2$ LiPo Charger & Boost Converter? || TP5410 Test

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  • čas přidán 22. 07. 2017
  • You can get the TP5410 board here (affiliate links):
    Ebay: rover.ebay.com/rover/1/711-532...
    Aliexpress: s.click.aliexpress.com/e/_dTp...
    Amazon.de: amzn.to/2uMC6PT
    Support me for more videos: / greatscott
    Previous video: • Electronic Basics #30:...
    Facebook: / greatscottlab
    Twitter: / greatscottlab
    In this video I will have a look at the wemos d1 battery shield that "supposedly" can charge up a LiPo battery and boost its output voltage up to 5V. I will determine all the important features the board offers (like overdischarge or short circuit protection) and also test the efficiency of the boost converter.
    Music:
    2011 Lookalike by Bartlebeats
  • Věda a technologie

Komentáře • 740

  • @enricorov
    @enricorov Před 6 lety +321

    'First off, I desoldered the pesky LiPo connector.'
    That's my man.

    • @miniwarrior7
      @miniwarrior7 Před 6 lety +5

      Enrico Rovere 😂 I bought a bag of them connectors

    • @UpLateGeek
      @UpLateGeek Před 6 lety +7

      Careful with these modules, mine came with the wrong polarity connector!

  • @rickyleung5890
    @rickyleung5890 Před 6 lety +779

    why don't you ask some of your audience who are native chinese speaker when you have to read some chinese datasheet?i'm from Hong Kong,and i'm willing to help you

    • @ciarfah
      @ciarfah Před 6 lety +31

      tutorial arduino Commenting so he hopefully sees this

    • @josedourado3747
      @josedourado3747 Před 6 lety +54

      tutorial arduino maybe you can ask the manufacturers why they lie about the specs of this board....

    • @Hackvlog
      @Hackvlog Před 6 lety +20

      Can't agree more with Srigi. Google Translate app is an invaluable tool and a must-have app for anyone working with Chinese components.

    • @jort93z
      @jort93z Před 6 lety +20

      also its sometimes hillarious if you read it out loud what google translate spits out.

    • @mopication
      @mopication Před 6 lety +2

      If you have chrome, you can also install project naphta, which can translate text in images (if you have an image, of course. unfortunately it doesnt work with pdfs). If you have a pdf, you can upload it to google drive, open it with google docs and translate it (tools>translate)

  • @kavinkumarr9629
    @kavinkumarr9629 Před 6 lety +82

    happiness is getting notification from Great scott

  • @benjamincrall8065
    @benjamincrall8065 Před 6 lety +1

    I like how you made the components de-solder themselves at the end

  • @tornadokat
    @tornadokat Před 5 lety +1

    Thanks for showing us this board and testing it so well! I like the idea but will wait for better versions to come out that address the significant issues this one has.

  • @bilz0r
    @bilz0r Před 6 lety +2

    This is brilliant. It's hard to keep up with all the new boards that are available, especially when they don't have proper documentation. More like this!!!

  • @aviationenthusiast7732
    @aviationenthusiast7732 Před 6 lety +7

    I was waiting for your video today
    And luckily you uploaded one today.....

  • @nicholasroos3627
    @nicholasroos3627 Před 6 lety

    Really digging that rework technique at the end!

  • @BrainSlugs83
    @BrainSlugs83 Před 6 lety +10

    Nice work, it would be neat to see the equivalent practical tests done on the $20 board, and see how accurate the advertised specs are.

  • @bitluni
    @bitluni Před 6 lety +5

    Thanks for the extensive testing. I was zoo lazy to do that. The missing protections are common for the tiny lipo protection circuits on the battery themselves. So there won't be a problem in the most cases. I rather keep the connector. It's a standard JST. You can crimp a counterpart to your battery and then it's easy to disconnect.. which will happen more often

  • @zerog2000
    @zerog2000 Před 6 lety +3

    Lol. I like how you got all bigclive on it at the end with 12v.

  • @markangelonambatac5791
    @markangelonambatac5791 Před 6 lety +26

    Me: Buys the module... "it charges the battery Yey!"
    GreatScott: "The output current is constant.... But once i lowered the input voltage to the nominal voltage..."
    Me: ......

  • @insightfool
    @insightfool Před 6 lety

    Thanks for that. I was just looking at boost converters for just this purpose.

  • @SumitDubey7688
    @SumitDubey7688 Před 6 lety +6

    My ultimate wish is to assist GreatScott on all his projects (want to learn so many things from this man)

  • @sunny90908
    @sunny90908 Před 6 lety +1

    Nice comparison !!! Good job there!!

  • @Moonwalker917
    @Moonwalker917 Před 6 lety

    I love this kind of videos! Me and probably a lot of people in your audience buy this kind of cheap stuff from chinese sellers. I would really enjoy more of these tests. Keep it up! :D

  • @JamieBainbridge
    @JamieBainbridge Před 6 lety +5

    I have always thought there should be a cheaper alternative to PowerBoosts. This would be good for a little microcontroller project, which is exactly what I was looking for.

  • @EpicSnaps
    @EpicSnaps Před 6 lety +1

    I like the way you teach. 👍

  • @georgelewisray
    @georgelewisray Před 6 lety

    Thanks very much for what you do . . . . .I am new to your channel and as I watched my first video I thought GREAT SCOTT this is wonderful stuff. . . . .

  • @ElimAgate
    @ElimAgate Před 6 lety

    Thanks for this video. I've been looking for an economical way to power some basic LED switcher and seven segment displays for some integrated edge-lit acrylic signs. I hate the idea of cables running from a desk so this lipo+boost converter seems like it would be great.

  • @Twister130
    @Twister130 Před 4 lety

    You are very professional and i like your videos ... keep up the good work my friend

  • @ryccoh
    @ryccoh Před 6 lety

    These videos are gold

  • @beyondmoss
    @beyondmoss Před 6 lety +2

    Great video, really interesting as I just picked up one of these to look after a lipo powering an esp8266 but got utterly confused by the data sheet (lesson learnt there). I'd be really interested to hear your thoughts on over-discharge protection methods, chips and applications!

  • @PBWillyWonka
    @PBWillyWonka Před 6 lety

    I'm impressed with your knowledge..! You know you're stuff inside out. Gettings from USA!

  • @tomislavbrlek6940
    @tomislavbrlek6940 Před 6 lety

    Thank you! You have helpt me a lot. Keep up the great videos.

  • @FantaBH
    @FantaBH Před 6 lety +2

    There are lipo chargers built in battery case on ebay (USB Portable External Backup Battery Charger Power Bank For Phones) , they cost less than a 1$, and they have very nice charger and 5V booster , and both USB ports for charging and discharging. I often buy those and just take out that very small pcb with both ports. They working flawlessly. Maybe in next video I present those, you gave me idea, ty GreatScott . Thumbs up from me as usual.

  • @MaxintRD
    @MaxintRD Před 6 lety +1

    In the outro of this video I saw your quite interesting technique for desoldering SMD components. Looks much easier than fiddling with a soldering iron! ;-)

  • @Latvian3Dman
    @Latvian3Dman Před 6 lety

    Very useful, thank you! I recently touched these kinds of solutions (for portable DIY oscilloscopes projects), so , your tests - good to know! :)
    P.S.: that's one heck of a hot summer in Germany, judging by the end of this video... :D

  • @UpLateGeek
    @UpLateGeek Před 6 lety

    Nice work, I've got some of these in my projects, so it's good to know I should only use protected cells!
    And I agree, the Lipo connector is very pesky, being the wrong polarity! (At least on mine anyway, didn't notice whether yours was as well.)

  • @Elnufo
    @Elnufo Před 6 lety +1

    12V Auto desoldering feature included, nice :-)

  • @landygm
    @landygm Před 5 lety

    The coolest video I’ve ever seen!

  • @Max_Weight
    @Max_Weight Před 6 lety

    More than 600.000 subs getting close to the 1.000.000!!

  • @avejst
    @avejst Před 6 lety

    Thanks for sharing. Good to see the ops and downs. :-)

  • @Xyz-77
    @Xyz-77 Před 6 lety +89

    when will you make a video about electromagnetic levitation?

  • @anchoriticparliament6343
    @anchoriticparliament6343 Před 6 lety +3

    Can you make a video on what parts you always or often keep at hand

  • @diyelectronics5537
    @diyelectronics5537 Před 6 lety +36

    this is more practical, but if you need more power on the 5 volt line it is better to use a separated boost module

    • @greatscottlab
      @greatscottlab  Před 6 lety +35

      Definitely

    • @ItsJustMeMusic
      @ItsJustMeMusic Před 6 lety

      DIYelectronics Agree with u

    • @ItsJustMeMusic
      @ItsJustMeMusic Před 6 lety

      DIYelectronics and it's still 2 dollars to get both on ebay

    • @susomoraify
      @susomoraify Před 6 lety

      DIYelectronics Can you recommend a reliable one? I got one from Amazon but it's crap: an overshoot of almost 23 Volts for almost 1 second that fried my IC's....

  • @AlamoCityCello
    @AlamoCityCello Před 6 lety

    Your Vids ROCK!! THANKS BRO!!

  • @FangfeiYang
    @FangfeiYang Před 6 lety +13

    Notice that the chip itself is just a boost driver chip.. So, VOUT, is actually input pins (for sampling). For battery to VOUT(or SYS), there is not any protection.
    1. This chip itself has overcurrent protection, but it's for the chip. If you short the SYS, it just like you are shorting the battery...
    2. When the voltage is lower than setting (2.7v), it stops boost, and as the topology, it just connect battery to SYS directly. So their is no over-discharging protection.
    3. Other protections are just cut off Vin at some conditions.
    4. There is a circuit in datasheet comes with power path selection. This one you get is not suitable (but can, due to it have a diode connect from 5v in to Vsys) for charging and providing power at same time...

    • @FangfeiYang
      @FangfeiYang Před 6 lety +1

      Yes.
      First, I've never used this chip. So I'm just analysing these things by some facts that I know...
      It can be just the problem of this kind of IC, the manufacturer is cheating about the values...
      But consider that 700ma to 990ma(min) is too ridiculous, I think the poor PCB design maybe the main reason.
      According to the datasheet, the charging part is a Linear regulator (it's not buck reuse the coil, it's a linear regulator...) which do not have a good efficiency and release heat. (We are talking about a 5V to 4.xxV LDO... with 1A)
      The chip will limit the current by measure the temperature. (in case it goes too high)
      In the datasheet they have warned that a bad heat design can result in lower charging current. So they recommend to use the copper on the bottom side as the heat sink by connect the back metal part on the chip to the bottom GND layer through vias.
      From the picture of the product on the ebay, I can hardly see any via on bottom layer that connect chip ground to the bottom layer... (I can see a hole at 7:24 but I'm not sure if it's a via...)
      Not mention they run the gnd wire under the coil...
      As a comparison, you can look at the reference PCB design from the manufacturer www.tpwics.com/nd.jsp?id=24&_np=2_403

    • @FangfeiYang
      @FangfeiYang Před 6 lety

      - something wrong, removed -

    • @FangfeiYang
      @FangfeiYang Před 6 lety

      - something wrong, removed -

    • @FangfeiYang
      @FangfeiYang Před 6 lety

      I'm not talking about the wide of pcb trace...
      I can only find θja for this chip with no idea what the design is...
      But it would be affected by the design and diminish the current.. But I cannot say anymore about this unless I buy one of this board...
      Typical LDO like AMS1117 have a huge metal heatsink that almost as big as the battery chip itself... That's not the same story...

    • @FangfeiYang
      @FangfeiYang Před 6 lety +1

      145℃ is max junction temperature (in limit mode it's 120℃) and in the figure of "complete charging cycle (2:45)", datasheet says θja = 130℃/W.
      But I don't think with well thermal condition, θja would be so large...
      So either the value is wrong or it means some other condition...

  • @kramer26
    @kramer26 Před 6 lety

    It would be good to see you experimenting with some higher power devices, ones that can source a larger current and what measures you might take to handle it.

  • @Prashant5479
    @Prashant5479 Před 8 měsíci

    @GreatScott! Nice video Scott! This though did not work for me for the following reasons:
    1. output is not constant 5V, it is USB voltage - 0.2V.
    2. without USB voltage, it gave 3.7V or the battery voltage as the output, without any boost.
    So, I'll go back to the first solution that you showed - boost circuit + batt charging circuit.
    Maybe I'll look to combine them as you showed in one of your other videos.
    Thank you for making these amazing videos!
    Gave me confidence to make my own LiPo powered projects :) (y)

  • @alexrider9476
    @alexrider9476 Před 6 lety

    Great test! Thanks! I wanted to buy this, but yet I will seach something else.

  • @brucecalder7752
    @brucecalder7752 Před 6 lety

    Nice vid. I would like to see a similar circuit with auto-shutoff to protect LiPo battery from over charging cuz too often I forget to unplug them and ruin the battery. Not to mention the danger of over charging.

  • @mikehauk6079
    @mikehauk6079 Před 4 lety

    I like your handwriting. 👍

  • @judequinston
    @judequinston Před 7 měsíci

    Thank you for this video. Do that over voltage fry the D1 mini pro when unplugging the charger cable?

  • @stm32user
    @stm32user Před 2 lety

    Great Greatscott

  • @gauravate9
    @gauravate9 Před 6 lety

    Again grate video...grate scott....!

  • @brzydka_i_bestia
    @brzydka_i_bestia Před 6 lety

    Looks like GreatScott developed a new desoldering technique called "overvoltage desoldering". Maybe I should try it some day.

  • @daemiax
    @daemiax Před 6 lety

    You should check one of those Regulated e-cigarette mods. Evic VTC Mini for example would be a great thing to test, I'd love to see what type of circuit they use to regulate temperature of the atomizer resistance. They have this thing called Temperature Control, and Voltage control, and even bypass mode which theoretically acts as if the mod is outputting the Voltage of the battery .

  • @oleksandrmasliuchenko1874

    Great! Thank you very much for the video. I am testing this charger board as well.
    Question: What is the name of the adapter that you plug in at 0:07 timecode? The one that is 5.5mm concentric on one side, and socket with 2 screws on other. I could not find similar on aliexpress/ebay mostly because I can't find a name for this thing.

  • @AbdesslamSallak
    @AbdesslamSallak Před 6 lety +1

    Hey Great Scott, sorry I'm a bit late to comment to your video, but I've been trying to use 3.7V LI-PO battery to power my camera T3i which needs 7.4V to operate properly, after some digging I found out that I could use 2 boost converters to get to 7.4V required by the camera but I also learned that the capacity of the battery which is 5000mAh will drop significantly if I use such a combination (3.7v to 5V and then 5V to 7.4V), what do you think should I do, and do you think I can build a straight 3.7V to 7.4V charger and boost converter? thank you so much :)

  • @fuba44
    @fuba44 Před 6 lety

    Great video, thanks for sharing

  • @cooker5000
    @cooker5000 Před 6 lety

    Hey Greatscott
    I would like to connect the output from the step up directly to a microcontroller, but I don't want to kill him. How can I protect the microcontroller? (Overvoltage as you explained in your Video)
    Thanks for this nice video

  • @houseofelectronics5869
    @houseofelectronics5869 Před 6 lety +1

    Hi! I like your channel very much. I am interested to learn these things. Since I'm also new to electronics, I couldn't understand the part when u lowered the voltage at the input and saw a decrease in the boost voltage output. You said it could lead to over discharge of the battery. I couldn't understand it. can you explain?

  • @michaelomiccioli4646
    @michaelomiccioli4646 Před 6 lety

    Great video, can you clarify your equation about how long the battery will last?

  • @apozlevich
    @apozlevich Před 6 lety +3

    Will you make you own with all features?

  • @gabrielflorit4470
    @gabrielflorit4470 Před 6 lety

    You should used powerbanks modules, they are faily cheap, can provide around 500mA at the output of the boost converter and around 1A of charging current. And also they have the battery protection circuit. I have been using these circuits for a while and they work like a charm on all my portable proyects with LiPos and 18650 Li-Ion battery cells. Anyways, great video, as always

  • @thedankoona_5854
    @thedankoona_5854 Před 6 lety

    never clicked on a notification so fast

  • @kasrabtw
    @kasrabtw Před 6 lety +1

    Not testing Modules actually! Can you make a video about BLE with HC-08 for example? Thanks!

  • @vivekchauhan7468
    @vivekchauhan7468 Před 6 lety +1

    Always great

  • @DirarKteish
    @DirarKteish Před 5 lety

    Thank you for video. Can you create a portable laptop charger out of salvaged laptops batteries?

  • @peileed
    @peileed Před 3 lety

    thank you for this

  • @JeffLewistennis
    @JeffLewistennis Před 2 lety

    Hello! Great vid! Curious what’s the minimum mAh lipo battery these boosters are able to still power a 5v sensor. I tried with a 120mAh and my sensor fades after a while. Thanks for your help!

  • @ramandeep-iu7tc
    @ramandeep-iu7tc Před 6 lety

    I like your writinh
    And your work

  • @user-jp2pe3nn9f
    @user-jp2pe3nn9f Před 6 lety +1

    Just a thought... Have you tried testing the maximum output current with the battery? The Input impedance of the source (battery vs bench power supply) makes great difference in the performance of the boost converter especially under load. I'd bet, the battery handles the current spikes from the boost converter better than the output filter of the bench power supply you are using (and don't forget the current protection kicking in from time to time). At least you could try placing a big (>1000uF) low esr capacitor at the battery terminals when testing with PSU and add a series inductance between the capacitor and the PSU. Otherwise, great video. Thanks!

  • @dergrunepunkt
    @dergrunepunkt Před 6 lety

    Excellent, in most cases the most common scenario is over discharge and with LiPo batteries going bellow 3v is not a joke, they puff, explode and burn. Would be too hard to add at least that protection?

  • @goodwill7643
    @goodwill7643 Před 6 lety

    Hi,
    Thanks for videos, great tutorials.
    One Topic for Next tutorial if you have interest.
    You could show how to convert old in ear or on ear headphone as a buzzer for a project by sending signal as PWM via transistor from microcontroller or timer.
    I have many old headphones around, and use them for projects as signal interface where I can hear command confirmations.
    For example beep sound on button click.

  • @Darieee
    @Darieee Před 6 lety

    Some TPA3116 amps .. those are usually riddled with problems .. the chips are awesome though

  • @AvengerIl
    @AvengerIl Před 6 lety

    Those lipo batteries usually sold as eg "1500mAh Lipo li-Polymer ion Battery 3.7V for mobile phone Camera GPS PAD 504050" on ebay usually have discharge protection built in no?

  • @metaloenformol
    @metaloenformol Před 6 lety

    Good thing is that it is not difficult to find a LiPo with integrated short circuit/over discharge protection circuit. They are around 10 bucks in sparkfun/adafruit

  • @neomohammed
    @neomohammed Před 6 lety

    need to see your diy power loger in a cabinet .

  • @user-kb7ds7nr1t
    @user-kb7ds7nr1t Před 6 lety

    You are so brave

  • @CanalDojogames
    @CanalDojogames Před 6 lety

    Man, You really did a Lot of work there. I was before something to recharge the Lipo,so You could simple use the Voltage balance on direct charger and output 3.7v to lipo,right? Thanks for the vídeo,i learned a Lot...

  • @MaxintRD
    @MaxintRD Před 6 lety

    Ha, your video starts using the same components as my latest video in which I crammed those two boards with a LiPo battery and a switch in the tin can of an old 9V battery.
    Thanks for another Interesting video! I have plenty of those charger and boost boards you show in the intro of your video. Good to see your test of this alternative. I measured the MT3608 board to take over one mA of quiescent current. Seeing this alternative board using so much less is a great feature,. Despite its shortcomings it may be quite useful in practice.
    Perhaps you can also test the very cheap combination (+/- 0,70 euro) of the TP charger board and that 5V boost converter with the female USB outlet?

  • @tvoipapa
    @tvoipapa Před 6 lety

    Does that battery include overcharge and overdischarge protection. I have a similar one (ableit 1200mAh), and according to its datasheet, it does.

  • @MrControli
    @MrControli Před 3 lety

    Hi there!! the R330 is a resistor or inductor? in schematics it looks like a RC filter for the input voltage pin.

  • @85rocco
    @85rocco Před 5 lety

    If I added over-voltage spike protection and a capacitor to the output of the boost converter, could I use this board as a short term uninterruptible power supply for a low current 5v device?

  • @voltavidTony
    @voltavidTony Před 5 lety

    Do you think a Zener diode is suitable for leveling out that minor voltage spike when you hook up external power? Or should I use a voltage limiter IC instead?

  • @robertcartier5088
    @robertcartier5088 Před 6 lety +18

    Good video!
    I'm wondering... Why not just use the circuit in a cheap, single cell battery pack like the ones from the dollar store. They charge the battery and boost to 5V on output, they have built-in protection(usually), and they come with a battery you can use elsewhere. Even the case can be useful!

    • @philp5013
      @philp5013 Před 6 lety

      Robert Cartier true

    • @roughlygalaxy
      @roughlygalaxy Před 6 lety +1

      They are based on the TP5400 IC, so the behavior should be similar. Only difference though is that they use a 6.8uH inductor instead of the 4.7uH on GreatScott's board.

  • @AdroSlice
    @AdroSlice Před 6 lety

    Maybe you could do a quick tutorial on how to reuse the batteries of old powerbanks with new charging circuits and such when the old are broken, because I still have 2 broken powerbanks laying around and don´t know what to do with them.

  • @benhaotang
    @benhaotang Před 6 lety +4

    I do electronic projects a lot. Besides, I am one of your Chinese fans. If in the future you came across some Chinese websites or data sheets, I am willing to help you!
    I can also help you translate your shows and upload them to China's major video sites if you want.
    I have a suggestion, do you have a more efficient way to make a certain frequency square wave power supply? Thank you!

  • @dr_jaymz
    @dr_jaymz Před 5 lety

    That lipo requires 4.3v, the circuit looks designed for lithium ion?
    Also, you can buy battery packs 1000mah on Amazon 4 pack for under 10gbp and they have protection for short, reverse and under over voltage. So this board with those batteries should be pretty good?

  • @WagonLoads
    @WagonLoads Před 6 měsíci

    I always love your videos, but I did not find out if this was good for anything...
    Like how do I use it and what is it best suited for?
    Does the original 2 board solution work better without any of the 1 board failures?
    Can you make a video on designing a DIY KiCad PCB solution that fixes all of the problems?

  • @bombapiotr
    @bombapiotr Před 5 lety

    Did you try preventing overvoltage on the output? I was thinking about using the board as a UPS style powerbank.

  • @zbll2406
    @zbll2406 Před 2 lety

    Powerbanks posess this kind of circuit, but smaller. Just open one of them and you'll find a 10850 battery (LiPo/Li-ion) as a bonus, extract the circuit, it's really small and has USB-A output and micro USB input both 5 volts regulated (usually).

  • @misterunderline6092
    @misterunderline6092 Před 6 lety +2

    You can see the number of sold TP5410`s in the last hour on Ebay increasing after your Video xD

  • @AnirudhGiri
    @AnirudhGiri Před 6 lety

    I love this channel..

  • @CrazyCoupleDIY
    @CrazyCoupleDIY Před 5 lety

    Great info

  • @rollandelliott
    @rollandelliott Před 5 lety

    I need a battery pack that out puts 5v at 8a. is there any boost converter that can do this, or do I have to buy a few boost converters to accomplish what I want?

  • @LegalSkateboarding
    @LegalSkateboarding Před 6 lety +1

    +GreatScott! I've been wanting to get into circuit building but I have no idea on how to go about finding information. I'd like to learn how to think things out for myself instead of looking at pre-made diagrams of circuits (I'm currently looking into making unique guitar effects pedals for myself). Do you think you could possibly make a video dedicated to the math and explanation behind a few basic parallel and series circuits with multiple components? I'm sure a few others would benefit from it as well.
    *I'm also new to this channel :D

  • @x_gusto
    @x_gusto Před 5 lety

    Is there something like this that can boost up to 12v output for LED strip or will you have to then connect this circuit to another step up converter to achieve 12v output?

  • @professionalelectronics3158

    Was there a minimum current draw requirement from the load? Like how some boost circuits require the load to draw over 140mA in order to stay on?

  • @keen2461
    @keen2461 Před 6 lety +1

    Great video! Thank you for your time and saving us the time to test it ourselves. Keep up the great job.

  • @kamran_aghlami
    @kamran_aghlami Před 6 lety +5

    nice one, thank you! It would be awesome if you could make a video about transformerless power supply design, you know the one they make with capacitors ( sorry my field of study is computer science not electronics :D ) to convert 240v-120v AC to 5V DC.

    • @rogert151
      @rogert151 Před 6 lety +3

      Kamran Aghlami no transformer means no isolation, if a fault occurs you could potentially have line voltage in your circuit and that's deadly

    • @kamran_aghlami
      @kamran_aghlami Před 6 lety

      @rogert151 you are right, see? I thought this would make a good topic to make a video upon since the name is very tempting for some one who does not know a lot and who is trying to make lightweight and small circuits where transformers are too bulky to consider.
      I'd like to see musts and mustn'ts of such power supplies, formulas to calculate power delivery and such.
      and of curse I can google all of that, but such video is a need in youtube since there is not much already and our fellow friend @GreatScott! is brilliant at explaining stuff.
      So it seemed like a good idea to me to ask for a video like that, so i did.
      (apologies for broken english)

    • @kamran_aghlami
      @kamran_aghlami Před 6 lety

      @Jan Ciger Well I have failed to die by electrocution a couple of times already, enough to understand what I'm doing when I'm around main's lines, (or is it ever enough?) thanks for the notice though.
      I've heard some about how poor they perform, that's what I'm seeking. how Good/Bad of an idea it is to use them, dangers and hazards, why they exist then, formulas for power delivery and such.
      (apologies for broken english)

  • @TheBrassn
    @TheBrassn Před 6 lety

    Hello GreatScott, as a long time viewer I'd like to point out that you are really doing a great job, one can always rely on your expertise and your great videos.
    I also happen to be from Germany and wanted to ask you where buy your LiPo cells, chinese eBay sellers are not allowed to deliver them to us, as far as I know.
    Do you have any reliable and inexpensive source for those?

  • @haiaokuwa
    @haiaokuwa Před 6 lety

    With the separate charger and booster, didn't you have to replace a resistor to calibrate the charging circuit? Or is the newer 3 chip version smarter than the old single chip TP4056?

  • @TheJay6621
    @TheJay6621 Před 6 lety

    Wow !!!! exactly what I was searching for. I was confused that Is adafruit's 1000C is worth of its value ? After seeing this it is clear now. Thanks for your time and efforts. Keep going.. Love from INDIA.

  • @salvatiadivinorum5527
    @salvatiadivinorum5527 Před 6 lety

    Another alternative would be buying one of these DIY battery charger boxes which basically come with the case, get the circuit, desolder the battery connection terminals and you are good to go :)

  • @jimmycharmasson6581
    @jimmycharmasson6581 Před 6 lety

    Hi I am really impressed about your skills, did you already try to charge small battery capacity ? Under 750mah ?
    I would like to see a video about this 🙂

  • @ViciousP0w4
    @ViciousP0w4 Před 6 lety +1

    hello, since you already made a lithium battery pack, it would be wonderfull if you can make a battery for your motorcycle with LiFePo4 cells with BMS so the motorcycle can charge it.

  • @geekoid183
    @geekoid183 Před 6 lety +1

    Hi
    Have you ever thought of using small USB "Power Bank" circuits ? It's a great solution and it work perfectly for me ! Cheap, Small, With a screen or not, overcharge and discharge protect... (Depending on the circuit selected)
    In addition, they are very easy to find online or in a local store 🙂