Fake USB power bank kit rating (100,000mAh again)
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- Опубликовано: 2 окт 2024
- It's not 100,000mAh, it's not 10,000mAh, the solar panel is mediocre and the output certainly isn't 2.1A. But other than that it's actually quite usable, and has an interestingly minimalist chip that manages charge, boost converter, status LEDs and flashlight LED all with just 8 pins. Note that there's no cell protection option fitted on the PCB so it's designed for reuse of standard phone batteries that usually have that protection built in.
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I'm actually surprised that the solar cell was an actual solar cell
I tried it outdoors in direct sunlight today and its performance was abysmal. I'm tempted to delaminate it now.
bigclivedotcom I don't think you've done a solar panel before?
Ha, that's worth a try. Never seen anyone do that yet. If you don't damage it, you could also try coating it.
bigclivedotcom
Would you use the knife of delamination?
I'm researching parts for a diy power bank, and finding many unreliable/nonperforming parts and would like some suggestions for use as a power bank during extended outages (as in locally Florida hurricanes). I have around 6 power banks some with solar cells and like the one reviewed, solar power output is abysmal. A suggestion for a future video "DIY power bank from off the shelf parts", or a new circuit of your design, if so inclined. Thank you for all that you do, and as always I look forward to your next video.
i never understood power banks having these tens of thousands of mAh ratings as opposed to tens of Ah ratings which would make more sense. that's like people around pro audio calling a 4K rig a 4 million milliwatt rig!
Even Ah are a crap measurement, Wh would be much better.
Because the dentheads that fall for this always assume bigger number means better, a 10 Ah wouldn't seem nearly as a 10000 mAh battery to the village idiot.
Yeah, Ah is sorta biased and most people don't fully understand it.
Wh is way more convenient, especially with fast chargers outputting 5/9/12V
well it looks more impressive to use thousands for one, and then its not like you actually can get 10A for 1h out of these, so i guess its also to distinguish from bigger batteries
@@Misha-dr9rh it does mean better as long as its a single cell device. and if you see a battery labeled in Ah instead of mAh, its probably not a battery bank. even that huge one i saw that can be used as a 220v source was labelled mAh (memory can be faulty so... not exactly sure but it was like 50000mAh or something. its just power bank standard at this point)
I know nothing about electricity or circuitry or even engineering, but damn does this channel make me happy everytime I watch it.
therealnightwriter only for you papi
I no alot I have a degree in electrical engineering and programming.
Big Clive is like Santa Claus...only a lot more entertaining and funnier. Also, he is not based in Finland, but on Isle of Man.
The metal casing, discounting the hole for the solar cell, reminds me of USB enclosures for PATA and SATA laptop hard disk drives from around a decade ago, including the end-slide feature and the roughly bookish shape.
Makes me wonder if someone was looking for a repurpose of tooling for such a previous product, added a method to punch the hole for the solar panel, and changed the endcap electronics.
You neglected to read the fine print. The solar panel will produce 100,000 mA...at the orbit of Mercury.
I appreciate the humor but oddly enough that is still insufficient assuming standard 5 volts and solar cell efficiencies of less than 100% (really giving them alot of chances here).
100000 mAh 😄....😂
Requires backpack not supplied. May pull trousers down if stowed in pocket which may cause illegal embarrassment. Users have been warned.
I never knew fresh air contained 100,000mAh of power... :P
Not fresh air; high quality energy dense eau de Shenzen.
It all depends :)
First mAh is not a measurement for power and not even energy.
To know the energy you also need to know the voltage but assumed here was a single cell LiCoO2 so 3.7V x 100Ah = 370Wh
Now air can store thermal energy not great about 1000x less than water so for that volume of air say 0.0001m^3 with the air thermal storage capacity of about 1.16mWh per cubic meter per degree Celsius or for that respective volume about 0.116uWh per degree Celsius.
So if you can increase the air temperature inside that power-bank by 3189655172 degree Celsius above ambient then you have stored 370Wh as thermal energy. Temperature is physically possible even if is about 200x higher than the Sun core temperature.
electrodacus duderama. Word!
how the fuck does "1000x less than" even calculate? What would be "1x less than", by your formula? Compare with "1 times more than" and watch your brain explode
Its "Zero point energy"!
My dumb ass watching this video despite having no knowledge of boards or power: “right, right, I follow”
I actually have a working 100.000 Ah power bank. It's parked in my driveway and stored in a car shaped case. Although it's a bit on the chunky side, it's mobility compensates for that. :)
I've been loving these "diy power bank" teardowns!
I would give my eye teeth for your knowledge on electronics. I know basic stuff from where I self taught in the 70's. Do you remember a monthly magazine called Hobby Electronics? I loved it, used to build their little circuits in a column called 'short circuit'. Would have loved to have gone into design type stuff but wasn't considered clever enough when I left school so never went further, deeply regret that, I got left behind with technology I'm afraid.
I would love to see you design a small simple circuit from scratch, a flasher circuit or mini op amp circuit and explain why the component values are such and what would happen if they were different values.
Just a thought, still loving these videos 😁😁👍👍
@bigclivedotcom You should use the live view of Google Translate, it does a really good job of translating Chinese and many other languages that would help with the datasheets. I used it to translate the one for this chip as a still in the video and it still worked. Great video ;)
I agree with this. I use Google Translate all the time.
I love this guy's voice. It's so calming
Go on marry him..
@@arisz2191 If he'd tell me a bed time story thrice a week, I don't think my wife would have an argument with my leaving her for Clive.
Same
I like to think he has kind of Bob Ross vibe
I have one just like this without the solar panel from 5-6 years ago that says its 20,000 mAh, I've already had a look in it and it is stuffed with 1 complete cell, I don't need it anymore if you wanted me to send it to you for you to have a look at? Fire containment pie dish may be in order if you want to have a gander at it :)
loving your dry humour in commentary, Clive..... even your YT descriptions like the one 'what is inside Eneloop or Lidl Batteries'? (Fire, apparently) made me chuckle out loud!!!!
To quote a great mind "Where's the kaboom? There was supposed to be an earth- shattering kaboom!"
I thought for sure Clive was going to hook the battery backwards.
Sean Not-telling love me some Marvin the Martian
Would there even happen a lot with protected cells?
I don't recall if he has done it but I would like to see a cell go bang. But with the right safety precautions
so that no one gets hurt. Tim- laps up to and slow motion for the kaboom.
Im not sure, but I dont think so. He has blown up a power supply, an easter bunny and a high voltage disconnector but I cant remember a lithium cell. Once he shorted a lithium jump starter that just puffed up and just after taking it apart it went on flames but that wasnt on camera.
I remember the jumper pack and the bunny but not the cap.Don't forget the light that he blew up too.
I think he should do an 18650 cell.
I don't think I'll be rushing out to buy one...
Spikey DaPikey
Is that because you'll be ordering online?
No, you'd just have to sit at home and order it on eBay.
Why not? ebay will refund you and youll get to keep it.
I actually laughed when I read the words "power bank" and "100,000 mAh" on the title.
theoreticly it could take a 100000 mah cell if you could obtain one :shrek:
Very good Clive,
I was given one recently with a similar (? Its buried somewhere I can't get to right now) board. I looked it over and concluded that I wasn't sure if I would trust it to manage 320,000 mWh of any kind of Li-on battery. Of course, I graciously accepted the gift whilst mentally asking myself if it was worth buying a battery to put in it :)
It must come from the same factory that makes the 800,000kV inverter that I reviewed 😁
Will that inverter power my delroean ?
It's not the volts that power DeLoreans, it's the amps.
well technically its the Jigawatts!
Expect Chinese merchants to be selling suitable flux capacitors to handle that power any time soon....
John - Orbiter 800MV ? That's more like a physics experiment. Could be built with ladder technology at really tiny current, like an overdone ionizer.
One problem of soldering to phone batteries is going to be gold embrittlement. That might be a relatively thick gold plate to withstand wear from battery removal and replacement. If so, the joint is going to be brittle. Especially with lead-free solders.
I always imagine my junger cousin be like:
"look at my new fancy powerbank! I can charge my I-Phone like five times!!! cool huh!?!"
amazing how well you describe your tear downs 👏
They should rate it a 2.5 MegaAH. (10mA x 5 billion years the sun has left x 1/2 for daytime only.)
OMG, mind blown! I just wrote in another comment that I find it quite dumb that all those overrated power banks come with a solar panel, but this explains everything!
For real lol
(2.5MAH not m it's M)
The output of this thing is really poor. It needs to at least put out two amps at 5 volts in order to charge a tablet. All the battery packs I have built can do 2.5 amps before they start to struggle.
I picked up a couple of 10,000 and 20,000 mAh powerbanks from Maplin before they sadly closed down 😢
They aren't even trying to fool us
How can such a small body be that high capacity?
You'd probably only get about 10000 mAh maximum
That case looks like it would be perfect for an external SSD......if you had the external connectors.
John Carr Not sure you'd ever want an external *SSD* case, that'd typically be a bandwidth choke point. But you can e.g. buy an external SATA case for around $3, USB3, which will happily take SATA SSDs.
Funny you should mention that. These cases are actually old external HDD cases for laptop drives from like 10 years ago. I have a couple drives mounted in some cheapo ones I got from a flea market back in 2009.
Fans of Birdemic will likely make jokes about the “slr pnl” (solar panel)
i had that exact power bank and one day the battery that came in it expanded a lot, had to get rid of it
That aluminium case looks rather like one of the slats of a shop roller shutter.
Just imagine how many times you could recharge your phone on a real 100.000mah. or use it to run your switch or something :P
I bought a couple of the 6x18650 powerbank kits (no batteries included, salvaged from laptop battery packs) and the rating on it is also ridiculous. Very hackable tho. I added an aluminum strip with 4x "1W/3W" LEDs from eBay, going straight to the battery in parallel through a low value resistor and a switch, and replaced the puny, PWM LED included with a laser pointer from a toy gun that just so happened to fit perfectly on the hole. If you move it fast enough you can see the ant strips from the PWM.
The power output does not quite reach the 2.1 Amp promised, it is closer to 1.75 A @5.00 V.
that multimeter is the same one at harbor freight but its a different color
Maybe it is 100,000 mAh and you just don't know how to use it properly?
Try using velcro to stick your lipos to the ample space available on the outside of the case..
Or a car battery :D
Chuckiele It requires a LiPo for the regulation chip to work. Circuit probably has a limit in what capacity it can handle, though it might not be 100Ah (4½ days charging time).
This looks like same thing Marlboro was giving away recently on their USA website as a "Solar Charger" let the irony of big tobacco being the honest ones here set in
never tested the other output. just assumed it would be 1 amp. I wanted to see you test both outputs to be sure.
Hey. I Actually have a reputable 16K mAh powerbank from a reputable company with similar dimensions. I double checked it, and even opened it and there are 4 smaller slims 4k mAh cells connected together. Its actually quite nice.
i was looking at these but shied away when i noticed there were like 10,000 variations of the same design
"oh hell no"
100000 mAh LOL that one is half the size of my 20000mAh powerbank
biggest problem with these banks is that. if y have 3.7 v cell y need to get over that 4.2v from solar panel to fully charge the batteries. That panel can output like 1.5v. Amps aint so big deal. it just takes longer to get full. but if y don't have enough voltage it just charges to like 1.5 v and stops charging.
I suppose this is for continental Europe, so 100,000 mAh means exactly 100 mAh :D
Против Глобал Your number has multiple commas and one period; Thus only one interpretation. The confusion is only valid with a single comma OR period followed by 3 or 4 digits (4 digits is for China).
Vu la taille de ce powerbank,ce se voit tout de suite,car il est impossible de mettre autant de lithium dans un si petit espace.
Looks similar to the "Lit Mobile" scam.
This is technically an unlimited mah battery because of the solar panel
I think close to 10000 is a realistic goal, not just 5000! Because i have a store brand battery (approx. 20-30€ list price, don't remember) that is that size and shape, same book style, same drawer, no solar cell, and it's got 9400mAh marked on it. I trust this store, and it appears to pretty much completely charge my 4000mAh phone twice, so it can't be that far off. The cell inside is HUGE, very tightly packed in there, it doesn't have much any space to move at all, and it's marked SONY 32 W US4069C4H 2 3583ED055VH12B. Mine can probably output 2.1A that are marked on the package, as it's the only power bank that i have that will power my Windows tablet - though it will get pretty warm. The tablet refuses to work off an older Anker also with 2.1A output, it's allergic to voltage slacking off.
I actually might already have a test load and charger doctor so i can test it more thoroughly.
Yeah i plugged in mine for a minute, it could do about 1.9A before voltage started dropping below 4.9... it's not the same electronics at all obviously as the enclosure that you scored.
You're cruel, Clive. Obviously they just made a typo, Chinese who don't speak or read Greek, who meant to say microamps hours. There's no "mu" character on my keyboard either. Cruel man!
Lyfan Deth 😂😂👍🏻
Sort of like how old capacitors are labelled in "MFD" for microfarads.
Even nanoamphours would be wrong, it doesnt even come with a cell xD
Errm no, theyre just liars.
You can modify the case to use as phone cover, it has a great screen opening at the top ;-)
Awesome, I was looking for a cheap alternative to the Tesla Powerwall.
the next powerbank i buy will just have 1 Ah but a solarpanel outputting at least 5 kW - cause pocket-sized solarpanels are of course that powerful =)
Had to search for this one, after I found that I had purchased one almost like it, perhaps an update, or a downgrade would be more accurate. OK now the auction said you had to add a battery, I am used to doing that on powerbanks, as I have a quite of collection after watching your videos got me all interested in building them up from old laptop batteries. The one I got looked good nearly like one I already have that coste me 3 times the money, but had batteries in it, so I ordered it. It came in yesterday, what I got was a zip lock plastic bag with all the plastic components loosly tossed in, 4 tiny screws, the circuit board, and a board for the LED's. All that was assembled was the circuit board. Not a major problem, but that plastic looked so flimsey that I would not trust a childs toy built with it, but oh well it only cost me 7 bucks. There were no instructions, and you needed to furnish all the wiring since none was included, not a major problem I have lots of wire. So I put it all together assembled the case and pressed the button. NOTHING, well I know most of these require hooking to a power supply to activate the chip (I had installed a LIPO bag type battery claiming 3000 mah taken from an old tablet) So I plugged in the mini usb, and the smoke she rolled out! I quickly pulled the plug and tore her apart, expecting to see melted components, but I was lucky. One transistor has a blister on her, of course there is no marking on it, but a close inspection showed a tiny solder bridge across one of the surface mounted capacitors. I heated up my iron and cleaned that, then stuck the USB back in the socket and she began charging. I now have a working device, it may make a nice flashlight, and if I can find a couple more bag batteries, I think there may be room for at least one, perhaps 2 more, but for now I am happy that I can get some use out of the piece of crap. Here is that auction: www.ebay.com/itm/DIY-Waterproof-500000mAh-Power-Bank-2-USB-Solar-Charger-Case-LED-No-Battery-wo/282823276587?ssPageName=STRK%3AMEBIDX%3AIT&var=582167381790&_trksid=p2060353.m2749.l2649
I have a genuine version of this bank at home, it claims 10,000mAh, and I've tested it out to about 11,500mAh so that's a good result on it. Most banks give you the capacity of the battery without converting for the loss due to stepping up to 5v.
I don't know much about electronics, but that's a clever design from the mechanical point of view 👍🏼
I was waiting to see the glow bugs jump out like on james and the giant peach
At least it's an actual solar cell, I've seen more than a few that say ''with solar cell'' but it's actually a sticker. Most ''solar'' calculators are like that.
Oh mine has that stupid flashing crap too, on the 9 LED's a real pain in the ass!
I bought one of those without the solar panel. It claimed it was fifty thousand mAh but in reality, it was five thousand. Sent the seller a message and got a full refund and they politely asked me not to say anything to eBay. 😯
That might be what I need for my robot...
I purchased a "kit" from China last spring, it has the same board, but fully populated, one side has the solar charger, the other side has 9 LED'S soldered onto a while board with a translucent plastic cover to disperse the light. At the top is one of those pretty much useless magnetic compasses which might have appealed to me before the days of cell phones with built in direction finding devices. Actually the compass seems to work when out doors and away from the electrically charged environment of my chair/workbench/living-room corner. When I assembled it, I put in one bag type lithium battery recovered from an Android Tablet, when the discharge proved a bit to short, I added another of the same size, after charging both to 4.2 volts. The only real problem I have had was the 4 charge LED's, two of which have fallen off the board, being the two that indicate a full charge, I think I shall have to take her apart once more and replace them. The light is quite bright and will illuminate our living-room well enough that one can walk without tripping over things during our most recent power outage, so it is good for that. The blasted charging light comes on almost all the time when any light at all is visible.
The solar panels in these devices are useless because when the charge indicator LED lights it will actually discharge the cells. I bought two kits, and built a unit with LED panels on both sides. It's a useful little "box 'o light".
i thought on those cell phone batteries you had to use the middle pad somehow for the protection circuitry? is that not right and you can just hook up the + and - to anything and the protection circuitry will work? if so what is the middle pad used for?
How hot is too hot for the cells? It's 29c and sunny here, leaving one of them in the sun would toast it I think. I have a few solar capable usb banks but not put them in the sunlight for fear of damaging the cells.
I wouldn't recommend putting any powerbank out in direct sunlight, including at a window. It will at the very least shorten the life of the cell and at worst cause it to fail.
Cheers Clive. That is exactly what I thought! Most of the windows here block quite a bit of UV too (not sure if that would affect how well the solar cell works? but they still get bloody toasty!) So all these solar cells are really just a gimmick? Besides degrading the cells you'd need an awfully long time at 15mah to charge the magical 100,000mah battery, especially in the UK with the sunlight there.. :D
Don't forget that ordinary glass changes the wavelength of UV light to infra-red. That's why it always feels hotter under glass and why the glass itself feels hot in direct sunlight. It's the principle used by hothouses or glasshouses. So, if you want to use the cell for charging, it's either direct sunlight or under some artificial light.
Out in the sun here would melt the battery :D never bothered with the mini-solar cell chargers for this reason... maybe if you were out camping and could leave it in a sunny but cool place all day it might help a bit but in such a case i think one of those usb generating fires is probably a better idea... i wonder why they still make them with solar cells and if anybody actually uses solar to charge these large banks??
I live in Sydney where 40 degree days in Summer are not uncommon. 30 plus seems to be the average now. A few months before Summer, I bought some solar lights that sit atop 50mm square posts. One day, I took them in after a row of hot days to see how they were coping. The batteries were fine but the hot glue under the solar panel that was used to waterproof under it had melted and some of it dripped onto the batteries. I managed to get it off and I recharged and tested the batteries with a Nitecore charger. They were fine.
Of course, they were Ni-MH rather than lithium but Duracell are making solar lights with lithium batteries now.
Anyway, my big problem was actually with rain. Because they are flat, rain drops sit on their top surface after it rains. I thought as the drops dried off they were leaving residue behind but it was worse than that. The resin covering the solar panels was actually going opaque, probably due to contact with water.
I also have a solar panel with a USB connector attached. It was supposed to deliver 5V but it does bugger all. It also has a resin coating. So I don't think the problem is with the coating so much as what they're making the silicon component out of.
To make a Big Clive powerbank, one must first paraphrase Jaws:
"We are going to need a bigger book".
Would baking the solar panel maybe help fix the bonds or damage it further?
It turned out that the panel was too flexible and there was cell damage. It'll be shown in a video later this week.
I bet a 10,000mAh would fit. I've seen some a little bigger than that 5000mAh.
Only 100,000mAh? ahaha, Mine is 2,000,000 mAh
You got me thinking about books here...
Could you stick that solar panel in a large book and compress it to make those connections?
And if so, could you then coat the solar panel with some clear epoxy or similar substance? Clear, suitable for use on electronics, etc?
mister bigclive do you recommend any powerbanks? i'm going on a trip to norway,and i was thinking going for the "Aukey 30000mAh PB-Y3" reason for the big charge is well i got a plane ride ofc. and my S8 needs some juice; and norway is pretty cold so battery life might be a bit low,hope you or the community can help me out thanks!
bigclivedotcom what protection circuit could you recommend to add in for unprotected cells
Last week my supermarket has a ridicolous offering: A solar Powerbank for hanging into your carwindow. I Wonder If they can blow Up due to tempaerature...
I purchased a few of these type solar panels last spring.They are terrible.After 7 hours outdoors at about 70 degrees during initial testing they began to form bubbles under the clear top layer and lost some output.After about 2 months of only being put outside for 4-6 hours on saturdays they completely delaminated.I learned my lesson then about ebay solar panels from china or at least this style panel.I did have good luck in the past with monocrystal (aka blue crystal) panels from china that have lasted 5+ years and still work great.
I’ve gotten my hands on a number of little power banks with solar panels… I’ve always been disappointed, they’re usually worthless when it comes to trying to actually charge the bank… might keep the LED working?
Hmmm actually I'm interested u put big load on one of the sides but what will happen if u put on booth ?
We-ell.. technically it might be 100 amp hours at 0.1 volt :) - AH is a really silly way of measuring storage capacity, watt-hours or kilowatt-hours would make a lot more sense.
I'm going to replace my car battery with that. :-)
over 9000!!!!!
I have learned so much from these videos. Thanks.
This upload worked OK for me, although I had to restart my PC to get the video running. Your care with focusing is much appreciated.
I also had to reboot my PC to get this going, very strange.
No problem here.
That's odd. I wonder why.
I'm watching on my tablet and it plays fine.
Your audio is clipping. Reduce the gain during recording.
I picked up a 15,000mAh unit with battery, but haven't checked capacity. $18USD. Yeah, it would take weeks to charge to mfgr stats eh?
Say, Clive, is this one of your circuit drawings? xkcd.com/730/ It felt so familiar...
Could you do the JDB Quick Charger on Amazon for about $7. It claims to have 2.4A for 3 usbs and Quick Charge (5v 2a, 8v 2a and 12 1.5v) on one port, I already purchased one arriving thursday but want to see how its built
hi, how do you test the batterry by charging / uncharging? is there any device or method? thank you, and love your videos by the way
I discharge it completely and then recharge via a USB energy monitor. If there is no active buck circuitry inside it gives a good indication of the cell capacity. If there is active circuitry I attach to the cell directly.
And now there are sellers on ebay claiming a capacity of 10000000mAh (I had to count those zeros carefully - that is 10,000,000mAh). They claim a charging time of 10-12 hours ...... where is that burning smell coming from?
My new battery will obvs have 1000000000000000000000000000000000000000000000000000000000000 mah
10^60 mAh is quite a bit.
Great counting !!! LOL
If you live in China you could ever say my battery is 8000, 0000, 0000 kva
Hi clive, not sure how to contact you other than commenting on here. Can you help me with something....
I have (or will when i build it) a 8.4v lithium cell pack, and was wondering if you can addvise me wether or not the maypole 7423 charge can charge this pack safely. The manual can be found here www.maypole.ltd.uk/mp7423-4A-6-12v-electronic-smart-charger
Much obliged if you have the time. Thank you and keep up the great work!
I've had 2 of these powerbanks, both with cells already fitted. One said 100,000 mAh, the other sais 5,000 mAh. Both of them had large cells, almost fitting the entire space available, with the traditional silver coloured cell, with blue tape at the connections.
I never buy random electricals off websites like eBay or chinese eCommerce sites. if you want a good power bank use a brand called Anker they make REALLY REALLY good power banks and cables and they even do audio products such as bluetooth speakers and wireless earbuds which they sell under the Sound Core brand (never used their audio products but as for their cables and power banks they are AWESOME and fairly priced)
Anker even has good customer service a few years ago I bought a Anker brand braided lightning cable off of Amazon which came in a faux suede leather style wallet but the braiding on the lightning connector had come out of the connector housing during production or something I wrote a bad review on Amazon and they then send me TWO replacements for free with next day shipping and I didn't even write a complaint to Amazon or ask for the replacements by then but the cable worked fine and after almost 2 years it was STILL working even though because of the slightly damaged lightning connector the wires were slightly exposed (it probably could have lasted longer but I lost the cable so I don't know how much longer it would have fared)I bought one of their 20k Mah power banks when I was in college and was using it regularly until I left college in 2016 and had it until like 2017 then my uncle took it off me when he went abroad but he ended up losing it and I am considering buying another one from them (I haven't had much of a need for a power bank since I got my last one because besides work and shopping and going to family and friends houses I don't go out too much especially enough to make me need to charge my phone on the go but after corona virus ends I think I may start using one regularly again when I start going out)
Rule #1: *Don't buy from assholes* (that are undermining our ethic standards with bizarre lies). EVERY buy normalizes this bad behaviour.
That looks like the exact design of my Fuse Plus You 7757 (terrible name) power bank that's only "5000mAh" but stuck in a different case with a crap solar panel on the side.
I love these videos it helps so much and fun to watch 👍
I have the same kit and I found a 8000 MAH cell that fits it perfectly. No room for a larger cell. The other LED is used to show when the solar panel is charging. Maybe the batteries that you are using are too weak. Mine will charge at over an amp and still maintains 5 volts, but not much over 1 amp.
Bigclive the best battery bank hands down that ive ever had is the xiaomi 10000mah power bank (The black one with micro usb). That baby really is what it is meant to be :) Not to mention it costs freaking 14€ xd
do you ever wonder why the real power bank which can measure exactly 10k, 20k or 100k mah never exist on your test? because 10k mah does meant to measure like that. your measuring only around -600 t0 600 mah because that's all device can got charged.
The 100,000mAh is aspirational: they hope that it will supply that much over a lifetime of charging and discharging...
That SY3511 data sheet says it has a LIGTHT LED - WTF is one of those!
@bigclivedotcom - it appears to me the 2 solar panels are different technologies - TFS or Thin Film Silicon, and the other is a CZ ( can't tell if it is single-crystal silicon or polysilicon ). The two technologies have very different spectra responses. It is possible they would respond better outside. Because, depending on your inside light source and its spectral content, one solar cell/panel will perform better than the other ( I think the CZ or polysilicon is more responsive to blue and the TFS device has a better response to red ).
My co-worker had one of these. It was labeled 100,000 picowatts!! I just started laughing.
Oh my God, that tiny battery, ahahaha
I bought one these before I found this smart guy,annnd it's junk,battery wrapped in silver is ok,the solar cell jumk
If I'm not mistaken 100,000ah at 3.6v = 360kwh.
Should power your house for a few weeks.