containment pie dish" and "Vise of knowledge" etc. on them

[@cebruthius]

"Let me get my snips"

[@renxula]

Not the good snips. Also, "Let's take it to bits!"

[@webchimp]

"What could possibly go wrong?"

[@iainbanachowicz8318]

righteo ummm ok Cheap chinese ebay shit One moment please

[@Motorman2112]

"quite a modest..."

[@evilutionltd]

This 18650 over-rating is getting silly now.

[@TheSpotify95]

There's now some on eBay that are rated 10,000mAh... even though the theoretical maximum is Panasonic's 3400mAh cell.

[@sqeeye3102]

There are legit 3500 mAh cells now. I have some that I've tested all the way to 3550 or so. These cells came in my Olight s30r iii flashlights. Olight is a Chinese company that makes very high quality lights and sells very well rated batteries with them. FYI, Clive tested an Olight magnetic charger a while back and liked it a lot as well.

[@n0username0n]

Ive seen 13000mAh and 16000mAh on ebay in the past year. Shits hilarious and so so many have sold.

[@pauls5745]

overstated by 4x!! will they soon advertise 12,500 mAh?

[@deviatefishy]

I love it when these videos arrive just in time for dinner.

[@slimysi99]

Just a thought. Would a plumbers' rotating tube cutter be a handy cell opener?

[@michaelcalvin42]

Yes, yes it would be. I've opened batteries using one before. Ah, childhood memories.

[@FedoraSpunk]

@@michaelcalvin42 thanks for the info!! I have some lithiums that look like they're a little too full :)

[@brianjrichman]

I knew it... "It seems quite a good deal... except..." That has to be one of the classic lines form you Clive. Nice.

[@sleeptyper]

Whenever i feel that humanity has some hope, all i need is a video about chinese "quality products" to remind me of the reality.

[@Woogoo336]

Humanity in general has hope, but the Chinese have a few things to worry about...

[@JohnDoe-qx3zs]

+Woogoo336 Overpopulation being the biggest one, and the cause of most others. Treating humans as disposable is a sensible long term strategy, which also diverts blame, unlike the old policy of trying to directly limit production of excess humans.

[@Woogoo336]

John Doe Treating humans as disposable, like slavery? That's not good. Who gets to decide who is disposable? Is everyone disposable? Great place for extreme racism and bigotry to start. That's kinda the paradox of population control, how can you do it without becoming corrupt and tyrannical (and mass murdering) and/or getting rebelled against?

[@gillenzfluff8380]

Woogoo336 Release some predator animals they aren't racist at all!

[@jtveg]

14:52 *_"Don't try this at home, by the way cause ah, well I mean, who am I to say you know. Try it at home if you wish"._* 😉👍🏻 No other KZbinr has ever had the guts to say this before. Brilliant. Thanks so much for sharing. 👌🏻

[@69mrsteveo]

Hand rolled like a cuban cigar.

[@69mrsteveo]

AvE fan here.. Keep it in a vise.As an aussie like Dave on EEVblog.

[@icsamppl]

Don't turn it on, TAKE IT APART!

[@1marcelfilms]

i cant stand ave or eev blog with their annoying hosts

[@joeennis2571]

hand rolled on the thighs of Chinese virgins

[@Eddygeek18]

Your such an intelligent man. I have watched 100+ of your videos and i love every single one of them. Just listening and learning from each. I started watching with little to no knowledge in electronics i thought i knew abit but you have showed me otherwise lol. I love learning and watching these videos defiantly teach :) Thanks for making videos and i look forward to watching them in the future :)

[@GadgetAddict]

I think I'd rather have a classic 18650 torch with a sliding focus control.

[@stridermt2k]

Regarding the low capacity batteries: Could it be that they are produced in such numbers that the battery manufacturer(s) have/has developed a QC process akin to resistors and such components that they separate the failed cells out by how much capacity they have then sell them to mass production houses so that the battery producer still makes money even on the "bad" ones.

[@Thermalions]

That's not a QA failed battery though. They've so little in them that they'd never reach a decent capacity and the 8800mAh marking is just pure fantasy.

[@stridermt2k]

Thermal Ions I appreciate your insight, thank you!

[@JasperJanssen]

Thermal Ions well, not *just* a qa fail battery. It could be a QA fail and then sold to the people who made them into a fake cell. But it looks like they're just made like shit.

[@SianaGearz]

Perhaps there was a defect on the manufacturing line so it wasn't winding them properly any longer, and they noticed that and threw away the whole batch. They were never going to be high-capacity battery with electrodes this short, but perhaps they were intended to be more properly packed. Then someone else picked up the junk under the pretence of recycling it, labeled it up and sold them on.

[@lolman123401]

Actually with such low capacity cells, usually they're tiny cells inside of the 18650 case and the rest is filled with sand (which is why they were dented)

[@brianartillery]

"What's the best way into this? Violence, I'm guessing..." And that's what electronics is all about. Great stuff. Informative, and entertaining, as always. Nice one.

[@Szlater]

There was a time when you could report a U.K. supplier to Trading Standards and action would be taken against them for selling faulty, dangerous or fraudulently advertised goods, but sadly it doesn't seem to be the case any more what with the cuts to council budgets and the proliferation of resellers of Chinese tat. It'll probably take something truly horrific to happen before we see any change.

[@Thermalions]

The actual seller is likely still in China, just with a distribution warehouse in the UK staffed by an illegally underpaid patsy who doesn't speak english and just puts stuff in boxes to be posted.

[@Szlater]

Thermal Ions You are almost certainly correct.

[@Szlater]

Saud Siddiqui Huh? Nothing to do with "political correctness", everything to do with Trading Standards and local council budgets being cut to the bone thanks to austerity, and the proliferation of cheap Chinese imports making any sort of control almost impossible.

[@ahaveland]

Luckily, not many baby elephants use US swimming pools...

[@andywood2012]

People buy these devices directly from Chinese suppliers, they are usually sent by "free china mail" and pay no VAT or duty and as such the buyer takes on the risks directly. This lamp looks a great product if you bin the batteries and chargers at a fraction of a branded price product, but with any purchase like this you should known what you are buying and how to test it before you use it. If you are not able, then buy through a regular supplier, you will pay VAT and duties, as well as importer costs and profits, and the product will by liable to EU safety regulations.

[@ChrisD4335]

If the power goes out and the people next door ask to barrow a flashlight I bet Clive tells um oh sorry I don't have one.

[@KarlBaron]

He took all his apart

[@m4xwellmurd3r]

He'll tell them "I have all the parts that make flash lights, but no actual flashlights"

[@TheRealColBosch]

"Give me thirty minutes, I'll build you one." And then it has twenty warm white LEDs, a solar panel, and a disco mode. And farts fire.

[@WolfmanDude]

They will get a free tour thru his flashlight museum and will have the choise of 5000 flashlight models in the gift shop.

[@Heimbasteln]

ChrisD4335 If the power goes out clives house would be brighter than it is when the power is on, because he finally has an opportunity to test all the lamps

[@joshuabest100]

you know what this means Clive you now have to plug the car charger in while it's on muhahaha

[@m4xwellmurd3r]

I wanna see this. Load it with those batteries and plug it in with that car charger. I wanna see something go bang.

[@markflack9191]

so do i, lets see it explode.

[@SquareBiscuitProductions]

We all do! #BigCliveGoesBang!

[@BrokebackBob]

Clive, get one of those Atomic LED flashlights advertised "As Seen On TV" that claims to have some ridiculous amount of lumen output.

[@SproutyPottedPlant]

Yes please do, my Dad just showed me a 'bargain' on eBay of one of those lights, my Olights, Thrunites, Zebralights probably out shine them easily.

[@drkastenbrot]

Knuckles the Echidna those lights are usually powered with AAAs. They dont stand a chance even against cheapos like the forrader c12

[@anca30000]

One of these days, your nickname will be "The 3 Finger guy" But... You're the best Ever!!!! Your sense of humor is great!!!

[@CarstenSvendsen]

"Of course, AvE just saws it in half" - Shots Fired!

[@mattq41]

Your explosion containment pie-dish won you my subscription

[@lyfandeth]

Clive, in the states we can buy knitted kevlar "tradh handling" gloves in sny hardware store, about $5 a pair. They're fireproof, cutproof, good protection and good dexterity when you are working with things that might bite. In case you decide to become a pianist and need all those fingers. :-)

[@Thereal111t]

Explosion containment pie dish. This is my new favorite channel.

[@Peter_S_]

_"violating the integrity of the curvaceous cell in a dramatic manor"_ I love Bigclivedotcom

[@dustinhipskind7665]

For getting the lithium cell open, toenail clippers work well to pry open the sealed end. Then once the sealed end is lifted around the circumference, needle-nosed plyers can be used to peel the outer casing down by rolling it.

[@MrSmith336]

Thanks Clive for the video. I have never deconstructed a Li++ battery. Appreciate the view of its internals..

[@namespacetoosmall]

Always nice when the ECP-D comes out. :)

[@renton9999]

clive, what you need is a fine-toothed hack saw, a clamp, and a guide rig so you can saw open batteries the long way (just enough to split open the case) to the point cutters can do the rest of the job

[@JavaRatusso]

You are way too cool Clive! You tear into the same products I buy but that I have not dared to peer inside. Keep making these vids as it's far more entertaining watching and listening to you! Cheers from Texas.

[@zandane]

Gah... Now I feel like a horrible child... I've sent one of these to my parents... I'm glad they don't really use it too often, time to give them a call, see if I can get them to see if it's made just as cheaply

[@kg4boj]

"What am I to say? Try it at home if you wish, I'm doing it!"

[@iamdarkyoshi]

Clive, you know we all wanted you to charge the cells with the included car adapter. Also, you should replace the charge jack with a micro USB jack and add a TP4056 charger board.

[@aaryjan]

3:39 : is the typical max of a car (lead acid) battery is 13.8, is 14.4 typical when you are driving and you sort of get an inbetween value of that battery itself (which may irl be a bit lower by itself naturally) and what is coming from the car charging circuitry?

[@gordonmcmillan883]

Looks like somebody bought the light, the batteries, and the chargers separately in bulk and soled them as an ( inappropriate ) set?

[@googletitsfost]

The typical "the connector fits so it must work" kind?

[@drkastenbrot]

Moose the connector must fit and ill take the cheapest available

[@JerryEricsson]

Cool linemans pliers, used to wear a set of those with my Amy field uniform, way back when I was a field wireman.

[@PetRatty]

might get one of these, thanks Clive. I need a new car

[@tomatolicious]

Take a shot every time there was a sexual innuendo in the 18650 teardown

[@annelisemeier283]

tomatolicious if I wanted to get hammerd Id just ex a bottle, same effect

[@gilessteve]

I bought a cheap 'Cree' bicycle light with four 18650 Li cells. When I took the cells apart two of them were in fact dummy cells with no functionality at all! Replaced them with two Li cells salvaged from a very old Nokia phone and all is well three years later.

[@Estabanwatersaz]

ANOTHER good one Clive. A thousand thanks.

[@Folsomdsf2]

The lens assembly is.. rather reasonable, I was surprised.

[@Klonkiller361]

The famous last words of an electrician: "what could possibly go wrong?"

[@-yeme-]

you should definitely put one of the batteries on to charge with the car charger and leave it to see what happens. in the pie dish ofc, so its guaranteed to be safe

[@mavos1211]

Clive your knowledge of electronics, circuits and electrics is incredible but what I find just as impressive if not more is your knowledge of dismantling shit.

[@MrBrymstond]

This is going to end up in tears... EPIC!

[@phillipbartlett1819]

I wonder if that's a hichikers guide to the Galaxy quote, lol.

[@Willielikesmonkeys]

"Jam packed with chemicals", Now that sounds like a good time at Clive's house to me.

[@BenjaminGoose]

Regarding li-ion battery capacities, currently the highest capacity available at the moment is 3600mAh and is produced by Panasonic (and possibly others), but they are quite expensive. I recently found a 4-pack of 3400mAh (and they are, I tested them) Panasonic batteries for about £10. Was very pleased!

[@sirp0p0]

Come on clive, that's a high quality hand rolled Chinese cell. You don't get that kind of quality and uniqueness anywhere else!

[@CatNolara]

As it is with almost every cheap chinese product: most of the work is done, you just have to finish it yourself ;)

[@svampebob007]

"Don't try this at home, I mean who am I to say? try at home if you wish, I'm doing it" -bigclivedotcom PSA of the year!

[@johnspringer9082]

Good video Clive. You know the car charger and batteries must be tested. I may have a line on Titanium pie plates (bomb shields)

[@cogidubnus1953]

Just a thought...do Clive's dustmen get danger money?

[@speakerfreak2000]

I recently bought a cheap flashlight which takes 18650 cells. It came with the same rubbish 1 resistor only car charger and paper weight 18650 cells. But a 4.2volt wall charger putting out 4.15 +- volt. I have some panasonic cells for it. They are non protected ones though. Am i save charging the 18650 with the wall charger, or should i charge them externally with a 18650 charger?

[@secretivesquirrelstudios]

I bought a couple of these lamps about a year back, without the batteries thankfully (and considerably cheaper), the lamp unit itself actually works pretty well and is decently made, but mine has a UV element (about 390nm) instead of the flashing mode . This UV mode wasn't mentioned at all by the seller, but makes it about twice as useful to me. The chargers which came with them is 4.2v, but seemingly cut out the instant any load was applied to them, To make it worse, one of them fell apart leaving a pin in the power socket. The chargers went straight in the bin after that.

[@woooweee]

Good to know, many cheap headlamps have suspiciously cheap versions which include the charger and batteries.

[@JerryEricsson]

I picked up a flashlight with the same exact head but on a regular type flash lantern type body, it takes 3 18650's the entire unit is made from aluminum, rather heavy and extremely nice when working in tight areas, has a top handle and will stay on flat surfaces rather nicely

[@8bpspfreak2]

I would just deattach the battery pack from the PCB and put the contacts on a seperate 18650 charging board with protection. Then stick the output contacts to the actual battery pads on the PCB. Also of course solder the input wires onto the 18650 charger board, toss the chargers to a different universe and just use a USB --> tip plug of the proper size to charge/use the batteries/light.

[@GitGoodGaming]

Hoorah! New episode!

[@GitGoodGaming]

Explode the batteries with the 12v car charger xD

[@jaylund7426]

Zachary Strickler Agree

[@Labsheriff]

Finding all these new devices on Ebay must be a practice thing - when I go on and look around I spend countless hrs scrolling through tons of identical, me-too items. Never seem to find any variety - the Zen of Clive eludes me.

[@-yeme-]

the advanced search feature is good for when theres loads of identical listings getting in your way, put in a keyword they share to exclude from your results

[@HuntersMoon78]

Why do they insist on putting that irritating flashing mode on led torches

[@bills6093]

You know you have to use the car charger and see what happens, right? You can't get away with teasing us like that. Nice video.

[@JonathanWellskcender]

Excellent video as always. Do you know what the voltage of the cells when you received them? Maybe the 18650's were sat at a low voltage for too long, degrading the capacity. (Not that they were ever anywhere close to the advertised 8000mah; but maybe 800mah.)

[@bigclivedotcom]

The voltage was good on them when they arrived.

[@rockyfosgate]

Jonathan Wells I've had many cheap Chinese 18650 with a similar capacity.

[@JonathanWellskcender]

Thanks for the reply. Such a shame and waste that they'd make such a low capacity cell. I wonder what the cost difference is between making a ~150mah cell and a ~2500 mah cell is.

[@Pentti_Hilkuri]

Are all 3 so low capacity?

[@ABaumstumpf]

I think the packaging, storage and shipping is the biggest factor in cost. i'd bet that just for the production alone the difference is a few cents.

[@Catrik]

WOW! I noticed the on/off button looks similiar to what I have in my chinese headlamp, otherwhise is, ofc, looks completely different. It has the SOS mode too! I've had it for many years and didnt know about it :D

[@ElectricGears]

I suspect that the construction of the cells is done to allow the scammers to use the same equipment to make them as the real cells. All they have to do is temporally change a setting on the winding machine during the night shift and they can switch over to fake crap. Plus they don't have to worry about scrupulous potential customers wanting to inspect the factory and finding extra incriminating machines.

[@DielectricVideos]

I wonder if the loose wrapping of the electrodes in the cells was done purposefully to make them more tolerant of overcharging? The extra air-space could provide expansion room for off-gassing of electrolyte during overcharge, which could then recombine later after the charger has been removed.

[@Ale.K7]

I was expecting both chargers to be 5V. The wall charger disappointed me, but the car charger is pretty exciting!

[@GadgetBoy]

Did anyone elce catch that the focus ring is labeled "dimmer"?

[@ciprianwinerElectronicManiac]

It's called the same on my cheap chinese focusable flashlights.

[@codebeard]

Speaking of focus and LEDs, do you know what I should search for if I want a discrete LED with an extremely focused beam? I want to do an in-class experiment with mirrors/lenses, but I am concerned that if I use a (low power red) laser that children might not be smart enough to blink/look away if it's accidentally reflected in their direction. I thought maybe just a non-laser LED might be safer, but I am not sure if they come in versions with a low (high?) viewing angle.

[@maicod]

Could you measure the voltage when you connect the car adapter to your bench power supply @ 13.8 V but then when its gone through the circuit board (where it goes into the batteries) ?

[@ricksanchez7999]

xD I like this guy always going out of his way and tearing into stuff- when he can. I like how he does all the math behind it as well, very good. I like tearing into electronics myself, and I can say that he deserves more subs. Best of KZbin I'd say. BigCliv- Thank you.

[@blackout57]

I like your videos, they are fair. I like them mostly because you are not angry like the others. But use some real "fireproof" gloves. If one day a lithium battery burns you will get seriously injured. The plastic of your gloves can melt on your skin. I say that for you, and for the peoples that will do the same after viewing your videos. Please keep continuing to be so kind on your videos. I really like it.

[@spudhead169]

I don't get it, if there's just a resistor inline with the 13.7V input, then shouldn't the output also be 13.7V if there's no load on it??? And shouldn't the output voltage drop under load?

[@ferrumignis]

You are correct, I also wondered about this.

[@ethanpoole3443]

SpudHead I did not get a close look at the PCB, but it is possible that the LED was drawing power from the load side of the resistor, which would pull the voltage down a bit with a 68-ohm resistor inline. But, otherwise, you would expect to see nearly the same voltage on both sides of the resistor since the 10-megohm impedance of the meter will cause very little voltage drop across a 68-ohm resistor.

[@spudhead169]

Yes that's probably why, there did look like there was another resistor on that board which I guess is the limiter for the LED, as there's no way that LED was drawing 200mA. So my guess is that 68 ohm resistor is inline with the input/output, and like you said, the load side of that resistor is connected through another resistor and LED to ground.

[@Woogoo336]

Could you actually build protection into the flashlight? It looked like it has enough room.

[@gordonlawrence3537]

You can but some extremely small protection circuits off fleabay and some of them even work!

[@drkastenbrot]

Woogoo336 yes, theres little boards available on ebay for the appropriate current. I would recommend sticking in a micro usb charging board tho.

[@gordonlawrence3537]

drkastenbrot is right. There have been some reviewed by Julien Ilet that work for sure.

[@SianaGearz]

Yeah i bought some MicroUSB charging boards with built in over discharge protection, they seem to be well designed. This looks like a proper solution.

[@gavincurtis]

Siana, I saw those too. Definitely the way to go. But I think there is still "the other half" which is usually incorporated into the lipo battery pack. A charge/discharge control chip with dual FET. Not sure how it would work with separate cells like this. Unless they have similar protection internally.

[@GeneraleRus]

I was wondering, there is at least ONE of these worklight (or even normal LED chinese flashlights) that don't have the stupid flashing and low power mode, but just straight up full power? working on the 18650 cells? It seems impossible for me to understand if ebay ones aren't multimode

[@TheEightBitLink]

LEDs in lights like that usually are Cree, though they tend to be low-binned Crees since it's cheaper and easier to get a low-binned Cree than it is to try and knock off Cree.

[@criggie]

Clive - how should one dispose of a monstered battery? How do you dispose of them safely ?

[@bigclivedotcom]

Lithium batteries are actually very inert when fully discharged. I recommend discharging them if possible before disposal.

[@phillaboody]

is it possible that the auto and AC power packs (chargers) are not chargers and are used for direct plug in and use whilst plugged in?

[@Firecul]

Phillip Aboody I'd believe it for the AC pack but for the 12v the current going through that would be great enough to charge the cells even when the led is at full power.

[@MrHarney]

Glad you put gloves on :)

[@techy4198]

What kind of logic were the manufacturers of that car charger following when they decided to use a single resistor!?

[@mibars]

Cheap, charges battery, sometimes does not explode

[@atbglenn]

and sometimes they do

[@PWARHOLM]

'For use with devices that use 12V'

[@techy4198]

What purpose does the resistor serve though? Some super-crude attempt at a current-limited supply?

[@dos541]

They want it to explode so they can sell more of them like how the big manufacturers design in something to break in their product like using all rubycon caps and putting in a single no name cap so it will die

[@toysareforboys1]

3500mah for the new Sanyo NCR 18650GA 10amp ones, love love love them.

[@JohnDoe-qx3zs]

I wonder about two possible hidden safety features: 1. Maybe the circuit doesn't charge the batteries at all, only power the lamp from the input, in that case 3V is optimal battery substitute, 12V needs something limiting the LED current. 2. Maybe any attempt to overcharge would be stopped by the current eaten by the LED or some feature in the chip (or even a clever use of the second FET in that package).

[@SarahC2]

So - is the 12v supply charging the batteries in series? 3 batteries x 4v (12v) ? I thought for a minute they'd done something so the 3v adaptor charges them in parallel... (but 3v is too low anyway....)

[@travelbugse2829]

How about rigging up a Dremel + disc in a frame, with some kind of non-metallic hand cranked chuck? Whizz it round one end like a mini can opener, turn over and do the other; then a final cut by a second handheld Dremel + disc along the length, and you will have opened it up in 30 seconds. On the downside, there'll be less fear of sudden detonation!

[@SlyPearTree]

Where can one get an explosion containment pie dish? CERN? NASA?

[@maicod]

+slypeartree just use Grannies Pie dish like Clive does :) I use a stone soup cup

[@carlyonbay45]

probably poundland

[@ABaumstumpf]

Aperture Science

[@phils4634]

Astute marketing opportunity there Clive - sell your "hand-signed" explosion containment pie dishes via your patreon site! You could start marketing your very own line of "dubious safety Chinese electronics - as dismantled by Big Clive" :-D

[@maicod]

Phil S LOL

[@andrewpike2924]

Would like to have seen inside the 3V supply. How safe is it.

[@Gooberslot]

Do you have any recommendations for decent 18650 batteries and chargers?

[@gordonlawrence3537]

Personally I buy SAFT through a UK distributor. Expensive but they usually exceed spec by about 10% to 30%.

[@1pcfred]

As I understand it the right battery depends on the application. High storage capacity batteries have low current delivery capability, and high current batteries have low storage capacity. So which is decent depends on your use. Right now I think LG HG2 browns are some of the best batteries available. But there's loads of counterfeit knock offs of those too. So if a deal looks too good to be true it probably isn't.

[@Zapp3012]

Best bet is to visit a local vaping supplies shop. I got some Panasonic's there for £10. Avoid buying online, you don't know what you're getting. And avoid anything with 'fire' in the name. Trustfire, Ultrafire etc.

[@Gooberslot]

Yeah, avoiding fakes is a real problem. Are there any online shops that only sell legitimate batteries? Buying locally isn't a great option for me.

[@gordonlawrence3537]

***** depending on how many you want to buy most mainstream distributors will deal with you but usually have a minimum order value. There is also the issue of some countries (like the UK) not allowing batteries to go through regular post. www.saftbatteries.com/sites/default/files/Distributors.pdf is a list of SAFT distributors who will not have fakes. Panasonic and others also have similar lists.

[@DogsBAwesome]

They are selling this on Ebay as a 30 watt light. 30W Rechargeable Convex Lens Lamp Focusing Unless they are going for an incandescent equivalent, it's a bit cheeky.

[@medvidekkrupicka1404]

Chinese quite often use Li-Ion cells from recycled notebook accu-packs. You can usually find it out seeing spot-welding marks on the bottom of the cell.

[@Brennonicolini]

is there a video explaining how to build a battery capacity tester? really wanna know if my expensive 3200mAh panasonic 18650 are really 3200mAh.. thanks

[@SarahC2]

The "snake eye" wide dimples for unscrewing the LED cover, is there a proper adjustable tool instead of using needle nose pliers?

[@bigclivedotcom]

+Sarah Cartwright You can get tools designed for removing watch case backs that have adjustable prongs.

[@JustSomeGuy1967]

Hi BigClive !! Is there a way to get rid of the low power and crappy blink mode on most LED "work lights" ?? This drives me crazy and sometimes brings about a dead light because I didn't click enough times when done with the light.

[@bigclivedotcom]

Alas no. Not without writing a new piece of control software and installing a new microcontroller.

[@htomerif]

I got 2 flashlights for my dad with the same on/chopped/SOS "driver". One of them lasted a few minutes before the solder melted and the LED's literally fell off. The second one I knew what I was getting so I added some heat-sinking, but their supply wires were 26 gauge, maybe worse. It took me a while to figure out that the cloudiness was smoke coming from inside the flashlight. Anyway, long story short, it works fine now as both a flashlight and hand-warmer. Sorry, I wrote this comment before watching the rest of the video. I was wondering if they'd skimped dangerously on the lamp wires, but it seems ok-ish. Probably not bad for the price with a few tweaks.