A look inside another solar USB power bank.

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  • เผยแพร่เมื่อ 12 มี.ค. 2016
  • I bought another solar powered USB power bank on eBay to see how the capacity and circuitry compared to the previous one. Interestingly this one had a marked chip in it that even yielded a (Chinese) data sheet.
    www.sz-hxdz.com/uploadfile/pdf...
    Notable things about this unit are the 2400mAh cell (supposed to be 5000mAh), 1A total output between two sockets and overcharge protection on the solar charging as well as the USB charging.
  • วิทยาศาสตร์และเทคโนโลยี

ความคิดเห็น • 247

  • @taristinshadowscale8971
    @taristinshadowscale8971 8 ปีที่แล้ว +70

    Feature
     Discharge Output : 5V / 1A
     Charging current: 1A
     efficiency: 91% ( input 3.7V, output 5V / 1A)
     BAT discharge voltage : 2.9V
     selectable 4.2V / 4.35V charge voltage
     The maximum standby current 25uA
     intelligent temperature control and over-temperature protection
     integrated output overvoltage protection, short circuit protection , overloading protection
     integrated overcharge and over- discharge protection
     support trickle charge mode, and zero voltage
     Support flashlight function , maximum 100mA output
     Package : SOP16
    ^ Google translate of that section from the PDF File

    • @PV2Omni
      @PV2Omni 8 ปีที่แล้ว +2

      Thanks!

  • @locouk
    @locouk 8 ปีที่แล้ว +12

    You provide quite a service here on you tube Clive, I don't think anyone can have too many powerbanks.
    Cheers for the info.

    • @stridermt2k
      @stridermt2k 8 ปีที่แล้ว +6

      +Green Silver -or solar lights
      -or crazy industrial crap
      -or death-prone devices of any kind
      It is wonderful.

    • @queazocotal
      @queazocotal 8 ปีที่แล้ว +2

      +Green Silver At some point the chance of one of them catching on fire reaches unity.

  • @GadgetBoy
    @GadgetBoy 8 ปีที่แล้ว +11

    the google translate app can't live translate chinese (yet) BUT, you can take a picture, and it'll translate from that. It works quite well

  • @zarphus8087
    @zarphus8087 8 ปีที่แล้ว +2

    i have that same one, and it's not terrible. it suffers the same flaw as another you 'reviewed' and shuts off if it doesnt draw enough amperage. the plus sides is that for about 17 USD mine is definitely about 3000mah, advertised 5000. like so many chinese power banks, the cell inside will vary depending on the seller. mine doesnt have the same black wrap. my phone can draw about 900ma consistently, which is common for my moto E. i can feel the cell inside beginning to bulge only slightly after repeated uses, and i may discard it, or replace the cells soon, just to be on the safe side. as for solar charging, it's nearly pointless unless you leave it in a windowsill all day for several days. that said, it's enough to get you a little extra use in emergency situations.

  • @Psycho1011000
    @Psycho1011000 8 ปีที่แล้ว +11

    4.35V cells have the same basic chemistry as the 4.2V variants. Both are available in ICR chemistry, which has a cobalt electrode ( prone to thermal runaway if not protected and mostreated).
    There are "safer" chemistry cells available in 4.2 V form. IMR, INR and NCR to name a few, all with varying materials at the cathode.
    The newest safer chem cell that you may have been referring to is LiFePo4. Voltages for these are very different. They're a 3.2V nominal, 3.65V peak chemistry.

  • @CookingWithCows
    @CookingWithCows 8 ปีที่แล้ว +1

    I bought one of these (apparently) after watching your video. Now 3 weeks later it arrived. It's good to note that, like yours in this video, mine has the button on the left side and the squares pattern on the back. where as the one with the short circuit in your other video has the button on the right and has a hexagonal pattern on the back. I hope mine lasts a good while :p I bought it from a different seller than you since I couldn't find the one you mentioned, and I bought 3 different banks, the solar one, a single battery one and a double

  • @deepspacemachines
    @deepspacemachines 8 ปีที่แล้ว +1

    That datasheet... you just experienced the power of the Big Firewall!

  • @hedgehog3900
    @hedgehog3900 8 ปีที่แล้ว +1

    I understand about a tenth of the technical stuff but you have piqued my interest,thank you :)

  • @seanet1310
    @seanet1310 8 ปีที่แล้ว +5

    The Chinese have been producing lipo (lithium cobalt generally, LiCo [so a different chemistry to the standard batteries] ) cells for charging at 4.35v for a couple years now. They are often advertised s 'high voltage lithium polymer batteries'.
    I have not paid too much attention in the last year or so but In 2014 there were a few concerns around that these new cells chemistry are more subject to thermal runaway and very touchy to over charge so not ideal for use in standard consumer grade equipment but things may have improved.
    Didn't know they had heavily expanded into the consumer market to the point stand alone chips had incorporated this functionality to the design but maybe it is future proofing but guess it was inevitable now they are available in standard packages including 18650 and the flat wafers [as in this device]
    Claims beyond a higher charge voltage is lower voltage sag compared to a normal LiPo, higher voltage density (similar current capacity for the weight but higher voltage) and high sustainable discharge rates.

  • @king_dwarfius7058
    @king_dwarfius7058 8 ปีที่แล้ว +37

    I was going to by one of these then realised what's the point I live in Wales...

    • @chems
      @chems 8 ปีที่แล้ว +2

      +RedMexican try living in canada where the sun doesn't come up at all XD

    • @stevenking2980
      @stevenking2980 8 ปีที่แล้ว +2

      Buy one, send them to me at the beach in North Carolina, and I'll charge them for you. :)

    • @king_dwarfius7058
      @king_dwarfius7058 8 ปีที่แล้ว +1

      chems I like the cold so I wouldn't mind living in canada :)

    • @chems
      @chems 8 ปีที่แล้ว +1

      RedMexican ME TOO i sleep in the basement during the winter it gets to like 15 degree C or ~60 degree fahrenheit

    • @AwsomeVids83
      @AwsomeVids83 7 ปีที่แล้ว +1

      killer chemstar 60°F? Thats fking frigid! Here in southern California we bundle up if it goes below 70.

  • @EnricoConca
    @EnricoConca 8 ปีที่แล้ว +1

    The 4.35V cells are the new style that comes in modern smartphones and laptops. They have a 3.8V typ voltage and 4.35V full charge. 18650 are available from Samsung (ICR), Panasonic (NCR) and maybe others.

  • @Barrybados
    @Barrybados 8 ปีที่แล้ว +1

    It works real well, thanks clive for another great review - strip down

  • @Tangobaldy
    @Tangobaldy 8 ปีที่แล้ว +1

    same as the one in home bargains for £5. takes 15 hours to charge battery off full sun so pointless in this UK as it takes weeks to charge most of the year. summer time you may get it full charge in 2 days if your very lucky

  • @AttilaAsztalos
    @AttilaAsztalos 8 ปีที่แล้ว +1

    My favourite (mis)translation so far (using Google Translate on an Android phone, simply by pointing it at the video and clicking "take picture"): APPLICATION: BACTERIA (last row on the right)

  • @MYNICEEV
    @MYNICEEV 8 ปีที่แล้ว +1

    If it had the stated capabilities. Then it would be awesomeness in one packege. It's a shame it's not. Awesome video my friend.

  • @sannytima807
    @sannytima807 7 ปีที่แล้ว +1

    I am planing on buying one but I still need to check on some reviews.. nice video..

  • @yagoa
    @yagoa 8 ปีที่แล้ว +1

    Black should allow the heat to pass to the other side of the cell and help slightly sink the heat if it is in sun for a longer period

  • @havefaith96
    @havefaith96 8 ปีที่แล้ว +1

    Thanks for another great upload!

  • @AureliusR
    @AureliusR 8 ปีที่แล้ว +1

    That resistor is there so you can choose whether or not you want the USB data negative referenced to the battery negative or not

  • @whodatdere1
    @whodatdere1 8 ปีที่แล้ว +1

    I have been developing and implementing higher capacity lithium cells into newer solar/light projects lately and found that most cells that have a capacity over 2800ma, are generally needing the 4.35v charge rate now. Threw me for a loop at first.

  • @sebimoe
    @sebimoe 8 ปีที่แล้ว +1

    Hi Clive, the Chinese you wondered about seems to state the efficiency, input and output voltages. I'm not sure, I could only recognise half of the characters (ratio, input and output) - if you have anything that you want translated, if you hold it up to the camera, I'm sure someone in your audience will know the language :)

  • @benryves
    @benryves 8 ปีที่แล้ว +1

    The Bing Translate app supports live camera translation from Chinese to English, could be worth a look if you have to deal with Chinese datasheets often.

  • @ChaplainDaveSparks
    @ChaplainDaveSparks 8 ปีที่แล้ว +1

    Chinese datasheets are interesting. Some of the Chinglish (Chinese-English hybrid) listings on Ebay are funny, too. I saw a listing for some (probably knockoff) Wago connectors. It made a mention of "September 11" (a sad day in American history). I was puzzled until I read the description of another seller's listing which said "strip 9-11 mm. of wire". Sounds like auto translate with a touch of auto complete...

  • @100SteveB
    @100SteveB 8 ปีที่แล้ว +1

    I always find that shadows are softer with the warm white leds. More of a contrast with the cold white.

  • @strongforce8466
    @strongforce8466 8 ปีที่แล้ว +1

    sounds like we going to need a chinese translator :D, thanks for another great video.

  • @RambozoClown
    @RambozoClown 8 ปีที่แล้ว +1

    Google translate on Android was even able to do a rough translation by pointing the camera at your paused video. Rough but serviceable. It couldn't do the real time trick (which is an amazing feat, when it works), but the standard scan returned mostly Engrish.

  • @picobyte
    @picobyte 8 ปีที่แล้ว +1

    Somehow I don't like putting lithium cell powered devices in full sunlight.The combination of solar cells with Lithium cells is really A no-go. Especially in warmer countries.

  • @maxximumb
    @maxximumb 8 ปีที่แล้ว +1

    Clive, Google translate works well. Copy and paste the Chinese characters in and you get a pretty good approximation of English. Enough that if you can read a datasheet, you can understand what it is trying to say. Here is the top section of the TP4351B page you showed...
    Outline
    TP4351 It is designed for mobile power supply design The synchronous boost Single-Chip Solution Programme summary, Internal integration Linear Charge management module,
    Synchronize Discharge management module, Power detection versus led Indication module, Protection module. TP4351B Built-in rechargeable And discharge power MOS, The charging current can be set, The maximum charging current 1A, Synchronous Boost stand by 1A Output current. TP4351B Integrated temperature compensation, over-temperature protection, over charge and over-discharge protection Protection, output overvoltage protection, Output overloads protection, Output short circuit protection, such as multiple Chip security features to ensure the safety of lithium-ion batteries and, Simple application circuit single, Elements can be achieved with minimal management charge and discharge management.
    Features
    Discharge output:5V / 1A
    recharging current: maximum 1A
    effectiveness: 91% (enter 3.7V Output 5V / 1A)
    BAT Discharge voltage: 2.9V
    can selected 4.2V / 4.35V
    Charging voltage maximum 25uA
    Standby Current Intelligent temperature control and over-temperature protection
    Integrated output over-voltage protection, short circuit protection, Overloading protection
    Integrated overcharge and over-discharge protection
    Support trickle charge mode, and zero voltage
    Support flashlight function, Maximum output 100mA
    Package: SOP16
    application mobile power

  • @tengelgeer
    @tengelgeer 8 ปีที่แล้ว +1

    You can just input the PDF into Google Translate. You can't use the link but you download the PDF and can select "translate a document". :)

  • @sparticus214
    @sparticus214 6 ปีที่แล้ว +1

    Actually sir this product inspired me to make my own dodgy electrical work.

  • @nutlock2857
    @nutlock2857 8 ปีที่แล้ว +1

    Hi Clive
    thank you for another brilliant video
    have you ever thought of studying for a radio ham licence?
    the IOM is a very sort after place for DX contacts!!

  • @alexanderthomas2660
    @alexanderthomas2660 4 ปีที่แล้ว +1

    If you think the lower battery capacity is bad, it can be even worse!
    I bought something that looks exactly like this, but it has a FAKE solar cell. It is pretty well done, they have hidden a photoresistor in the middle of the ‘cell’ such that an indicator LED can respond to the incoming light. A closer look at the cell reveals it is just a texture printed on top of plastic, and shining a small flashlight makes it obvious that there is only one tiny spot on the panel that responds to light, the flashlight also makes it easier to see where the photoresistor is. From a rough capacity test, the battery seems similar to the one Clive shows, at most half of the advertised 5000mAh capacity. The eBay seller was not to blame, he was obviously unaware of this scam because he refunded the whole amount immediately after I notified him.
    Maybe I'll send this thing to Clive for him to educate the general public…

    • @alexanderthomas2660
      @alexanderthomas2660 4 ปีที่แล้ว

      I have further investigated this and the PCB is specifically designed to build power banks with either a real solar panel or a scammy fake one with photoresistor. There are two pairs of ‘SUN’ contacts, the ‘SUN-’ and ‘SUN+’ are meant for a real panel, the ‘SUN2-’ and ‘SUN2+’ are meant for the photoresistor. The latter pads connect the resistor directly to the battery through the same indicator LED that would normally light up according to the voltage across a real solar panel, making it slowly drain the battery when sunlight impinges on the sensor. There are pads on the PCB for the diode needed to mount a real panel.
      I can turn this into a real solar power bank by swapping out the scam panel with a real one (I'm going to try to find one where they tried to cover as much of the surface with actual cells, instead of using the smallest cell bits possible) and adding the diode. It will still be a dodgy design because as is the case with pretty much each of these cheap solar power banks, the panel will go straight to the battery without a protection circuit and it could potentially overcharge, but I can mitigate this with a beefy 4.3V Zener across the panel. I have also considered connecting the panel to the USB input which would have the benefit of letting the IC handle the overcharge limit, but this will probably cause too much loss of efficiency due to the stupid LEDs stealing juice from the panel.
      Also notable is that the original models of this bank had 4 LEDs while many of the newer ones have 5. This is also a typical borderline Chinese scam because as you can see from Clive's datasheet or the datasheet of the Hotchip HT4936S in my power bank, these ICs only have 4 LED outputs. They simply duplicated the lowest indicator LED to make it seem as if the power bank still has 40% charge when the IC is actually saying it only has 25% charge left. I removed this redundant LED, which has the additional advantage of slightly less wasted current (the LEDs only draw 3mA each though).

  • @chadholmes7051
    @chadholmes7051 7 ปีที่แล้ว +1

    Hello Clive love your vids just a thought on the colour thing indeed a black object will absorb more heat than lighter colours from a radiant source eg sunlight but the flip side is it can actually reject heat just as well as it absorbs it for example they make many condensers on refrigeration systems black or darker colours as it actually improves the ability of the coil surface to radiate heat like the guys in the desert in black loose clothing you would think there bonkers but they actually lose more heat on there dark side than they absorb apparently... But to be honest I doubt the wonderful folks in China were thinking that it was probably more a cas of the cheapest heat shrink they could find at the time ;) As a side note growing up I remember we had a fridge that was nothing but trouble on a hot day it would shut down apparently overhearing compressor but fine otherwise when the weather was cooler we had a bloke look at it and the first thing he said is paint the condenser coil black so dad cracked out the spray can and presto fridge never played up again.

  • @stridermt2k
    @stridermt2k 8 ปีที่แล้ว +4

    I like it.
    Ordered one to play with.

    • @sparticus214
      @sparticus214 6 ปีที่แล้ว +1

      Michael Thompson Yes sir even though it's ballox in that the solar panel is not charging shit, you can actually make it work as a solar charger as the panle does produce 5w with 6volts. By using a diode I was able to connect the panel to mains input.

  • @christothegreat1
    @christothegreat1 7 ปีที่แล้ว +1

    The instant Chinese translator app should work fine in the uk, two other uk tech guys use it on their videos, their channels are TechMoan and Julien Illet

  • @cremationpete
    @cremationpete 8 ปีที่แล้ว +1

    Aww Clive I was hoping for another dirty opening...and possibly a cheesy end!

  • @skygamer155
    @skygamer155 7 ปีที่แล้ว +1

    I have the same one 😱😝! Thx for this video

  • @ASTMA193
    @ASTMA193 8 ปีที่แล้ว +1

    Interesting stuff. Cheers

  • @boonelakedude
    @boonelakedude 8 ปีที่แล้ว +1

    Wonderful, extra bonus video during the week. Woo-hoo!
    2 thousands of a cent ($0.002) x 1 million sold= $2,000... possibly a reason to include only 2 of 3 screws.

  • @cbm80amiga
    @cbm80amiga 8 ปีที่แล้ว +1

    Clive, to translate Chinesse datasheets I always use Google Translator - web version (translate.google.com). Just open pdf file then copy and paste text you want to translate. It works pretty well.

  • @bitelaserkhalif
    @bitelaserkhalif 7 ปีที่แล้ว +1

    exactly to what i used to had!!! 5000mah fake cap, but mine is green.
    now component is resalvaged by me (not including battery) :)

  • @HattmannenNilsson
    @HattmannenNilsson 8 ปีที่แล้ว +1

    If the Chinese text in the datasheet is stored as the Chinese characters (as opposed to every page being stored as one or more bitmaps) you could probably just copy the text straight from the PDF and paste it into Google translate. That way you don't have to try to photograph the printed pages and rely on OCR as Chinese characters can be quite complex, and I imagine there is a greater chance of misidentification in the OCR process. Especially if the image is slightly blurry and/or noisy.
    Good luck, and let us know if you find anything of interest. :-)

  • @yyessirr
    @yyessirr 8 ปีที่แล้ว +1

    hey clive it would be really cool if you like stress tested items like batteries and capacitors and stuff like that until they pop that would be very interesting to see

  • @kvfive
    @kvfive 8 ปีที่แล้ว +1

    Thank you Clive, I ordered one :) charges the iPhone 6 from flat to full fine, iPad Air 2 only gets about 20-25% charge though.... For obvious reasons :) they sell a 12000 mah version of this... Interested in that also.

    • @bennylloyd-willner9667
      @bennylloyd-willner9667 7 ปีที่แล้ว +2

      Love the way you use KmAh as unit, 16 thousand milli, maybe just write 16 :) no offense meant, just a fun observation :)

  • @0PAIx
    @0PAIx 8 ปีที่แล้ว +1

    Hello Clive,
    If you can highlight the Chinese text of the PDF datasheet in, say, Adobe Reader, then you can go to Google translate and paste it into the translate box and hopefully . . . Chinglish . . .
    Thanks again for the videos

  • @basingstokedave4292
    @basingstokedave4292 8 ปีที่แล้ว +2

    clive if you were to get a good one do you think
    you could use it to run outside solar lights , guess would have to put a light sensor in line ?

  • @joannewhilde7359
    @joannewhilde7359 6 ปีที่แล้ว +1

    Won 2 of these off some advert and as chargers they are utter dire. I have a Blackberry Priv and it discharges still with one connected unless I switch off and leave it. Solar Charging is pathetic but...... flashlight is only but a double click and it works! Its built in so a better LED me thinks!!!

  • @zerocool2004
    @zerocool2004 8 ปีที่แล้ว +1

    I have this one its alright. Needs a good sunny day to charge though

  • @WhiteWolfArkis
    @WhiteWolfArkis 8 ปีที่แล้ว +1

    Hello Clive. I must say I love watching your videos even thoug I don't understand electronic components at all.
    For me, as a total newbie it is sometimes hard to understand if the item in the video is wrong (either crap or dangerous) or it is actually usable. I understand the basics how electricity or usage of Ah but I have no clue what are you talking about when you disassembly the board.
    Can you please recommend me some cheap (eBay) power bank? I know it won't ever be as descibed by the seller and that they are cheating the capacity but I don't want the solar power bank to burn out my devices or to explode the battery while overcharching.

  • @umbrefawx
    @umbrefawx 8 ปีที่แล้ว +1

    4.35 volt lithium ions are newer cells, most cells phones and "some" tablets have them. My galaxy has one. They charge just like the standard lithium ions and lithium polymers, just a slightly higher charge voltage. Thats about the only real difference.

  • @CookingWithCows
    @CookingWithCows 8 ปีที่แล้ว +2

    Less worried about overcharging, more about the matte black casing and almost black solar panel absorbing a lot of heat from the sun, as you said. Especially inside the window where it has no airflow. How would you rate the chance of the lithium battery combusting randomly?

  • @weeardguy
    @weeardguy 2 ปีที่แล้ว

    My mom bought one of these and it was absolutely shite. The solar panel only manages to push out a mere 4,8 Volt open-voltage, and, though only an April sun, a whopping short-circuit current of 30 mA.
    And my mom was surprised it didn't charge the thing at all behind the living-room window... (which is the reason she got rid of it at some point, ending up on my bench to tear it apart)
    I connected eight 4,8 Volt 48 mA solar cells all in parallel and that gets a nice 0,5 Amp current flowing into a 18650 cell during sunny conditions.
    'Mine' has an HT4936S chip inside.

  • @greanlantern
    @greanlantern 7 ปีที่แล้ว +1

    I was wondering how to charge the internal battery of this device using a cord and not the solar feature. Turns out you have to use the micro input. Just fyi. - Great video.

  • @danielhorne6042
    @danielhorne6042 4 ปีที่แล้ว +1

    have a look at the goodmans 8000mah power bank from b&m or other power banks from that store

  • @mrnebbi
    @mrnebbi 8 ปีที่แล้ว +2

    +bigclivedotcom So glad you reviewed one of these. I was looking at buying one just for the components. Especially the Solar Panel.
    Would be interested to see a review of some cheap solar panels that would be good to use for robotics projects.

    • @bigclivedotcom
      @bigclivedotcom  8 ปีที่แล้ว +3

      +Ian Isted Ebay has a wide range of bare solar panels in a similar style.

    • @bitelaserkhalif
      @bitelaserkhalif 7 ปีที่แล้ว +1

      mine's used to had this charger until it battery swells. so i kept anything but battery

  • @JamesLewis
    @JamesLewis 8 ปีที่แล้ว +3

    It does depend how they quote the capacity, since usually they are listing the capacity of the Lithium cell, which is 3.7v nominal, and the conversion efficiency may be only around 80%, so if you measured the capacity at 5v you might well get 2.something even if the cell itself is 5000mAh at 3.7v.

    • @bigclivedotcom
      @bigclivedotcom  8 ปีที่แล้ว +1

      +James Lewis I measured the cell capacity. When boosted to 5V the mAh capacity at 5V would be much lower.

    • @JamesLewis
      @JamesLewis 8 ปีที่แล้ว +1

      bigclivedotcom Ahh, that's a shame, I've had fairly good luck with flat pack lithium cells... 18650's from china on the other hand... I bought some 5000mAh 18650's just to see how bad they were, since 3400mAh is the highest "legitimate" capacity that really exists... and while my "Torchy" 2500mAh cells measured 2550mAh on my test rig, Ultrafire 5000mAh cells measured just 700mAh.... never buy any cell from Trustfire or Ultrafire, or any brand claiming excessive capacity!...

    • @bigclivedotcom
      @bigclivedotcom  8 ปีที่แล้ว +3

      +James Lewis They do it with NiMh cells too. The highest genuine AA cells are usually nudging 3000mAh at 1.2V, but you get 5000mAh and higher being sold online. I bought a couple of different ones and they measured 300mAh. You could feel they were much lighter than a proper high capacity cell as soon as you picked them up.

    • @JamesLewis
      @JamesLewis 8 ปีที่แล้ว +3

      bigclivedotcom It's a shame, Chinese electronics are often quite respectable, even when they don't meet the claimed specs they are still often very useful... but lithium cells from China are plagued with fakes, second hand laptop cells, and false (even impossible) claims...

  • @SXI96
    @SXI96 7 ปีที่แล้ว +1

    I just bought this and was able to power a smartphone and ipod touch very quickly. I just don't know how long it takes to charge under sunlight. It worked great for me so far. I just hope it re-charges properly under sunlight. For 7 dollars, I can't complain too much.

    • @SXI96
      @SXI96 7 ปีที่แล้ว +1

      I've left mine on a window sill, hopefully if I leave it there long enough, it will charge

    • @Axel.No1
      @Axel.No1 7 ปีที่แล้ว +1

      the solar panal will take up to 48h to fully charge the battery so its for emergency use

  • @aamnaghaffar3189
    @aamnaghaffar3189 4 ปีที่แล้ว +1

    Nice brother 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻

  • @zx8401ztv
    @zx8401ztv 8 ปีที่แล้ว +1

    A nice slim device, shame its not quite up to spec :-(
    .
    Data sheets can be useless at times, the specs can be so wide that you get no idea of how good/bad the chip actually is, and different datasheets can show quite a difference.
    .
    Like the specs for decent multimeters, the meter is allways better than the spec sheet by quite a good bit.
    Change to thicker wires to the battery perhaps?

  • @chouaibsam4381
    @chouaibsam4381 6 ปีที่แล้ว +1

    Please do a tutorial how you would do to improve things in it

  • @MattExzy
    @MattExzy 8 ปีที่แล้ว +1

    I've always wondered how these things would go under the Australian sun. It's been a run over 30 degrees C everyday for like a month in my neck of the woods, I just wonder how many of these would tempt combustion with all the black inside.

  • @N5ZFJ
    @N5ZFJ 8 ปีที่แล้ว +1

    Using Google Translate:
    TP4351 B TPOWER 1A synchronous mobile power scheme semiconductor Co. , Lt Overview Features TP4351 B is a designed specifically for mobile power synchronous boost single-chip solution ● Discharge output: 5V / 1A decision program, integrated linear charge management module, synchronized discharge management module. Charging current: 1A maximum power detection with LED indication module, protection module. Efficiency: 91% (input 3.7V, output 5V / 1A) TP4351 B Built-in charging and discharging power MOS, the charging current can be set. BAT discharge voltage: 2.9V maximum charging current is 1A, synchronous boost support 1A output current. Optional 4.2V / 4,35V charging voltage TP435fB integrated temperature compensation, over-temperature protection, over charge and over-discharge protection Maximum 25uA standby current protection, output overvoltage protection, output overloading protection, output short circuit protection, such as multiple intelligent temperature control and over-temperature protection security features to ensure safe application circuit chip and Jane lithium-ion battery integrated output overvoltage protection, short circuit protection, overloading protection single element can be achieved with minimal management charge and discharge management. Integrated overcharge and over-discharge protection support trickle mode and zero-voltage charging ● Support flashlight function, maximum output 100mA ● Package: SOP16 application mobile power

  • @PhattyMo
    @PhattyMo 8 ปีที่แล้ว +1

    It wasn't instant,but the datasheet finished downloading while you were talking about how long it was going to take. :)
    That 91% thing might be an efficiency rating.. Just a wild guess..I don't know Chinese either.

  • @Bigrignohio
    @Bigrignohio 8 ปีที่แล้ว +1

    I decided to buy a solar USB just to have a look inside. Searching eBay is hilarious. There is a little rectangular solar USD that someone is advertising with four possible capacities in the pull-down selection. 1000mAh (quite likely), 1500mAh (OK, still possible), 50,000mAh (who are they kidding) and 100,000mAH! Then you look at the usual Chinese copy/paste description and it states 30000, 50000 and 10000mAh. All for less than $20USD delivered.
    Better than the local comedy club.

    • @Bigrignohio
      @Bigrignohio 8 ปีที่แล้ว +2

      +Bigrignohio In relation to this, anyone buy the 1200mAh keychain mini solar USB power bank? If the solar cells work AT ALL it might be worth it just for the flashlight feature.

  • @JerryEricsson
    @JerryEricsson 8 ปีที่แล้ว +2

    Greetings from the frigid Dakota prairie! Not quite on point, I guess, but I have a sort of question, comment or something like that, not really sure.. A few years ago, I was looking for a portable solar cell on Ebay. I came upon a deal on Ebay for a used cell that was in an olive drab canvas carrier with loops to hook to a backpack, and a thick canvas type leg to hold it up on the ground should you wish to detach it. I got it for just a few bucks, the fellow who had it said he used it for a two week camp vacation and that it charged his iPhone during the trip with no problems. Now I see on all the cheap china cells that they say the will not charge a cell phone. At any rate, we fled the cold to Arizona this winter, and while camped some 7 miles north of the Mexican Border, I decided to try out that charger. My wife has an Archos 8.1 tablet that had failed to charge up with the proper charger, so I thought I would give the Solar deal a try. I put it out on the table and aimed it to the blazing Arizona Sun, the device began charging, and within an hour was at full charge! Now perhaps I got a better quality solar cell or something, but this one appears to live up to the sellers claim, and puts out very well! He said he purchased it locally from a hardware store here in the good old USA. I can't find any markings on it as far as brand name, the cell is protected by a clear plastic water proof cover and surounded by canvas, very well padded, and the cell seems to be bendable, while I never really pushed that issue, you know how it is when you get a new toy and you are trying it out....

  • @FischOderAal
    @FischOderAal 8 ปีที่แล้ว +1

    Quite often the difference between the mAh stated and the ones measured is due to the fact that the Lithium cells have a different voltage that is boosted to 5 V. Usually the stated capacity is referenced to the cells voltage and not 5V, because this way they can state higher numbers. Even Xiaomi does that, but they also state the 5 V capacity on their power banks.
    Source: I own one. Also take a look at this picture of a 16.000 mAh Xiaomi power bank. assets.hardwarezone.com/img/2014/12/Mi-16000mAh-label.jpg

  • @JuliusDownes
    @JuliusDownes 8 ปีที่แล้ว +3

    Samsung and LG (I'm not sure about other companies) have been using 3.8v / 4.35v cells for some time. A problem arises if you buy a third party battery as many companies only produce 3.7v / 4.2v cells. I noticed a problem when I was unable to clip the back of my phone back on after about a month of use because the cell had expanded.

    • @stevenking2980
      @stevenking2980 8 ปีที่แล้ว +1

      Try apple. iPhones rule. I've had 6 over the last decade. Flawless and no worries. :)

    • @JuliusDownes
      @JuliusDownes 8 ปีที่แล้ว +1

      The supplied batteries in LG and Samsung are good, I was talking about 3rd party after market batteries.

  • @PetreRodan
    @PetreRodan 8 ปีที่แล้ว +1

    did a search on ebay for 'solar power bank' and it's full of 100000mAh units !?! yes, that's one hundred amp hours. can you please take one of those apart and see what enriched Lithium nuclear reactor they have inside? :)

  • @geirmyklebust
    @geirmyklebust 5 ปีที่แล้ว +1

    Love this charger, but...... with LED light on the back side.

  • @Silent_Python
    @Silent_Python 8 ปีที่แล้ว +1

    Halfords started selling these and Ring makes them. Don't know what the quality is like tho.

  • @musicwiz40
    @musicwiz40 7 ปีที่แล้ว

    having a cup of tea right as you said go have a cup of tea. right on :)

  • @phils4634
    @phils4634 7 ปีที่แล้ว +1

    Clive - did you build that USB Load yourself, or is available from the "usual sources"? If the latter can you provide a link to supplier(s)?? Ta in advance, Phil S.

  • @chrisbird5420
    @chrisbird5420 8 ปีที่แล้ว +1

    Can you look at the screwfix power banks being given out at the moment? Think they claim to be 2400mAh look similar to the ee ones out a while back. Would look in my own but I use it! lol

  • @jonathan_herr
    @jonathan_herr 8 ปีที่แล้ว +1

    Have you tried seeing if the other solar cell (from the other solar power bank) outputs more current than the one in this demoed powerbank.. and if so, maybe doing a mod to switch them over?

  • @EliasH96
    @EliasH96 8 ปีที่แล้ว +1

    I got the same one but a green (with the 5 leds and the button on the left side). i choosed the 8000mAh, it measured out at 2600mAh. it was cheap, so atleast I can use the solar cell for something :D also, my circuit board didn´t have any screws haha
    EDIT: after watching the other video, the first thing I did was to take it apart and look for bridges haha

  • @brianterrill9587
    @brianterrill9587 4 ปีที่แล้ว +1

    Is there an actual name for those flat LiPo batteries? And is there a difference between the 1S and 2S? I've also seen 18650's referred as 3S. What does that mean? An episode covering rechargeable batteries and rechargers perhaps?

  • @Wuptidoo
    @Wuptidoo 8 ปีที่แล้ว +2

    Hi Clive. Did you test the capacity directly from the battery or from the 5V USB output?
    Also the 4.35V is the high density polymer batteries, that you would normaly find in more expensive applications such as mobile phones.

    • @magdalenajirova5745
      @magdalenajirova5745 8 ปีที่แล้ว +1

      +Wuptidoo Exactly. The battery probably has the nominal "capacity" of 5Ah. Measuring battery capacity according to the mAh the bank delivers to load connected the 5V makes no sense. To check battery capacity, one have to connect a constant current load to the battery terminals. What Clive measures is the mAh "capacity" of the power bank, not the battery. Clive repeats this error again and again.

    • @bigclivedotcom
      @bigclivedotcom  8 ปีที่แล้ว +1

      +Wuptidoo It was the internal lithium cells capacity I measured.

    • @bigclivedotcom
      @bigclivedotcom  8 ปีที่แล้ว +1

      +Magdaléna Jírová When the internal cell is charged from a USB power supply the excess voltage will be dissipated as heat by the charging regulator in the pack. But the actual mA to hour ratio will give the bare 3.6V lithium cells capacity. The 5V output will be significantly less.

  •  8 ปีที่แล้ว +1

    Google translate worked fine for me. I could get out that the title of the schematics is "Typical application circuit" To the left of 90% - Efficiency, to the right - output 5v/1A ? Screen too blurry, cant take a good photo.

  • @gert3d
    @gert3d 8 ปีที่แล้ว +1

    do you have a video on how to measure capacity of lithium cells?

  • @pekarna
    @pekarna 7 ปีที่แล้ว +1

    Hi. If I chain 6 of these, will it charge the last piece in the chain get charged almost 6 times faster?

  • @twocvbloke
    @twocvbloke 8 ปีที่แล้ว +3

    One test for these that is needed is the thermal testing, see how long it can last sat in the sun absorbing heat into the battery before it goes thermonuclear... :P
    Yep, google translate on my Android phone (Samsung Galaxy S5) works to decode chinese writing, does result in chinglish at times, but for things like spec lists and those mystery 91% things it works (just not always when pointing said phone at my laptop screen)... :)

    • @zx8401ztv
      @zx8401ztv 8 ปีที่แล้ว +1

      +twocvbloke
      I love a good laugh, google translate produces some of the funnyest texts, often its not possible to do what it says without a chicken and a sink plunger on standby ha ha :-D :-D

    • @twocvbloke
      @twocvbloke 8 ปีที่แล้ว +1

      zx8401ztv
      Yes, chinglish is good for a laugh, it's amazing anything can be gained from such poor translations... :P

  • @mbaker335
    @mbaker335 8 ปีที่แล้ว +1

    I have used the google translation app for my android phone in the UK to translate Chinese documents with no problem. I have no idea why you are having difficulties. As for the incorrect description with Chinese vendors give them negative feedback and they will often refund a large chunk of the purchase price. I would rather they were honest with what they sold but at least it is making their life a little more difficult.

  • @johnn3542
    @johnn3542 2 ปีที่แล้ว +1

    I was hoping you would have a video on one of these. Have the same one, but feel like if I take it apart I won't be able to get the rubber parts back on.
    Edit... Mine has the hole for the LED under the rubber, appears to be pads on the circuit board for a LED... Now I gotta tear it apart

  • @avinpillay1158
    @avinpillay1158 6 ปีที่แล้ว +1

    hey i bought the same type solar charger! same color also! the thing doesnt work ! chargers for an entire day but unable to charge phone ! how do i fix it???

  • @hubzcaps
    @hubzcaps 7 ปีที่แล้ว +1

    hi i have that one also . big fan are GTL white 18650 cells safe ??

  • @DjResR
    @DjResR 8 ปีที่แล้ว +1

    N.C. usually means "not connected". Also the pdf loaded 3-5 seconds for me, maybe the server had ddos attack at the moment you loaded it?

  • @canlelola
    @canlelola 6 ปีที่แล้ว +1

    huh, I found one of those apart in some rocks on the side of the road.

  • @SakosTechSpot
    @SakosTechSpot 8 ปีที่แล้ว +7

    Hi Clive! 👋

  • @jayzo
    @jayzo 8 ปีที่แล้ว +1

    You should look at a fake Nitecore D4 battery charger. The Nitecore brand is notorious for having fakes. I'd like to see just how safe the dodgy ones are.

  • @gerardoesc
    @gerardoesc 7 ปีที่แล้ว +1

    Hello I have an issue because I have a brand new solar power but Since last Sunday I put it in the sun like 6 hours and still not have any kind of batery juice what should I do ...
    Thanks...

  • @Prnencetti
    @Prnencetti 5 ปีที่แล้ว +1

    I got one of these charger not the one you have is a different style but it literally does the same thing as this one does. mine has a giant flashlight on the back of it not a little LED on the side of it. I also am thinking of buying one of these for my grandmother being she lives in Puerto Rico she could leave this sitting in the sunlight all day long charging and then at night plug her phone into it and then during the day put it right back out on the front porch where she gets the most amount of sun during the day. That's been would be great for her because she gets constant power outages in Puerto Rico all the time there and it's not good because she doesn't know how to drive anymore being she's 82 years old and with this all she would have to do a stick getting the sunshine all day long have it charged and by the time she's ready to go to sleep plenty and her phone and Bam there she goes a full phone in the morning. My device even has a full battery thing inside of it where is the phone is at 100% it'll cut off and will not produce a charge anymore so that is why I say my grandma can plug this in overnight to her phone and then it'll just shut off when the phone reaches 100. I don't know if that is the charger that is shutting down or if the phone is not accepting a charge anymore. But sometimes the charger will just shut off when it knows your device doesn't want to charge anymore. For example my phone I can put it into this and I'll get up to 100% and then cut right off. That is good because like I keep saying somebody could leave this plugged in for a long. Of time their phone can get to 100% they can forget about it and then hours later when their phone is full go back to it and see that it has shut off when you're wide has shut off and see the phone is at 100%these are also good for developing countries like Africa where they don't have electricity but they have cell phones because they need to get all their citizens cell phones and I think I heard that they do something when they give low-income families cell phones like they do over here so the family would have one phone for the entire house and they'd only be able to use that. I've heard of fathers and the man of the house going out to work in the city charging the phone remind you the phones only a flip phone or a candy bar phone not a smartphone so the man of the house the father of the husband son whoever would go out to town work all day find somewhere to plug their phone in while at the city and then when they go back out to their house their phone has a full 100% charged for them to be able to use the phone at night. What this all they would have to do is just stick it outside in hopes that nobody would steal it or at least hang out somewhere let it charge all day and there you go they have a fully charged phone. I swear by the chargers now I haven't been able to use mine in the sunlight yet but I do swear by these chargers and I would definitely get one soon. I do have to update mine I may just buy this one because I can clip on a carabiner and clip it to my backpack and walk around with her all day in the sun while I'm outside already my bike or doing outside activities.

    • @bigclivedotcom
      @bigclivedotcom  5 ปีที่แล้ว +1

      These power banks often puff up if actually left in bright sun due to the heat.

  • @AdmiralPreparedness
    @AdmiralPreparedness 7 ปีที่แล้ว +1

    That particular one's battery bloated while exposed to the sun. Bad news!!

  • @Unknown-mn1ui
    @Unknown-mn1ui 4 ปีที่แล้ว +1

    Hi, can i ask you sir a question about this solar powerbank

  • @TheCode-X
    @TheCode-X 6 ปีที่แล้ว +1

    Hi there Cive, i have one of these that was a "collect points" gift from CocaCola's two years ago, and i only had it used a few times as it won't charge my phone (2.600Ma) even 1 time. How i can check if it's okay? also, it takes FOR EVER to fully charge (Using a 2A 5V charger), almost like a complete day. Could you help me? mine's Red on the shell and black at the bumper

  • @sedsberg77
    @sedsberg77 8 ปีที่แล้ว +3

    You can get these up to 600000mAh on ebay now. I wonder where they get these numbers from, and why they stop at 600000.

    • @MeowMeowDeathRay
      @MeowMeowDeathRay 8 ปีที่แล้ว +2

      +Svein Erik Edsberg Its over NINE THOUSANDS!!!!!!

    • @sedsberg77
      @sedsberg77 8 ปีที่แล้ว +2

      That's right. 600000 is over 9000.

    • @PrawnCocktailBro
      @PrawnCocktailBro 8 ปีที่แล้ว +1

      +Svein Erik Edsberg LOL

  • @CowboyFrankHarrell
    @CowboyFrankHarrell 8 ปีที่แล้ว +1

    Have you tried Google Translate to see if it can give a hint to some of those charters?

  • @OAleathaO
    @OAleathaO 7 ปีที่แล้ว +1

    Hmm...something just occurred to me: Batteries don't like heat, especially when charging. So let's charge a battery *_in the sun_* where it is bound to heat up. Interesting. ;)

    • @bigclivedotcom
      @bigclivedotcom  7 ปีที่แล้ว +2

      Many people report that if left charging in full sun these type of units often fail with the case splitting due to battery expansion.

  • @bruhdabones
    @bruhdabones 7 ปีที่แล้ว +3

    I use google translate for fun on the epackets I get from ebay. You can do it real time or take a picture and then translatem

  • @A_Casual_NPC
    @A_Casual_NPC 8 ปีที่แล้ว +3

    Heey Clive, I'm wondering if you can help me out.
    My mother in law always unplugs her tv when it's turned up. It's a pretty new LCD tv, but her reason for it is to save power, not for security. So i'm wondering how much power it would use when leaving it in. Given a year time. She really believes she's saving alot of money this way. Now I'm no technician but I do not believe the power usage can be al that high.
    Could you prove or disprove this for me?

    • @Dukey8668
      @Dukey8668 8 ปีที่แล้ว +4

      +Niels van Asten The turned off power of an LCD monitor is about 1.1 watts, so for a TV we'll say that's about 4-5w. The cheapest electricity I could find was 9.596 pence .per kWh, and the most expensive 10.804 pence per kWh. So at 5w consumption, it 200 hours = 1kWh. With 8760 hours in a year, 8720/200 = 43.8 kWh a year. Multiply the kWh with the price Thus, it would cost £4.20 to £4.73 or $6.04 to $6.80 a year.
      I'm not that great with all this stuff but I hope this helps (You might want to check my math, I might have made a massive mistake somewhere).

    • @A_Casual_NPC
      @A_Casual_NPC 8 ปีที่แล้ว +1

      +Dukey8668 Hey that is just what i wanted to know, thanks!

    • @nightshadelenar
      @nightshadelenar 5 ปีที่แล้ว +1

      there's really no difference in power savings unless you unplug the fridge and freezer.

  • @MilesUmbrae
    @MilesUmbrae 8 ปีที่แล้ว +1

    The poor download-speed from China might have something to do with the Chinese firewall and their version of NSA...