i respect olight as a company, i have many of their flashlights and batteries and they work perfectly, i'm not surprised about the design and complication of things about this charger
With NiMH the low current you measured was part of the 1 minute precharge cycle to detect overdischarged 4.2V LiIon. Afterwards charge current rises to 500mAh
So, it will slowly ramp up the voltage of a protected lithium cell that is in "shutdown" mode, until the Mosfets turn it "back on"? That's awesome! Many chargers simply give up at that point, and just make no attempt at charging the cell. Ot must put out some kind of voltage "pulse" or something at around 2 volts or so, and then be constantly monitoring for a sudden back feed of voltage as the cell "wakes back up". Very cool.
Bought multimeter for myself with jack detection, so if leads are in amps socket, and you try to measure voltage, it beeps. Saved me a few times already from blowing fuse. Sometimes you just got distracted by something, and it's nice to have that functionality to remind you.
I did some research and found the Chinese product sheet on taobao. The part in the Chinese title after MOS FET is 直拍 or Zhi Pai, which translates to "Pen-hold grip" (a term from table tennis), and can also translate to something like "straight" or "direct". Judging by other products having "penhold" in the name on taobao, my guess would be that it's the Chinese word for "Surface mount". When translating Knee-slapper to Chinese, it shows as "Xigai". Maybe it's translated by someone who misheard it?
Wow. It doesn't even really make sense in it's own language... 😕 Datasheet: "Mosfet Buy it now, buy it here only You only buy at my shop" "Voltage: 10 volts On Resistance: .014Ω VGS: Blah blah blah....."
I can highly recommend this charger for travel. It needs lees space in your case and with a USB charger with power delivery (for notebooks) you only need one charger for everything. Bought a second OLIGHT charger for charging two batteries at a time. Only downside, because it is charged by USB an AA takes a few hours to charge but overnight no problem...
Olight makes a little flashlight called the S1R that pulls 2.8 amps from the battery! You should check it out, it has a pretty complex circuit for a flashlight, I'm sure. I'd love to see inside.
me too.. I am still pissing myself over it 30 min later.... and reading these comments about knee slappers isnt making me stop any time soon.... I needed this laff thats for sure.
very nice presentation. Ive been using these universal chargers in my go kits for years now. They work well for the price and do multiple batteries of mine. Thanks for the video!
Chinese seems to be quite a poetic language, full of figures of speech. The pictograms in question are 直拍 (zhí pāi). Literally, this means "straight shot" which is the Chinese expression for surface mount. As someone else pointed out, 膝盖 (knee slapper) doesn't look similar at all but it is pronounced xī gài. The Chinese language is pronounced in two very different ways, Mandarin and Cantonese, and if I were to hazard a guess this could have been the inception of this error. Another reason that I've read is that there used to be a common and terrible software package in China that was used to translate from Chinese to English. Even with the best translation software, number in Chinese is inferred by context. It would be impractical to have a second pictogram for more than one of something. The most common translation error you will see are plural where the word should be singular and vice versa.
This looks like a very compact travel charger for batteries. If I had had it when playing on my GBA then I would have saved a fair amount of space needed to charge the batteries.
Big Clive. is it possible the 1mA parasitic drain you tested at the end could have been caused by the battery powering the part of the circuit that tries to work out the type of cell? It took a few seconds to detect the cell when it was plugged in I wonder if you did the parasitic drain test longer it would suddenly drop to an almost 0 value. a lot of my led flashlights (including an olight) which use electronic switching actually brag about the self discharging being in the several
I have one of those chargers that has been rebranded as Foursevens ( flashlight company). It came with my flashlight I bought as well as the 550mAh RCR123A battery that is rated at 5c discharge. The charger works great for charging the battery and seems to take about 45mins to charge from "flat".
I bought 2 of these a few years ago cause they were inexpensive ($11 ea). It's a lil slow @ 500mAh with larger Li-Ion cells, but very convenient. I still have 1 unopened in the box.
I have found a couple potential candidates for the F42A that I can't at least rule out out of hand, and I thought I'd share them with you. Forgive me if I'm out of line. The NJU7704/05 is a voltage detector, and the version identified with F42A is an active low 4.2v detector. The next candidate is the "R1114x SERIES LOW NOISE 150mA LDO REGULATOR" which I found referenced as F42A in more than one database. These two are the only things I found with compatible packages that go by those numbers.
I know how you like your lights, Clive, and Olight makes a number of excellent torches including rechargeables that use a simpler version of the system in this video to charge the battery while it's still inside the light.
It's definitely good to always mention resetting the leads after a current measurement. I've only forgotten once but once is enough - thankfully the device was being powered by a bench power supply with a low current limit so no harm was done except to my pride.
TFF.... yes we need to fucking know ffs ..... Wtf is knee slapping fet tech??? was this reverse engineered from the roswell crashed UFO?? and where can I get my hands on 1 to test out ;)~
The only one negative is that it is limited to 0,75A, i have this charger and use it with hand crank generator so it would be nice if it would be charging at least 1A. I use 18650 3500mah battery in my flashlight and it takes around 5-6 hours to charge it so it is a long time :) that is the only negative the rest is very good and helpful.
You stand there and hand crank your generator for 5-6 hours? You should be thankful that it only outputs .75 amps. The more it would output, the HARDER your generator is going to be to crank.
@@davelowets When i charge my phone it is 1,5A and even more than 2A but it is to hard to crank for me for long period of time. Usually i can crank 1,2-1,5A for 30min.
The chip with no id on the top I would hazzard a guess is a timer esque device. Knee slappers are you polarity swappers and I would measure the wave form on the magnetic connections with a scope. I'd dare say with fets involved were looking at pulse width modulation to charge the cells.
They make nice flashlights too. I suspect they're run by a microcontroller and not an flashlight ASIC but I havent worked up the courage to potentially destroy one to find out what kind. I did send them an email and just got the standard "I do not have this information on hand now" response.
A nice little charger Clive. I'm wondering how they have achieved the electrical connection to the magnets. I've been trying to do this to connect my heated garments to the 12v on my motorbike with no luck. The trouble I have with standard connections of course is that I forget I am tied when getting off then things get embarrassing very quickly )
the package is designed to prevent easy shoplifting (people would open the package and stuff the product in their pocket and leave the package behind) the lithium cell is a 2/3 a cell and probably is a primary cell witch probably has a diode built in to prevent charging. the data pins not being used are good because you dont have to worry about infecting your devices if the power bank or charger is a malware loader (there has been scares of rogue chargers infecting devices with malware (inside the charger is often a small micro processor designed to load some software code onto the device)). the data pins not being connected can be bad because it is unable to limit current (many devices use a resistor network across the data pins to power to tell the device if it is a genuine charger). you can also destroy the electronics you are working on if the device does not put enough current to blow the fuse in the meter
I don't really know much about electrical engineering. I like watching these kind of videos because it brings out the inner tinkerer in me. This is probably a dumb question but i was wondering what would happen if you put 2 batteries together end to end in series and tried to charge them both?
Very cool! So, no matter which ends that you stick to the battery, it corrects the polarity if they are reversed? That's awesome. It's too bad it doesn't have a switch on the USB end for LiFePo4 cells, or I would have instantly bought one.. I imagine a switch could possibly easily be hacked in, but with today's digital electronics, it might or might not be that simple. Maybe I'll pull the trigger on one, and give it a shot at modifying it. If I do, and am successful at getting it to correctly work with the 3.2 volt cells, I'll report back with the results and how it was done. Unless Clive does it first.. 😜
It would come in handy to charge the "extra" cell. I have a number of clocks around the house which take a single AA, and I have various things which take 3xAAA. All my chargers charge batteries in pairs!
I need one of those flat battery chargers. I been pulling them out of old phones and keeping the good ones. I'm using them to repair solar lights with bigger batteries. Turning things into solar lights. They're good free batteries.
i don't know if you remember, but there was a big issue a while back with those rechargeable self-balancing transportations systems. I got myself a unicycle variant (from a fireman ironically) and while I was taking a look at the inside of it the other day it made me think, what is it inside these types of devices that actually makes them dangerous? as in what is it that's making them set on fire?
do u want to stalk his work bench??? u must be a sick individual like others cos it could be interested to see what other sex toys he has tested out in the past...muahahahahaa :)~ ... sorry I had to add to this in my own comedic way.
So how often do you have to scrap entire breakdowns due to not paying attention to camera angles or zooms? Seems like it would be easy to do since you have to be focusing on what you want to say and making sure the camera is looking at what you want it to at the same time.
Thats very cool little compact charger. But I don't really need it, I have only one 18650 powered flashlight and I almost don't use that flashlight. Most of the time I use nitecore tube(keychain type) and nitecore nu20(powerfull small headlamp), both have built in battery and are charged from micro usb.
I bought one of these a few weeks ago to make a video and forgot about it! One of the few things I bought from eBay and was delivered in amazon packaging. Oh well - think you've covered it now. I'll just use mine. Cheers Clive. :-) Knee slapping - that's a panto thing right? Or is that thighs?
Hi Clive great Laugh once again LORL i now have a vision of Clive wearing Pink Lederhosen doing The Big Clive Knee Slapping Dance to the tune of the Tetley Tea folk dance...great stuff.
You must degauss this ! I do it often because the unit is not accurate otherwise. Just use some old transformer coil with hole big enough to fit the unit trough it. I use AC230 to 24V transformer then the coil from some other transformer connected to 12V, does the job very nice.
That's a neat little battery charger. I may find this one. I'm looking for a good 18650 battery charger. And I like that power bank you have. Ozark trail is walmart but I've never seen that power bank in my walmart.
Best charger I own to bring dead laptop batteries back to life .. 18650 this charger works so good I’ve bought 5 of them.. They have revived over 500+ totally dead 18650 batteries out of old scrap laptops .. For $19 🇨🇦 on Amazon it’s a bargain .. I also use this charger to charge my Eneloop batteries for my camera flashes.. since the charger only uses 5Volt USB I can charge my batteries quickly on a remote photo shoot with just a power bank.. I ordered 7 more to hand them out as Christmas stocking stuffers for my kids. Cheers from HudsonBay 🇨🇦 It’s -19c today October ( no global warming up here)
I bought one of these just for charging some 18650 lithium cells I had and after charging one for about an hour I started to smell something very hot and plasticy. The case was extremely hot and it was warped and discolored where I believe the inductor was. I don't know what went wrong, and the cell was only about 3.9V when the olight died. Decided to return it instead of a teardown. Its a shame because its a really cool concept but I seem to have got a dud.
At uni we routinely use current probes for oscilloscopes and the ones we have (teledyne-lecroy) can be degaussed by selecting an option on the scope, I dont think the clamp is any different
So... I know this is an "old" video, at the end you checked if it had an inherent discharge of the cell when disconnected. Did you, by chance, check to see if it sent back voltage along the USB port with the USB power supply disconnected and a battery connected. If so, this could be quite a bit more useful than described by the manufacturer... turning any single cell into a USB power supply. I have encountered a similar 'feature' in a 12v-USB adapter/FM transmitter where you could connect a USB power supply to it using a USB A-A cable and power the whole thing through the USB port without a 12v supply.
I have a similar FM transmitter... It takes 2 AA cells inside the unit to power it. Then the transmitter itself pulls out of the "box" with the 2 AA cels in it, and has a USB end on it to plug directly into a USB port to power it without the battery box. The box is then left with a USB port in it that will provide 5 volts out from the 2 AA cells. The port in the box, however, doesn't put out much current, and will drain the 2 AA cells VERY quickly if using it as a portable power bank.
I was very confused as to what this is, then suddenly I was amazed. Now I want to know if you can connect high voltage up and use it as a shock device...
Thanks for the info on the hall sensor - I wondered why American clamp meters only work on ac current and not dc. I have looked for a dc clamp meter here, but have not yet found one.
Sorry if this was asked/answered already, but I saw this question on Amazon and thought it interesting. For the NiMH type batteries, once charged, does it continue with a 0.1C trickle/top-off charge after reaching capacity?
When I got my olight s2r baton 2, I was just in the habit of throwing its magnetic charging cable in with my cellphone cable and others, which sit right next to my phone. It had slipped my mind about magnets being close to media devices. I was reminded of it when it attached itself to my phone. I flipped out and was worried it had wiped my cellphone, but everything was good. It now gets it's own spot to sit, about 5 feet away from everything lol
It was just the old magnetic media that could be corrupted by magnets. Modern stuff is not really affected. I'd keep magnets away from camera modules though.
Is it just for single cells? Can you put a couple of cells into a series battery holder and charge from there? What about a 9v rechargeable? Be a bit hard to put those ends on the battery, but if you could, will it charge it?
that tip about multimeter's is about 5+ months too late. I forget what I was doing now ( I was testing if something was repaired ?) but I managed to cause all lights in the room to go out briefly except my laptop and networking gear and then i heard my UPS kick in and then the power strip tripped and the lights came back on. unfortunately it was 2hrs before realizing what I did wrong! thankfully I had multiple safety failure mechanisms in place as I have a federal "fire" Pacific electrical panel ( waiting retirement ). there is a good reason that they put circuit breakers in power strips even if they don't have any surge protection functions.
knee slappers. did anyone know what this means? I kinda know but would want to clarify with someone. I was told it was a relay where it would cut off if a opposite pole connected to ground, basically a switching system to bridge the opposite powering charge poles.
I will buy one from Amazon. I have a Welch Allyn otoscope/fundoscope device that has an NiCd battery (72300) rater at 3.5V. I hope it can charge it. The original charging deck of Welch Allyn costs $200+.
i respect olight as a company, i have many of their flashlights and batteries and they work perfectly, i'm not surprised about the design and complication of things about this charger
With NiMH the low current you measured was part of the 1 minute precharge cycle to detect overdischarged 4.2V LiIon. Afterwards charge current rises to 500mAh
I purchased one after seeing your video many months ago. It’s very useful and can help resurrect a Li ion cell that is a bit over discharged.
So, it will slowly ramp up the voltage of a protected lithium cell that is in "shutdown" mode, until the Mosfets turn it "back on"?
That's awesome! Many chargers simply give up at that point, and just make no attempt at charging the cell. Ot must put out some kind of voltage "pulse" or something at around 2 volts or so, and then be constantly monitoring for a sudden back feed of voltage as the cell "wakes back up". Very cool.
Bought multimeter for myself with jack detection, so if leads are in amps socket, and you try to measure voltage, it beeps. Saved me a few times already from blowing fuse. Sometimes you just got distracted by something, and it's nice to have that functionality to remind you.
I did some research and found the Chinese product sheet on taobao. The part in the Chinese title after MOS FET is 直拍 or Zhi Pai, which translates to "Pen-hold grip" (a term from table tennis), and can also translate to something like "straight" or "direct". Judging by other products having "penhold" in the name on taobao, my guess would be that it's the Chinese word for "Surface mount".
When translating Knee-slapper to Chinese, it shows as "Xigai". Maybe it's translated by someone who misheard it?
直拍 means 'buy it directly from my shop' which is'not second handed, no middle reseller'.
Wow. It doesn't even really make sense in it's own language... 😕
Datasheet:
"Mosfet Buy it now, buy it here only
You only buy at my shop"
"Voltage: 10 volts
On Resistance: .014Ω
VGS: Blah blah blah....."
More knee-slapping vids please.
you should really have amazon affiliates setup for stuff like this. just went and ordered one and it would help the channel i'm sure.
@@rickyperez8154 anal destruction
I can highly recommend this charger for travel. It needs lees space in your case and with a USB charger with power delivery (for notebooks) you only need one charger for everything. Bought a second OLIGHT charger for charging two batteries at a time. Only downside, because it is charged by USB an AA takes a few hours to charge but overnight no problem...
Olight makes a little flashlight called the S1R that pulls 2.8 amps from the battery! You should check it out, it has a pretty complex circuit for a flashlight, I'm sure. I'd love to see inside.
Jimmy Puppo every 800+ lumen will pull out that much current, nothing special about it
The BLF A6 I have from back around that time pulls 5A+ from the 18650 cell.
The "Knee slapping the current" made me laugh a lot more than it should have.
me too.. I am still pissing myself over it 30 min later.... and reading these comments about knee slappers isnt making me stop any time soon.... I needed this laff thats for sure.
That's why it's knee slapping....
very nice presentation. Ive been using these universal chargers in my go kits for years now. They work well for the price and do multiple batteries of mine. Thanks for the video!
"Blow a fuse in the meter" If you're lucky! You might just burn out some knee-slappers in your circuit under test.
It sure would be a knee-slapper if it would happen to someone other than myself. 😕😵
Today on "Things You Didn't Know Existed and Now Need"
If only it was big enough to do car batteries too, i'd buy it instantly
Nick Drudge
That is exactly what I was thinking :)
car battery terminals arnt magnetic for one..and secondly, why would you want to charge a car battery from usb anyway?
Maybe charge the car battery from the in car USB port thats plugged in the lighter socket. it realy works try it
@se09uk, i cant, my electric car is too busy recharging itsbattery from the giant alternator i put on it, tesla will be mad at me
Chinese seems to be quite a poetic language, full of figures of speech. The pictograms in question are 直拍 (zhí pāi). Literally, this means "straight shot" which is the Chinese expression for surface mount. As someone else pointed out, 膝盖 (knee slapper) doesn't look similar at all but it is pronounced xī gài. The Chinese language is pronounced in two very different ways, Mandarin and Cantonese, and if I were to hazard a guess this could have been the inception of this error. Another reason that I've read is that there used to be a common and terrible software package in China that was used to translate from Chinese to English. Even with the best translation software, number in Chinese is inferred by context. It would be impractical to have a second pictogram for more than one of something. The most common translation error you will see are plural where the word should be singular and vice versa.
I see ALL kinds of errors lost in translation... Plural, singular, you name it..
This looks like a very compact travel charger for batteries. If I had had it when playing on my GBA then I would have saved a fair amount of space needed to charge the batteries.
Knee Slappers... lol. Proper cheered me up before I go to another shite day at work. Great vid as always Clive and an interesting little charger.
Clive, zooming is the best thing ever! Thanks for yet another great video.
I don't like the extreme zoom, I wish he would bring stuff closer to the camera for those macro shots
Big Clive.
is it possible the 1mA parasitic drain you tested at the end could have been caused by the battery powering the part of the circuit that tries to work out the type of cell? It took a few seconds to detect the cell when it was plugged in I wonder if you did the parasitic drain test longer it would suddenly drop to an almost 0 value. a lot of my led flashlights (including an olight) which use electronic switching actually brag about the self discharging being in the several
I have one of those chargers that has been rebranded as Foursevens ( flashlight company). It came with my flashlight I bought as well as the 550mAh RCR123A battery that is rated at 5c discharge. The charger works great for charging the battery and seems to take about 45mins to charge from "flat".
I bought 2 of these a few years ago cause they were inexpensive ($11 ea). It's a lil slow @ 500mAh with larger Li-Ion cells, but very convenient. I still have 1 unopened in the box.
I have found a couple potential candidates for the F42A that I can't at least rule out out of hand, and I thought I'd share them with you. Forgive me if I'm out of line. The NJU7704/05 is a voltage detector, and the version identified with F42A is an active low 4.2v detector. The next candidate is the "R1114x SERIES LOW NOISE 150mA LDO REGULATOR" which I found referenced as F42A in more than one database. These two are the only things I found with compatible packages that go by those numbers.
I know how you like your lights, Clive, and Olight makes a number of excellent torches including rechargeables that use a simpler version of the system in this video to charge the battery while it's still inside the light.
It's definitely good to always mention resetting the leads after a current measurement. I've only forgotten once but once is enough - thankfully the device was being powered by a bench power supply with a low current limit so no harm was done except to my pride.
I've done it also... The current price of the fuses for my FLUKE meters taught me a lesson that I wont make again. Those fuses are EXPENSIVE!
We need to know more about Knee Slapping FET technology!
I have a feeling it's going to be vital to research into quantum sexism. 🤔
hahahahahahahaahah
TFF.... yes we need to fucking know ffs ..... Wtf is knee slapping fet tech??? was this reverse engineered from the roswell crashed UFO?? and where can I get my hands on 1 to test out ;)~
could it be bootstraps? A boot strap might be a knee slapper in slang.
hey dude psst i heard it was from roswell ..
ParedCheese I just assumed it was related to gut-busting capacitance and rib-tickling resistance...
The only one negative is that it is limited to 0,75A, i have this charger and use it with hand crank generator so it would be nice if it would be charging at least 1A. I use 18650 3500mah battery in my flashlight and it takes around 5-6 hours to charge it so it is a long time :) that is the only negative the rest is very good and helpful.
You stand there and hand crank your generator for 5-6 hours?
You should be thankful that it only outputs .75 amps. The more it would output, the HARDER your generator is going to be to crank.
@@davelowets When i charge my phone it is 1,5A and even more than 2A but it is to hard to crank for me for long period of time. Usually i can crank 1,2-1,5A for 30min.
Knee slapping the output to the battery actually made me cry, thanks dude, made my day.
The chip with no id on the top I would hazzard a guess is a timer esque device. Knee slappers are you polarity swappers and I would measure the wave form on the magnetic connections with a scope. I'd dare say with fets involved were looking at pulse width modulation to charge the cells.
They make nice flashlights too. I suspect they're run by a microcontroller and not an flashlight ASIC but I havent worked up the courage to potentially destroy one to find out what kind. I did send them an email and just got the standard "I do not have this information on hand now" response.
A nice little charger Clive. I'm wondering how they have achieved the electrical connection to the magnets. I've been trying to do this to connect my heated garments to the 12v on my motorbike with no luck. The trouble I have with standard connections of course is that I forget I am tied when getting off then things get embarrassing very quickly )
That's a rather clever device! I am curious to know if it has backfeed protection. I suppose one of those diodes would do the job, though.
I have one of these and use it all the time to charge my 123a's off a pc usb port. It's surprisingly quick and handy to charge them.
the package is designed to prevent easy shoplifting (people would open the package and stuff the product in their pocket and leave the package behind)
the lithium cell is a 2/3 a cell and probably is a primary cell witch probably has a diode built in to prevent charging.
the data pins not being used are good because you dont have to worry about infecting your devices if the power bank or charger is a malware loader (there has been scares of rogue chargers infecting devices with malware (inside the charger is often a small micro processor designed to load some software code onto the device)).
the data pins not being connected can be bad because it is unable to limit current (many devices use a resistor network across the data pins to power to tell the device if it is a genuine charger).
you can also destroy the electronics you are working on if the device does not put enough current to blow the fuse in the meter
I don't really know much about electrical engineering. I like watching these kind of videos because it brings out the inner tinkerer in me. This is probably a dumb question but i was wondering what would happen if you put 2 batteries together end to end in series and tried to charge them both?
Absolutly aswome that you take such interesting Items apart!
I have this on my Olight S2R torch, brilliantly bright torch
Very cool! So, no matter which ends that you stick to the battery, it corrects the polarity if they are reversed? That's awesome. It's too bad it doesn't have a switch on the USB end for LiFePo4 cells, or I would have instantly bought one..
I imagine a switch could possibly easily be hacked in, but with today's digital electronics, it might or might not be that simple.
Maybe I'll pull the trigger on one, and give it a shot at modifying it.
If I do, and am successful at getting it to correctly work with the 3.2 volt cells, I'll report back with the results and how it was done. Unless Clive does it first.. 😜
How often do you want to only charge one NiMh cell?
+mikeselectricstuff Yeah, it is a bit of a gimmick.
It would come in handy to charge the "extra" cell. I have a number of clocks around the house which take a single AA, and I have various things which take 3xAAA. All my chargers charge batteries in pairs!
That's a neat piece of kit.
It doesn't need to detect the battery type because it doesn't care. It's just a DC-DC boost circuit and converts whatever it gets to 5v.
new 2 your show, have been 2 your website and will patronize u when my card is fully charged thank u
I need one of those flat battery chargers. I been pulling them out of old phones and keeping the good ones. I'm using them to repair solar lights with bigger batteries. Turning things into solar lights. They're good free batteries.
i don't know if you remember, but there was a big issue a while back with those rechargeable self-balancing transportations systems. I got myself a unicycle variant (from a fireman ironically) and while I was taking a look at the inside of it the other day it made me think, what is it inside these types of devices that actually makes them dangerous? as in what is it that's making them set on fire?
I have a slew of Olight tactical lights. They're a great product.
From my searching the F42A SMDs appear to be high-speed LDO regulators with on/off control.
Hey, Clive, can you please do a shop/desk tour, and maybe even home tour? - Regards, Whyrtire
Like so he can see this.
This could be a long video -- 40 hours perhaps
Yes please, this would be awesome!
do u want to stalk his work bench??? u must be a sick individual like others cos it could be interested to see what other sex toys he has tested out in the past...muahahahahaa :)~ ... sorry I had to add to this in my own comedic way.
Why his home ?
bit odd.
curiosity is an odd thing. I second his request
I do really like your meter that goes up to 20A
So how often do you have to scrap entire breakdowns due to not paying attention to camera angles or zooms? Seems like it would be easy to do since you have to be focusing on what you want to say and making sure the camera is looking at what you want it to at the same time.
I like the magnetic charger that comes with devices from fun factory.
That's one neat charger indeed.
Paraphrasing Jasper Carrott - "If you can't improve the product, make the packaging impossible to get in to". SO TRUE!
Thats very cool little compact charger.
But I don't really need it, I have only one 18650 powered flashlight and I almost don't use that flashlight.
Most of the time I use nitecore tube(keychain type) and nitecore nu20(powerfull small headlamp), both have built in battery and are charged from micro usb.
I bought one of these a few weeks ago to make a video and forgot about it! One of the few things I bought from eBay and was delivered in amazon packaging. Oh well - think you've covered it now. I'll just use mine. Cheers Clive. :-)
Knee slapping - that's a panto thing right? Or is that thighs?
Hi Adam, would be nice to see it in action on your new Oscilloscope.
Hi Clive great Laugh once again LORL i now have a vision of Clive wearing Pink Lederhosen doing The Big Clive Knee Slapping Dance to the tune of the Tetley Tea folk dance...great stuff.
Well when you think of a bucking bull, it's knees might be slapping (given a poor translation) so my thought is that they're buck converters.
Blimey, that's quite a leap!
You must degauss this ! I do it often because the unit is not accurate otherwise.
Just use some old transformer coil with hole big enough to fit the unit trough it. I use AC230 to 24V transformer then the coil from some other transformer connected to 12V, does the job very nice.
I like your sleep schedule, Big Crive
That's a neat little battery charger. I may find this one. I'm looking for a good 18650 battery charger.
And I like that power bank you have. Ozark trail is walmart but I've never seen that power bank in my walmart.
+coondogtheman1234 It was from ASDA in the UK, which is owned by Walmart.
bigclivedotcom I'm guessing that you can't get this power bank in the US only the UK? I will try Amazon but I couldn't find it there either.
Best charger I own to bring dead laptop batteries back to life ..
18650
this charger works so good I’ve bought 5 of them..
They have revived over 500+ totally dead 18650 batteries out of old scrap laptops ..
For $19 🇨🇦 on Amazon it’s a bargain ..
I also use this charger to charge my Eneloop batteries for my camera flashes.. since the charger only uses 5Volt USB I can charge my batteries quickly on a remote photo shoot with just a power bank..
I ordered 7 more to hand them out as Christmas stocking stuffers for my kids.
Cheers from HudsonBay 🇨🇦
It’s -19c today October
( no global warming up here)
What camera do you use Clive for close up great vids
Yey I suggested this! Glad you made the video Clive.
i got this using just sometimes to charge a cell. looks good but ill watch the hole video and see how good it is.
a very clever product. BigClive, is there any electrics in that mid section with the blue covering ?
I'm pretty sure those knee-slappers are both dual MOSFETs, which are simply H-bridging the battery terminals.
Dang it, my fortune! I totally do that with alligator clips and little magnets :(
Vantss Me too!
I just use neodidlium magnets and suitable strips of metal to attach my leads.
Thanks Clive
I bought one of these just for charging some 18650 lithium cells I had and after charging one for about an hour I started to smell something very hot and plasticy. The case was extremely hot and it was warped and discolored where I believe the inductor was.
I don't know what went wrong, and the cell was only about 3.9V when the olight died. Decided to return it instead of a teardown. Its a shame because its a really cool concept but I seem to have got a dud.
If you haven't already, check out their flashlights. They are some of the best for the money
love the late night/early morning uploads
At uni we routinely use current probes for oscilloscopes and the ones we have (teledyne-lecroy) can be degaussed by selecting an option on the scope, I dont think the clamp is any different
What is the name of that universal flat-battery charger. I genuinely need one of those ;)
So... I know this is an "old" video, at the end you checked if it had an inherent discharge of the cell when disconnected. Did you, by chance, check to see if it sent back voltage along the USB port with the USB power supply disconnected and a battery connected. If so, this could be quite a bit more useful than described by the manufacturer... turning any single cell into a USB power supply. I have encountered a similar 'feature' in a 12v-USB adapter/FM transmitter where you could connect a USB power supply to it using a USB A-A cable and power the whole thing through the USB port without a 12v supply.
I have a similar FM transmitter... It takes 2 AA cells inside the unit to power it. Then the transmitter itself pulls out of the "box" with the 2 AA cels in it, and has a USB end on it to plug directly into a USB port to power it without the battery box. The box is then left with a USB port in it that will provide 5 volts out from the 2 AA cells. The port in the box, however, doesn't put out much current, and will drain the 2 AA cells VERY quickly if using it as a portable power bank.
Very nice product. Can you test how well it charges a 18650 battery? Thanks Clive!
I was very confused as to what this is, then suddenly I was amazed. Now I want to know if you can connect high voltage up and use it as a shock device...
For what? Metal? The magnets won't stick to human bodies. You might as well stick to using tape and bare wire ends.. Or better yet, nipple clamps. 🤷🏻
Thanks for the info on the hall sensor - I wondered why American clamp meters only work on ac current and not dc. I have looked for a dc clamp meter here, but have not yet found one.
My choice of DC clamp meter is the very good Uni-T UT210E avail;able from Amazon.
Sorry if this was asked/answered already, but I saw this question on Amazon and thought it interesting. For the NiMH type batteries, once charged, does it continue with a 0.1C trickle/top-off charge after reaching capacity?
When I got my olight s2r baton 2, I was just in the habit of throwing its magnetic charging cable in with my cellphone cable and others, which sit right next to my phone. It had slipped my mind about magnets being close to media devices. I was reminded of it when it attached itself to my phone. I flipped out and was worried it had wiped my cellphone, but everything was good. It now gets it's own spot to sit, about 5 feet away from everything lol
It was just the old magnetic media that could be corrupted by magnets. Modern stuff is not really affected. I'd keep magnets away from camera modules though.
@@bigclivedotcom ah ok. Thanks for that info, I wasn't aware newer stuff wasn't affected by magnets.
Is it just for single cells? Can you put a couple of cells into a series battery holder and charge from there? What about a 9v rechargeable? Be a bit hard to put those ends on the battery, but if you could, will it charge it?
Hey, red filter on the Charger Doctor like I suggested :)
that tip about multimeter's is about 5+ months too late. I forget what I was doing now ( I was testing if something was repaired ?) but I managed to cause all lights in the room to go out briefly except my laptop and networking gear and then i heard my UPS kick in and then the power strip tripped and the lights came back on. unfortunately it was 2hrs before realizing what I did wrong! thankfully I had multiple safety failure mechanisms in place as I have a federal "fire" Pacific electrical panel ( waiting retirement ). there is a good reason that they put circuit breakers in power strips even if they don't have any surge protection functions.
I have one of these & they are great.
The Irony of a L'Oreal "100 years of hairstyles" commercial before your video...
The 2 6 pin packages are dual transistor packets
wanted to buy one... nah I don't need it... sees Clive review.. now I want it
So, a quality product? Did I get it right?
Is it a buck-boost power supply so one can charge chains of multiple batteries at once?
That might explain the circuit complexity.
May have bought one of these just because of this video
knee slappers. did anyone know what this means? I kinda know but would want to clarify with someone. I was told it was a relay where it would cut off if a opposite pole connected to ground, basically a switching system to bridge the opposite powering charge poles.
lol, used this and fried the mosfets on mine. still one of my favorite chargers.
The magnet is to properly aline the eletrons to maximize efficiency
with its throum powered battery
Whats your camera setup? I don't personally care that much, but you should talk to AvE about it. He really needs some help with that focusing thing
Very interesting device 👍
BigClive, please include links for both chargers...
The FET knee slappers appear to be FET MOS transistors
Possibly dual or tri maybe even quad.
Quality video!
I m enjoying this!!!
good time of the day, if you have information, please tell me the markings of the analogs of the F42A component. Thanks a lot
wow zoom and a cool product! winner winner chicken dinner....I can see where this could be very very useful. cool vid dude
Fantastic charger for charging individual under voltage cells.... in a Laptop or power tool battery...
250ma for a nimh is a bit crappy, not enough to do a -dV termination so I assume it terminates on voltage?
I will buy one from Amazon. I have a Welch Allyn otoscope/fundoscope device that has an NiCd battery (72300) rater at 3.5V. I hope it can charge it. The original charging deck of Welch Allyn costs $200+.
with clamp on amp meters, you can get rid of the stray magnetics by snapping the jaws closed a coupla times