An interesting feature in this series of Duracell powerbanks is that they do pass-through -- you can charge the powerbank and power the load at the same time. Would have been nice to test the current limits in that mode.
I found it odd that a measly 5V power bank would have so much circuitry and a temperature sensor, it’s overkill plain and simple. But having passthru charging would explain the need for that that stuff or at least justify it more.
@mharris1270 get losses on all battery's ah is very misleading some would think a 10ah would run 1a for 10 hours its nothing like that not even half that. Even 0.5amp for 20 hours never happens. I only ever buy anker or Samsung leads
@@ezg8448 what? Lithium cells go bang and fire so its a good thing they have lost of components to monitor. When the cells is old or worn out this prevents a hot fire in you bag/house or on plane ... This power bank is truly good from safety perspectives
@@chrisredfield3240 ankers is not bad but is not top tier as their powerbank's also swell and go up in flames. I had a bigger one from banker which got puffy and bursts its case while charging. Bought it off amazon in Germany two years ago. The basic tip is, go with brand and round style case with 18650 inside as it is much safer.. Anker mh no maybe Duracell or IKEA? Sure yes
I think this might be the highest quality power bank I've seen taken to bits on this channel! Handles 2.5A without much sag? Thermistor for cell temperature protection? Some good quality cells? All in a nice relatively compact form factor? Color me impressed. Much different from the usual fare around here. Of course, it's nothing special compared to what is possible or should be done... but compared to what typically gets taken to bits on this channel? Yeah.
The inductor is used for both boost and buck (charging and discharging) using internal MOSFETs in synchronous dc-dc converters. The ADC is used for its fuel-gauge feature, and can be read from a microcontroller via I2C. A short button press turns on the circuit, long one turns it off. A double-press toggles a flashlight.
That is a quite nice inductor, it will for sure handle 2.5 amps just fine. It's mind blowing how efficient those little boost chip internal mosfets have gotten.
What an unbelievable video. I watched it, didn't understand a single thing. Just captivated by the knowledge. Good work. I'm sure if I know anything, I would be even more captivated.
My dad and a friend gave me some "Home Brand" light beer when I was about 11... That put me off alcohol for life. Now as an adult, it's more about the cost - I'd rather spend my money on cheap Chinese electronics 😂
I use the flashlight to bypass the "low current shutdown" feature on one of my powerbanks. (I also use it as a flashlight, but this is more fun because it's an unintended feature!)
You should take a look at some cabinet lights on eBay, they basically mount on the hinges and have a switch that turns on the light and they use an L1028 battery which I haven't seen used anywhere before to be honest If they're actually half decent you can get them for around 0,40-0,50£, could light up all of my kitchen cabinets for like 3 bucks excluding the batteries
Thank you! You reminded me that I have a bottle of jäger in the back of my freezer. I'm at work atm but I know what I'll drink a glass or two of when I'm home =)
@@BigClive I've bought a "Miboxer C4" to charge all my 18650 cells. It also charges a LOT of others and A,AA,AAA also. It measures accumulated mAh, chg. time, chg. current, chg. voltage of all 4 cells simultaneously. Best purchase I've made in some time, I highly recommend it (In case you don't have a proper charger for those)
I found one of these Duracell power banks in the woods near where I live. Mine is smaller model number PB1 it's round in shape, 5v input 2.4A max output 1.2A max. I charged it up an it seems to hold a charge, I can charge my vape an phone of it. It's good to see it's a quality build. Your power bank is larger than mine. I charge it using my phone charger as it's the same voltage. These seem much better than the cheaper ones.
If you think it's glued or ultrasonically welded, giving a plastic case a really sharp whack with the handle of a bigish screwdriver often breaks the bond.
Is this first powerbank with genuine, quality, high capacity cells in it and with thermistor to boot, I'm impressed. They have good product this tear down is best advertisement there could be.
I have one of these, it's about three best quality I could find after trying others. Interesting feature which I don't think you mentioned is the charge through facility which charges the cells and the load simultaneously.
Yes, I have its bigger brother and am really impressed with it. I found a lot online at prices that were far too cheep to be believable, clearly fake copies. So bought direct from Duracell.
Jagermeister AKA NyQuil (in the US it is a night time cold medicine with nearly the same flavor). Which as you state is really good if you like that flavor , as I do, will work just as good on coughs as NyQuil I would suppose. :)
Dear Mr. Jägermeister (you are what you drink) - this looks like a quality powerbank. We cannot yet get it here in Australia, but elsewhere there appears to be a single cell, dual cell and triple cell version 3350mAh, 6700mAh and 10050mAh (as advertised on an Indian site).
If you want to build your own powerbank, with this injoinic chip (or its cousins), you'll find several pre-buil pcbs. But of curse you can get the chip and follow the reference designs in the datasheet.
Suggestion for a tear down 'what is the fault ' video P.I.R sensors for household floodlights, these days they all seem to fail with a ' light stays on ' fault. Only temporary cure is a hard reset on the fusebox
The spiceyness of the jerky is from "Cajun". Cajun seasoning is an awesome seasoning as it has a link to acidity. The stronger the acidity of a dish, the spicier cajun gets. You can actually make dishes that taste cajun without tasting at all spicy, which is a unique and wonderful taste of it's own (think Arby's fries).
I have had one for quite awhile, it is the only “2.4amp” bank I have had that will charge an iPad whilst using it, and I get 2 nearly three charges of my p9 lite which has a 3000mah battery
You may notice that there are no rectifiers in the schematic, it must use three internal FETs as switches and synchronous rectifiers to form a Buck converter for charging and a boost converter for the 5V output. This is how it might achieve 97% efficiency although it still sounds very ambitious.
Thanks Clive. I gently squeeze devices with my Panavise and adding a little alcohol to get them open without tearing them up. But sometimes it doesn't work very well. The Chinese do make some pretty good adhesive.
F1 and F2 on the data pins are ferrite beads, which are used to suppress EMI. The control chip has a clock signal, so it is subject to EMI regulations.
If you want to turn kids off alcohol, don't do it with Jaeger. Give them a shot of SoCo. I got a shot of SoCo when I was 13 years old. My grandfather loved it and being the Italian he was he didn't give a flying toss about liquor laws and children. It was so retched that I didn't touch alcohol again until I was...oh...probably 25 years old (My first, and only, hangover.) As a note: SoCo is Southern Comfort. Not sure if the term SoCo is regional or not.
Southern Comfort is a whiskey with fruit and spice flavors. You can make a vile drink called Southern Dew that is SoCo with Mountain Dew. Mountain Dew is a green pop that is very sugary and caffeine laden. I'd love to see the Manx Beard Club drink this concoction favored by naive youngsters. Or even better yet force feed Ralfy it.
Heh... when we were 13 we'd make something we called "witch brew" and basically took a tiny bit from each of the bottles in our parents liquor cabinets and mixed it into one drink. Tasted like crap but got you drunk... and best of all the parents had no clue their liquor was slowly running out.
Southern comfort is a sweet, fruity, delicious and very child friendly liqueur, I discovered my mother's bottle when I was just a tot and had great difficulty keeping out of it. To this day I like it very much, very good mixed with five alive fruit juice, a drink I like to call a Michael Jackson as its light and fruity. You must have very unusual taste.
Inspired by your good self, when I tried to resurrect my Samsung phone (GT-B2710, not that ‘smart’ but very rugged) and noted the bulging battery pack, I did some disassembly. Sure enough, under the top is a circuit board with little electronic bits! Presumably charging control circuitry stuff..(my electrical knowledge is limited to a 12 month stint training as a BBC transmission engineer in the 90’s as a career break, before returning to medicine. Favourite transmitters were the BBC World Service array near Penrith, with a hall full of massive valve amplifiers. They carried some serious current. I have therefore opted to buy an OEM 1300 mAh replacement battery rather than a no name 750 mAh for 60% the cost.
I was thinking of making mine "user-replaceable", drilling a hole in the bottom of my notebook and then putting some spring loaded 18650 battery holders in there. As I have a LOT of 18650 cells, I could take some with me and replace them on-the-fly when they discharge, lasting all day long with battery charges. The problem is: These battery circuits have a memory and save how much capacity the batteries have left. This would mean if I put a single pair of almost dead batteries in there, it would say that I need to "replace the battery" and it would never recover with that same chip, even if I put good batteries back. Basically: The chip does planned obsolecence for you. Nice, huh? Damn.
@@fusseldieb An external battery pack would work..one that plugs into the normal charging port. GreatScott! has a youtube channel where he builds one and it could easily be scaled up to last a long time using many 18650s.
Perhaps those two resistors make a voltage divider at the data lines to make some of the dedicated charging port controllers work at a particular charging scheme.
@@BigClive Ah, thanks! Also, thanks for all of this great material. I love learning and, as my mother said, there are no idiotic questions, just a lot of inquisitive idiots. Still not sure what she meant by that, maybe I should ask.
The controller IC internally modulates DP and DM to follow Apple, Samsung, and BC1.2 charging methods... As mentioned in the video, they are likely just fuses to prevent fires when bad things happen.
@@josifvissarionovich5320 No quick charge, it only outputs 5V. Many devices limit themselves to 500 mA unless they get a signal from the USB power supply that it can output a higher current. This is usually called "fast charging". The signal is provided over DP and DM (like is done by quick charge).
The Aldi in The Netherlands and in Germany sometimes carries Mummelmann. It's jager-like but has a lower alcohol percentage and is smoother. If you're ever in one, keep an eye out for it. It's also cheap.
this video gave me an idea... I have a Bluetooth speaker that doesn't want to charge, I have shorted it with a faulty cable, but everything else works fine, just the charging... I could scrap a double-cell battery similar to this one and use the circuit board to charge the batteries of the speaker ^^ it should work as long as the battery is 2S and its in series (because the batteryes of the speaker are in series. I think it matters)
I asked my electronics guru friend how to get a ultrasonically welded plastic case apart. He took the case from me put it on the concrete garage floor and hit it twice with a four pound dead blow hammer and it came apart exactly along the seem. Perhaps you should try using a dead blow hammer which are amazing and not very widely known about.
The IP5209 is a buck + boost converter, which only need a single inductor. If you charge this thing with 5V and 5.6Ah, then it will have ~26Wh (@ 96% efficiency). Please don't confuse the electric charge of the cells (xyAh@3.7V) with the 5V in-/output...
I subsequently tested the cells external to the unit and it showed the higher capacity. So it is definitely bucking the 5V input to charge more efficiently.
According to the datasheet: The IP5209 supports D+, D- switching for Apple, Samsung and BC1.2 interface specifications. D+ D- short USB dedicated charging port D+ 2.0V, D- 2.7V, Apple 1.0A charging port D+ 2.7V, D- 2.0V, Apple 2.0A charging port D+ 1.2V, D- 1.2V, Samsung 2.0A charging port The IP5209 can be set to the battery type via the VSET pin 23. VSET floating, 4.2V battery VSET to GND, 4.35V battery VSET to VREG, 4.3V battery LIGHT PIN can directly drive LED with a maximum drive current of 100mA When LIGHT is not required, connect LIGHT to GND and IP5209 will automatically detect there is no LIGHT lighting function. There is a I2C interface Pin 1 = SDA Pin 24 = SCL
incase people not understanding chinese: It is an all-in-one BMS ic that 1) use only one inductor for boost and buck (charging the battery and boosting to 5V) 2) 2.4A max output, 2.1A max input 3) 14bit ADC for current and temperature measurement 4) build-in battery percentage feature for driving LEDs 5) can work with 4.2, 4.3 and 4.35V battery 6) i2c interface for advance feature And, don't believe in Chinese made 18650 cells, most of them are overrated.
Since the LED output is most likely just a FET to drive the lamp, the only power that should get used when nothing is connected is only the power needed to wake up the controller and charge/discharge the FET's gate to turn it on/off.
Is it not odd that the cells were made by LG and not Duracell? I had always assumed Duracell handled the manufacturing of their stuff from raw materials through to retail product.
Capacity is strongly linked to the charge voltage accuracy. If it doesn't reach optimum voltage then it won't fully charge the battery. I would check the battery voltage during charge to see what it goes up to. They should all be using sub 1% tolerance voltage references. I'd test the batteries on a separate charge circuit which you use for capacity comparison tests.
I'm from Wisconsin, we live on Jagermeister. According to Lewis Black, we're the only people who like it. But I am glad to see there's another people on the planet who do.
You can also find out if it has a step down circuit if you put your meter in series with the battery while charging. Is the batterie current higher than the USB current you have a step down converter. If the batterie current is lower oer almost the same its a linear regulator. I mean if you have the case open anyways than it makes sense to do so. If you dont want to touch the internals than the method with charging discharging is the way to go.
I'm always amazed at just how popular MREs have become these last 20 years, I thought I was the only weirdo that bought them up until the last few years.
Just an fyi in order for any device to enable the fast charge, quick charge, or many other fast charging technology there has to be data contacts. I believe it is for if the battery on the device or other components gets too hot the device sends out to the data connection telling the power supply to step down the voltage to standard charging 1 or 2 amp at 5 volts or whatever the standard charging rate is. Then once the temp get back down it will send out another command to step back up to the quick charge voltage and amps. If I am wrong correct me as it has been quite some time since I have learned about fast charging tech:P
Dunno about fast or smart charching, but what i know is that a specific resistance on the data pins (or voltage, i don't know what the cellphone actually sense) tells to the smartphone what amount of current it can "take". Some values are standard, some other are brand specific, but if you connect 5V on a phone it will absorb just 0.5A (which is USB standard limit). With the right resistors it will ask more current, til 2.4A.
It interests me that these days charge is always measured in milliamp-hours, not in coulombs, which are technically the appropriate unit. 6400mAh = 1.7C.
Im german so ive had to endure my fair share of Jägermeister over the years. A cold shot can be quite pleasent but when people start mixing the shit with coke or energy drinks thats when I start reaching for the rum.
In a way this is worth it just for the high current charge/discharge for other electronic projects, and the 3300mAh cells - as 18650 cells above 3000mAh are rather expensive. Those cells could be re-used in that "2 cell" (actually 4 cell) work style LED lamp if you don't have a use for them? As that would work nicely in there.
Hey Clive, i know you read every comment, which ill say again, is crazy. i just wanted to say that at 13:30 you were having some trouble with the Chinese datasheet being in... well, Chinese. there are apps out there for your smartphone or even computer that can take a photo (or on your phone can literally in real time, take what your camera sees) and translate it into English. its absolutely crazy to think such technology exists, but yeah give it a go, the google one is the best I've found
It's really pricey though. £24 on argos. I bought a "Bauhn" powerbank over a year ago from Aldi, it's 7800mah with two USB ports one standard at 1A the other for fast charging at 2.1 able to discharge both simultaneously too. The build quality is great, it has a torch, it has a 4 led battery read out, oh yes and it was £9.99.
I think you've missed in yoru calculations that the mAh value quoted is usually at the cell voltage, rather than at the boosted 5V for USB since the mAh of the cells is higher (at 3.2 to 4.2 volts) than the mah of the boosted 5V you get as output... using total energy in joules is a far better measure
Went looking to get one as it looked to be one of the better Power Banks you've tested but Duracell doesn't sell that model in the US it's a UK only product
I prefer the power packs that open and allow your own battery choices. But I have no idea how well those charging circuits work or whether the stepped-down voltages are obtained efficiently. At least I don't need to either solder in a battery or throw them away when they fail.
They are only 4.8amp CDR 18650's. So thats 9.6amp 6700mah in parallel. Samsung 30q is a 3000mah cell with 15amp CDR. The price is VERY similar. Makes me wonder why this was the choice that was made.
![[Live] : ONE 168 วันนี้!! "โจนาธาน vs ซุปเปอร์เล็ก"](http://i.ytimg.com/vi/0jIN65KgJsI/mqdefault.jpg)
Big clive the only person who can say "which version is this is this the disco version" and not get questioned
An interesting feature in this series of Duracell powerbanks is that they do pass-through -- you can charge the powerbank and power the load at the same time. Would have been nice to test the current limits in that mode.
I found it odd that a measly 5V power bank would have so much circuitry and a temperature sensor, it’s overkill plain and simple.
But having passthru charging would explain the need for that that stuff or at least justify it more.
@mharris1270 the Anker ones always exceed my expectations i have at least 6 and recommend them to anyone
@mharris1270 get losses on all battery's ah is very misleading some would think a 10ah would run 1a for 10 hours its nothing like that not even half that. Even 0.5amp for 20 hours never happens. I only ever buy anker or Samsung leads
@@ezg8448 what? Lithium cells go bang and fire so its a good thing they have lost of components to monitor. When the cells is old or worn out this prevents a hot fire in you bag/house or on plane ...
This power bank is truly good from safety perspectives
@@chrisredfield3240 ankers is not bad but is not top tier as their powerbank's also swell and go up in flames. I had a bigger one from banker which got puffy and bursts its case while charging. Bought it off amazon in Germany two years ago.
The basic tip is, go with brand and round style case with 18650 inside as it is much safer..
Anker mh no maybe
Duracell or IKEA? Sure yes
I think this might be the highest quality power bank I've seen taken to bits on this channel! Handles 2.5A without much sag? Thermistor for cell temperature protection? Some good quality cells? All in a nice relatively compact form factor? Color me impressed. Much different from the usual fare around here. Of course, it's nothing special compared to what is possible or should be done... but compared to what typically gets taken to bits on this channel? Yeah.
Duracell makes pretty expensive but high quality batteries aswell as these powerbanks
Drunk Scotsman eats alligator and rips apart battery
go shame yourself please
@@maicod no u
@@maicod r/woooosh
He's Manx.
@@platesomeat He's Scottish. th-cam.com/video/F6ofLi_Rd2U/w-d-xo.html
"Jagermeister: Its good assuming you like it" A ringing endorsement lol
Jägermeister is fantastic when it's ice-cold. The taste changes drastically between room temperature and freezer cold.
@@Varangian_af_Scaniae yeah its not bad, its just the great endorsement of "its good assuming you like it" that was great lmao
Ay, its an honest endorsement
The inductor is used for both boost and buck (charging and discharging) using internal MOSFETs in synchronous dc-dc converters. The ADC is used for its fuel-gauge feature, and can be read from a microcontroller via I2C. A short button press turns on the circuit, long one turns it off. A double-press toggles a flashlight.
Ha i knew it. LG cells in a duracell device. Makes me think that when replacing cells in a battery pack i should look for LG brand.
Datasheet sais it is 96% eff on load and 97% eff on charging. Seems to use the same inductor for boost to out and drop to battery.
Quite nice.
I was thinking the same thing (same inductor for buck charge and boost discharge) myself.
That is a quite nice inductor, it will for sure handle 2.5 amps just fine.
It's mind blowing how efficient those little boost chip internal mosfets have gotten.
the fact that you took the shot and got the munchies in the beginning of the video immediately made me subscribe and your content is amazing
I really appreciate the high quality pictures you print Clive, I can't imagine it being cheap to produce those, so, thank you.
It is easy to take for granted the amount of work that goes on behind the scenes to produce these gems.
The spudger has become the spudgee
spudgeded.
Spugindeed
What an unbelievable video. I watched it, didn't understand a single thing. Just captivated by the knowledge. Good work. I'm sure if I know anything, I would be even more captivated.
You know it's an interesting video when Clive puts his load into things.
My dad and a friend gave me some "Home Brand" light beer when I was about 11... That put me off alcohol for life.
Now as an adult, it's more about the cost - I'd rather spend my money on cheap Chinese electronics 😂
Lol
I use the flashlight to bypass the "low current shutdown" feature on one of my powerbanks.
(I also use it as a flashlight, but this is more fun because it's an unintended feature!)
You should take a look at some cabinet lights on eBay, they basically mount on the hinges and have a switch that turns on the light and they use an L1028 battery which I haven't seen used anywhere before to be honest
If they're actually half decent you can get them for around 0,40-0,50£, could light up all of my kitchen cabinets for like 3 bucks excluding the batteries
I've been eyeing these off. Really want a video before jumping in.
I have had these for a year or more. Works great. Haven't changed a battery yet. Except when i forgot to close a cabinet over the weekend
Not that interesting though seems like it is just bridged straight to the battery with a resistor.
I think they are camera batteries I remember similar batteries used in film cameras.
L1028 is very common in remote controls, garage transmitters/etc A23 12v
The Big Clive Show, brought to you by Jägermeister :D
Haha I can relate
Am I the only one who hates this stuff?
Thank you! You reminded me that I have a bottle of jäger in the back of my freezer. I'm at work atm but I know what I'll drink a glass or two of when I'm home =)
Do you ever feel the need to 3D print another case for these things, or do they all just go into a large box of 'stuff' ??
They get scavenged for the cells if they don't go back together.
@@BigClive you might want to reuse the circuitry, it's pretty sophisticated and efficient.
@@BigClive I've bought a "Miboxer C4" to charge all my 18650 cells. It also charges a LOT of others and A,AA,AAA also. It measures accumulated mAh, chg. time, chg. current, chg. voltage of all 4 cells simultaneously. Best purchase I've made in some time, I highly recommend it (In case you don't have a proper charger for those)
I found one of these Duracell power banks in the woods near where I live. Mine is smaller model number PB1 it's round in shape, 5v input 2.4A max output 1.2A max. I charged it up an it seems to hold a charge, I can charge my vape an phone of it. It's good to see it's a quality build. Your power bank is larger than mine. I charge it using my phone charger as it's the same voltage. These seem much better than the cheaper ones.
You give the best reviews on TH-cam and quite accurate and precise, instead of the others who just talk total nonsense...
Bravo Clive for using the excellent Motorola TurboPower charger!
If you think it's glued or ultrasonically welded, giving a plastic case a really sharp whack with the handle of a bigish screwdriver often breaks the bond.
Staaaaaab the battery, stabb it stabb it good
owo
@@XenXenOfficial what's this :3
You'll get some stabulous fireworks, for sure.
@@XenXenOfficial * Notices your bulging battery
It's called "tigging" the battery.
Some devices like this require a double tap on the button to turn on the flashlight led. Thanks for another great video Clive !
I tried both the double tap and long press. I'm guessing it's just a MOSFET inside.
Is this first powerbank with genuine, quality, high capacity cells in it and with thermistor to boot, I'm impressed.
They have good product this tear down is best advertisement there could be.
I have one of these, it's about three best quality I could find after trying others. Interesting feature which I don't think you mentioned is the charge through facility which charges the cells and the load simultaneously.
Yes, I have its bigger brother and am really impressed with it. I found a lot online at prices that were far too cheep to be believable, clearly fake copies. So bought direct from Duracell.
Clive, Duracell is a HUGE battery company based in the US and they hate safety related class action lawsuits. Imagine that!
I quit drinking 3 years ago. I will partake in spirit as we dive into this power bank.
Seen those at the 4.5£/kg nick nack section in the local equivalent of a goodwill. They have expanded to 3 boxes full of various powerbanks.
Jagermeister AKA NyQuil (in the US it is a night time cold medicine with nearly the same flavor). Which as you state is really good if you like that flavor , as I do, will work just as good on coughs as NyQuil I would suppose. :)
Dear Mr. Jägermeister (you are what you drink) - this looks like a quality powerbank. We cannot yet get it here in Australia, but elsewhere there appears to be a single cell, dual cell and triple cell version 3350mAh, 6700mAh and 10050mAh (as advertised on an Indian site).
for the datasheet on 13:42, I translate some: "...it use single inductor to boost and buck... synchronized boost, 96% efficiency..."
Damn, you get all the stuff on the datasheet correctly. The 14bit ADC is used to measure current and voltage.
Bravo to Duracell for quality components and design and zero potential lawsuits.
4:09 This is not going to plan. OK, this is something we hear so often that this kinda makes it "The Plan". Just Love it. Keep broadcasting!!
check out the goodmans 10,000mah power bank . i had it open and it appears to be one massive cell i think there available on ebay
If you want to build your own powerbank, with this injoinic chip (or its cousins), you'll find several pre-buil pcbs. But of curse you can get the chip and follow the reference designs in the datasheet.
Suggestion for a tear down 'what is the fault ' video
P.I.R sensors for household floodlights, these days they all seem to fail with a ' light stays on ' fault. Only temporary cure is a hard reset on the fusebox
The spiceyness of the jerky is from "Cajun". Cajun seasoning is an awesome seasoning as it has a link to acidity. The stronger the acidity of a dish, the spicier cajun gets. You can actually make dishes that taste cajun without tasting at all spicy, which is a unique and wonderful taste of it's own (think Arby's fries).
I have had one for quite awhile, it is the only “2.4amp” bank I have had that will charge an iPad whilst using it, and I get 2 nearly three charges of my p9 lite which has a 3000mah battery
Florida loves Big Clive.
You may notice that there are no rectifiers in the schematic, it must use three internal FETs as switches and synchronous rectifiers to form a Buck converter for charging and a boost converter for the 5V output. This is how it might achieve 97% efficiency although it still sounds very ambitious.
To be fair, it was a lot cooler than expected for the current involved.
That is likely what is happening
I'm glad to see that my positive opinion of duracell is not unfounded
But not in their leaky alkaline cells.
Thanks Clive. I gently squeeze devices with my Panavise and adding a little alcohol to get them open without tearing them up. But sometimes it doesn't work very well. The Chinese do make some pretty good adhesive.
Catching up on your channel, can't put it down. So interesting and your personality shines through. Great stuff thanks big man
F1 and F2 on the data pins are ferrite beads, which are used to suppress EMI. The control chip has a clock signal, so it is subject to EMI regulations.
If you want to turn kids off alcohol, don't do it with Jaeger. Give them a shot of SoCo.
I got a shot of SoCo when I was 13 years old. My grandfather loved it and being the Italian he was he didn't give a flying toss about liquor laws and children. It was so retched that I didn't touch alcohol again until I was...oh...probably 25 years old (My first, and only, hangover.)
As a note: SoCo is Southern Comfort. Not sure if the term SoCo is regional or not.
Southern Comfort is a whiskey with fruit and spice flavors. You can make a vile drink called Southern Dew that is SoCo with Mountain Dew. Mountain Dew is a green pop that is very sugary and caffeine laden. I'd love to see the Manx Beard Club drink this concoction favored by naive youngsters. Or even better yet force feed Ralfy it.
I made my boi smoke a whole carton of cigarettes when i caught him smoking, and ill you what......
It failed miserably
Southern comfort and pepsi tastes like Dr Pepper. Perfect for the kids 🤣
Heh... when we were 13 we'd make something we called "witch brew" and basically took a tiny bit from each of the bottles in our parents liquor cabinets and mixed it into one drink. Tasted like crap but got you drunk... and best of all the parents had no clue their liquor was slowly running out.
Southern comfort is a sweet, fruity, delicious and very child friendly liqueur, I discovered my mother's bottle when I was just a tot and had great difficulty keeping out of it. To this day I like it very much, very good mixed with five alive fruit juice, a drink I like to call a Michael Jackson as its light and fruity. You must have very unusual taste.
Use 'Google Lens' on the datasheet, tap the translate button. Works when I point at youtube on my computer.
Based on the board marking of "FB1" I think the component "JR" is a jumper encased in a ferrite bead.
Interesting. I noticed that the main inductor is named "L2". So maybe this ferrite bead is our first inductor.
Bigclive, brought to you by Jägermeister, jerky and disco LEDs!
Inspired by your good self, when I tried to resurrect my Samsung phone (GT-B2710, not that ‘smart’ but very rugged) and noted the bulging battery pack, I did some disassembly.
Sure enough, under the top is a circuit board with little electronic bits! Presumably charging control circuitry stuff..(my electrical knowledge is limited to a 12 month stint training as a BBC transmission engineer in the 90’s as a career break, before returning to medicine. Favourite transmitters were the BBC World Service array near Penrith, with a hall full of massive valve amplifiers. They carried some serious current.
I have therefore opted to buy an OEM 1300 mAh replacement battery rather than a no name 750 mAh for 60% the cost.
the items marked F1 and F2 are more then likely not fuses but SMD Ferrite Beads as there on the data pins to take out any interference.
Seen these in Morrisons too along with a smaller round one (presumably one 18650 inside)
Mole grips on things like that work well :) also use air duster liquid to cool it down a lot to see weak heat might work Clive.
I'm impressed with the capacity of these cells. They would be great for replacing the shite ones in my laptop. Great video as always, cheers.
I was thinking of making mine "user-replaceable", drilling a hole in the bottom of my notebook and then putting some spring loaded 18650 battery holders in there. As I have a LOT of 18650 cells, I could take some with me and replace them on-the-fly when they discharge, lasting all day long with battery charges.
The problem is: These battery circuits have a memory and save how much capacity the batteries have left. This would mean if I put a single pair of almost dead batteries in there, it would say that I need to "replace the battery" and it would never recover with that same chip, even if I put good batteries back. Basically: The chip does planned obsolecence for you. Nice, huh?
Damn.
@@fusseldieb An external battery pack would work..one that plugs into the normal charging port. GreatScott! has a youtube channel where he builds one and it could easily be scaled up to last a long time using many 18650s.
@@matakaw4287 I saw that video, but a notebook power bank is bulky. I just wanted to carry some additional batteries in my pocket...
@@fusseldieb It's all about safety.
@@matakaw4287 Nothing that can't be reverse-engineered.
Perhaps those two resistors make a voltage divider at the data lines to make some of the dedicated charging port controllers work at a particular charging scheme.
The data lines go to the chip via two fuses and the chip seems to deal with the charging output indication.
@@BigClive Ah, thanks! Also, thanks for all of this great material. I love learning and, as my mother said, there are no idiotic questions, just a lot of inquisitive idiots. Still not sure what she meant by that, maybe I should ask.
The controller IC internally modulates DP and DM to follow Apple, Samsung, and BC1.2 charging methods... As mentioned in the video, they are likely just fuses to prevent fires when bad things happen.
Does it have some quick charge capabilities? Data pins are used for communication about voltage in QC.
@@josifvissarionovich5320 No quick charge, it only outputs 5V. Many devices limit themselves to 500 mA unless they get a signal from the USB power supply that it can output a higher current. This is usually called "fast charging". The signal is provided over DP and DM (like is done by quick charge).
I love carnage and chaos and the smell of meltdowns in the morning.
"If your adult you'll like Jagermeister, well if you like Jagermeister" well spoken
The Aldi in The Netherlands and in Germany sometimes carries Mummelmann. It's jager-like but has a lower alcohol percentage and is smoother. If you're ever in one, keep an eye out for it. It's also cheap.
Yay, been looking forward to this one. As I’m considering buying one.
this video gave me an idea... I have a Bluetooth speaker that doesn't want to charge, I have shorted it with a faulty cable, but everything else works fine, just the charging...
I could scrap a double-cell battery similar to this one and use the circuit board to charge the batteries of the speaker ^^ it should work as long as the battery is 2S and its in series (because the batteryes of the speaker are in series. I think it matters)
I asked my electronics guru friend how to get a ultrasonically welded plastic case apart. He took the case from me put it on the concrete garage floor and hit it twice with a four pound dead blow hammer and it came apart exactly along the seem. Perhaps you should try using a dead blow hammer which are amazing and not very widely known about.
The IP5209 is a buck + boost converter, which only need a single inductor. If you charge this thing with 5V and 5.6Ah, then it will have ~26Wh (@ 96% efficiency).
Please don't confuse the electric charge of the cells (xyAh@3.7V) with the 5V in-/output...
I subsequently tested the cells external to the unit and it showed the higher capacity. So it is definitely bucking the 5V input to charge more efficiently.
Jager is delicious when it's frozen, also mixes very nicely with coca cola and Dr pepper.
Les analyses des différents produits que vous réaliser sont intéressantes ,mais le plaisir de destruction est immense.
C'est toujours bien de démonter des choses.
According to the datasheet:
The IP5209 supports D+, D- switching for Apple, Samsung and BC1.2 interface specifications.
D+ D- short USB dedicated charging port
D+ 2.0V, D- 2.7V, Apple 1.0A charging port
D+ 2.7V, D- 2.0V, Apple 2.0A charging port
D+ 1.2V, D- 1.2V, Samsung 2.0A charging port
The IP5209 can be set to the battery type via the VSET pin 23.
VSET floating, 4.2V battery
VSET to GND, 4.35V battery
VSET to VREG, 4.3V battery
LIGHT PIN can directly drive LED with a maximum drive current of 100mA
When LIGHT is not required, connect LIGHT to GND and IP5209 will automatically detect there is no LIGHT lighting function.
There is a I2C interface
Pin 1 = SDA
Pin 24 = SCL
incase people not understanding chinese:
It is an all-in-one BMS ic that
1) use only one inductor for boost and buck (charging the battery and boosting to 5V)
2) 2.4A max output, 2.1A max input
3) 14bit ADC for current and temperature measurement
4) build-in battery percentage feature for driving LEDs
5) can work with 4.2, 4.3 and 4.35V battery
6) i2c interface for advance feature
And, don't believe in Chinese made 18650 cells, most of them are overrated.
I'd suggest covering one of the battery banks where you supply your own 18650 cells. I have been thinking of getting one, but fear they are shit.
I stil have the higher Milamp medium size power bank with 2 usb port and it stil works well but the output and input label is starting to deteriorate
Since the LED output is most likely just a FET to drive the lamp, the only power that should get used when nothing is connected is only the power needed to wake up the controller and charge/discharge the FET's gate to turn it on/off.
'Indestructo-spudger' - Big Clive, enriching the English Language since forever...!
“The spudger is changing shape” 😂😂😂
Is it not odd that the cells were made by LG and not Duracell? I had always assumed Duracell handled the manufacturing of their stuff from raw materials through to retail product.
Capacity is strongly linked to the charge voltage accuracy. If it doesn't reach optimum voltage then it won't fully charge the battery. I would check the battery voltage during charge to see what it goes up to. They should all be using sub 1% tolerance voltage references. I'd test the batteries on a separate charge circuit which you use for capacity comparison tests.
I've just been notified about this video just there seeing it's 3 days old now
Guessing that's the patreon supporters getting it first.
Awesome video!
I'm from Wisconsin, we live on Jagermeister. According to Lewis Black, we're the only people who like it. But I am glad to see there's another people on the planet who do.
It's well regarded in the UP too!
@@bradley3549 Makes sense, my family came to Wisconsin via Escanaba.
If you like jagermeister I should ship you some beerrenburg. But I have no idea how to send it to Schotland from the Netherlands.
You can also find out if it has a step down circuit if you put your meter in series with the battery while charging.
Is the batterie current higher than the USB current you have a step down converter. If the batterie current is lower oer almost the same its a linear regulator.
I mean if you have the case open anyways than it makes sense to do so. If you dont want to touch the internals than the method with charging discharging is the way to go.
Might have been mentioned but F1 and F2 are probably to protect from USB killer devices
I'm always amazed at just how popular MREs have become these last 20 years, I thought I was the only weirdo that bought them up until the last few years.
Just an fyi in order for any device to enable the fast charge, quick charge, or many other fast charging technology there has to be data contacts. I believe it is for if the battery on the device or other components gets too hot the device sends out to the data connection telling the power supply to step down the voltage to standard charging 1 or 2 amp at 5 volts or whatever the standard charging rate is. Then once the temp get back down it will send out another command to step back up to the quick charge voltage and amps.
If I am wrong correct me as it has been quite some time since I have learned about fast charging tech:P
Dunno about fast or smart charching, but what i know is that a specific resistance on the data pins (or voltage, i don't know what the cellphone actually sense) tells to the smartphone what amount of current it can "take". Some values are standard, some other are brand specific, but if you connect 5V on a phone it will absorb just 0.5A (which is USB standard limit). With the right resistors it will ask more current, til 2.4A.
It interests me that these days charge is always measured in milliamp-hours, not in coulombs, which are technically the appropriate unit. 6400mAh = 1.7C.
The thing is that electricians and physicists use different units because these units are more easy to use for their purposes.
zh84 Isn’t Q I*t, giving Q = 6.4A*3600s = 23040C?
people should just use Joules instead, that's the interesting bit
@@jaccurtis5789 "Isn’t Q ... = 23040C?"
Yes.
Should use foot pound hours
Im german so ive had to endure my fair share of Jägermeister over the years. A cold shot can be quite pleasent but when people start mixing the shit with coke or energy drinks thats when I start reaching for the rum.
In a way this is worth it just for the high current charge/discharge for other electronic projects, and the 3300mAh cells - as 18650 cells above 3000mAh are rather expensive.
Those cells could be re-used in that "2 cell" (actually 4 cell) work style LED lamp if you don't have a use for them? As that would work nicely in there.
At 10:15. Are these the same 18650 batteries used in laptops?
Watching here from South Florida in the USA - Greetings!
Hey Clive, i know you read every comment, which ill say again, is crazy. i just wanted to say that at 13:30 you were having some trouble with the Chinese datasheet being in... well, Chinese. there are apps out there for your smartphone or even computer that can take a photo (or on your phone can literally in real time, take what your camera sees) and translate it into English. its absolutely crazy to think such technology exists, but yeah give it a go, the google one is the best I've found
Thanks. I do now use the translate app on my phone a lot more.
It's really pricey though. £24 on argos. I bought a "Bauhn" powerbank over a year ago from Aldi, it's 7800mah with two USB ports one standard at 1A the other for fast charging at 2.1 able to discharge both simultaneously too. The build quality is great, it has a torch, it has a 4 led battery read out, oh yes and it was £9.99.
+bigclive the F1 and F2 are most likely ferrite beads taking the edge off somthing coming off that processor.
Either you read our mind or you know the TH-cam algorithm
It's always nice to see Charlie-plexed leds
I think you've missed in yoru calculations that the mAh value quoted is usually at the cell voltage, rather than at the boosted 5V for USB since the mAh of the cells is higher (at 3.2 to 4.2 volts) than the mah of the boosted 5V you get as output... using total energy in joules is a far better measure
2:58 ...and my load, test load - the fact that you corrected yourself made it more funny!
Went looking to get one as it looked to be one of the better Power Banks you've tested but Duracell doesn't sell that model in the US it's a UK only product
It may be sold elsewhere in the same package but with different branding.
I prefer the power packs that open and allow your own battery choices. But I have no idea how well those charging circuits work or whether the stepped-down voltages are obtained efficiently. At least I don't need to either solder in a battery or throw them away when they fail.
They are only 4.8amp CDR 18650's. So thats 9.6amp 6700mah in parallel. Samsung 30q is a 3000mah cell with 15amp CDR. The price is VERY similar. Makes me wonder why this was the choice that was made.
In case anyone's wondering, the data sheet for the RZC8808S is here. It's a dual N-channel MOSFET.
www.rzcsemi.com/guige/mosfet/RZC8808S-V3.0.pdf