DIY LiPo Charge/Protect/5V Boost Circuit 

this video clearly/directly showed how much patience,hassle,experience is required for making my own stuff

This is exactly the content I've been looking for. Explanation that is deep enough and doesn't waste time or beat you over the head just to make a video longer. Keep it up man! I love it.

I'd seriously buy this as a kit. Great job!

He bost He charg But also protec

3:03 _you are the only person I know who uses a _*_ruler to highlight_*

I'd love if you explained more why the first variation of your pcb didn't work properly in the video. The requirement for shorter and wider traces was probably mentioned in datasheets, so we have to give it more attention in our projects :)

A week ago I did my first smd soldering! It went very good thanks to your tips! Thank you very much!

LOVE THESE KIND OF VIDEOS!! u blond german nerd who knows how to shrink a like 3-4 weeks project in 11 minutes and gives the importance of showing its own fails as part of the process of learning. Thank you for making such a good quality videos!

As someone who knows how painful it can be to design, layout, and manufacture PCBs, you made it look really easy! Their software looks very much like Altium only web-based, and a few thousand dollars less too! A few tips for soldering SMT components: Make sure your Gerber files do not have a solder paste layer if you intend to hand-solder the components rather than a pick and place machine. This will mean your boards are (mostly) flat and free of excess solder which makes it much easier. If there is extra solder from the solder paste or HASL finish, then use solder braid/wick to remove it. Soldering SMT capacitors and resistors, apply solder to the PCB on one of the pads of the component and keep the iron on that pad. Using steel needle nose tweezers, slide the component onto the solder pad. Remove the iron and let the solder joint cool. To make sure it is flat to the PCB, rest the tweezers on the top side of the component with very light force and briefly touch the iron to the pad. Then simply solder the other pad. ICs are pretty much the same. Apply solder to one pin on the PCB, slide the IC into place with tweezers making sure the other pins line up correctly, remove the iron and let the joint cool. Make sure it is flat against the PCB, then solder the other pins starting with the pin most opposite. I find this method more reliable and produces less thermal stress than heat reflow with a hot air gun. If you are going to heat reflow after soldering for presentation, try using flux jelly in a syringe from the usual suppliers. It helps for faster reflow and a nice shiny finish. Makes soldering a lot easier for me! Hope this helps! Keep up the great work with the entertaining and informative vids :)

A big thing that helped me building buck/boost converters is knowing the ideal values of the inductor without needing to reference the datasheet each time (especially with general purpose switch controllers that might not have the specifics for inductors). I found an equation online for estimating the required value of the coil in a buck/boost converter, I then plugged this equation into a spreadsheet so if I need to build anything all I need is the input voltage, output voltage, frequency, and max current. This helps save space on the board and money in your pocket rather than going straight for the largest reasonable value. Not a huge savings unless you make a lot of boards but it's still helpful for making good buck/boosts. The value in henrys is L=((vin-vout)*vout)/(vin*Imax*hz*0.35). Thanks again for yet another awesome video Great Scott!

I don't know ....why....I just love your videos...I am addicted..you are really great in electronics and all. I am watching your channel since last 7 to 8 month but you always inspire me...thanks for such a nice and good content. Love from India...😀😀😁😁

Warts and all, thank you for sharing. Always worth the time to watch anything you post👍🇬🇧

Excellent job, as always. You could use a Dummy Load, maybe a next project? regards

I am not worthy. You are truly an engineer. I love your presentation style and seamless editing. I learn so much from just 1 of your videos. Keep broadcasting.

Boost 3.7v to 5v so that the board being powered can regulate it down to 3.3v

This guy does makes amazing videos - but I don't know how many more I can watch. I think I'm approaching the line between being inspired to try some of more more ambitious ideas and feeling discouraged that he accomplished more in one video than I have in my last nine projects combined!

You are the f***ing best RU-vidr I know!!! Please keep up the vids, they are awesome. They help me with some many thing.I always have questions about these things and I always just find the answers on your channel.

I just started using easy eda and it by far the most intuitive pcb design software I've used.

Can you please describe what was the problem with your problematic layout. Really curious. I see no big differences in your first and second layout so will be appreciated for detailed descriptions.

Wow. 3 in one board Edit: forgot to finish my comment lol. Anyway, I used your easy Eda schematic in a project of mine and added the traces to a single board. It’s impressive. Works perfect and now I have a complete. Present for my 10 year old brother. Thx man. This is the type of channel I like on RU-vid.

Hey! I ordered your PCB and the components. Looking forward to putting the parts together. One thing you should have mentioned: the shipping cost. Its not terrible but 2$ for the PCB and 7$ for shipping is something that should be mentioned. Cheers

this video clearly/directly showed how much patience,hassle,experience is required for making my own stuff great jooooob broo and please we need more videos from the technology, u are genius and god bless u,

That custom board service sounds amazing! Coupled with that diagram app and it looks like you could prototype anything super quick

Very educational! If advertisement was always done this way I wouldn't mind it. I just created an account there and will be ordering my next PCB from there. Very convenient! Thank you!

can you sell these on ebay for us?

I like the way you do presentation, printing out datasheet and pointing out important detail using highlighter pen on the datasheet. Keep making good video

extremely cool of you to just continuing to put out high quality content for free!

I love how 1 day difference in build time cost 29$.

I have no clue what is going on, but I still watch his videos.

Now a days you are earning very much as most of the video ofyour I am opening is showing ads great(keep it up) I am loving watching your videos

6:07 it says IDONTKNOW in file explorer.

Thanks for all videos you make. Please make a video on curcit for output of 5V and current of 2A

I understand this video is intended for people to DIY their own PCB, but is it possible for you to put those PCBs on ebay or something to buy? I would be totally cool with spending a few bucks on a pcb like that (extra revenue source?) instead of going to the trouble to hand solder SMD components and hope it works.

this is so cool to watch i hope I'll have the same amount of skill and knowledge in the future

I have fallen in love with this channel

Probably too late for you to still read up on this video but I have a question Why did you connect CS on the FS312F-G to ground on the board instead of BAT-? Or why did you connect BAT on the TP4056 to ground with a 22μF while the datasheet says 10μF? (Also in EasyEDA you are supposed to mark not connected pins with the X no connect flag from the wiring tools)

I had struggle in charging and battery management Circuitry.. Awesome Work.. so much patience.. Great Scott-Great Work as always.. Thanks for your time and efforts.. Love from INDIA.

So, we can use EasyEDA to design, publish AND build boards? By that I mean, their partner will sell and send the BOM to me?

ONE OF THE BEST THING YOU'VE EVER SHARED!!!!

Wow ... your work is (as mostly i saw) very accurate and you did double (and tripple) check everything. Great job! It's satisfying to watch you work

Can this be used on 18650 cells too?

geeze ultimate diy.... your own pcb board... im still trying to figure out how to wire existing pcbs i wanna play with... nice

I buy One 11.6V ready made lithium ion battery. It not contain any protection Circuit or balance Charging connecter so what I do for balance charging my lithium ion battery pack.

this is a really well done video, I can tell you put a lot of effort into the timing and pacing of the video. It shows all of the detail while keeping the video short enough to be interesting and it is really perfect, so excellent job as always!

Would you sell these fully made ?

Awesome man. Stoked to see their board factory was fast and accurate. This has convinced me to give them a shot.

Man, I've just noticed that you already have 600k subs. I've been here since the 10k days, keep it up man! :)

For USB set output to 5.5V, don't forget about USB connector "eats" ~0.22V on current ~1A, so USB load gets ~5.2V

Hi GreatScott, can you explain what the problem was with the first version of the board? In my last video I made a mini boost converter by putting an MT3608 on an SMD adapter board (see ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-K7Lv5FWTX9Y.html ). The output current I measured seemed to be quite limited and in my case the capacitors are too small. I also think the small 22uH coil I use is too light for higher loads. Thank you for making your videos. They help me a lot to understand things! +1

The TP4056 has a solder pad on the bottom side to reject resistive heat. As a good thermal management practice, there should be multiple PTH connected to the bottom layer and a large continuous plane on the bottom layer to act as a radiation plate. Also, if the W*h of the lithium cell used is less than 4 NiMH cells, there is nothing to gain in run time, only lower weight and convenience, if appropriate.

Aren't Li-Po batteries damaged if their voltage decreases below 3.2 V, meaning that your over discharge protection circuit isn't harch enough? :)

Congratulations on this awesome project, it must have taken you many hours of research going through all the datasheets. Thank you for sharing and please keep producing these great videos.

Got notification about new video, came, LIKED, started watching it.. This much I love GreatScott. :)

You are amazing at your craft! I'm learning so much more from you than my professors at my university. And this video clearly explains how I'm going to approach my next project. Thank you so much for your videos.

Thumbs up if Scott should make a vid on how to assemble a quick charge circuit just like motorola's charger. That would be awesome :D

I just ordered a batch of boards and parts! Looking at the layout, I noticed the ground/thermal pad on the TP4056. This would be tough to connect with plain hand soldering (I also noticed in the how-to-solder video you just attached the leads of this chip and seemed not to solder the pad underneth) If i run in to heat issues with the TP4056 I might make another batch of boards with some vias on that pad and a larger copper region added on the back layer as a heatsink. I saw in some other tuturials (Including one by Dave /EEVblog) that you can use this technique to solder the pad from the underside, wicking solder through the vias with the help of some flux gel. Never made PCBs or used Easyeda but in 20 minutes or so I was able to cobble together the changes I mentioned above. This is fun!

Thanks for the video. I've considering buying expensive breakout boards for individual chips and bodging the whole thing together for a project that I'm working on, because I'm nervous about designing my own circuit board. But after watching this video, I think I have the confidence to get my own boards made. Cheers!

Not too long ago i helped a friend designing a circuit board. 2.4x2.3 cm, ~30 connection-pads to diferent boards, 2 connectors, voltage regulator, 9axis sensor, infrared sensor, molex connector - and a freaking 40 pin chip. took us 2 days to get all the traces on the tiny board. When we finally managed to squeeze in all the connections we enlarged the power-traces. The datatraces were 0.154 mm, power was 1.5 mm :P better overkill than sorry. And darn - all those wires.... we had to skip layers so often to fit in all the traces that we had something like 150 holes on that little board.

Perfect Timing of this Video, the notification came out and watched this immediately really need this tutorial

@ 0:10 Golden Axe game ! 😍😇🤗😆👌👍 I remember that one !

Built this using my DIY re-flow oven! It works great!! Thanks!!!

One problem I've been facing with TP4056 with protection board - and that is present in your circuit as well - is the 1A limitation. It's great for smaller projects, but for projects where you need more current it let you down. Power banks, for stance, smartphones demand up to 2a. So what I end up using is the unprotected board in conjunction with a small BMS (the model depends on what I need). So, it would be a good idea to create one unprotected as well, for your future projects. ;)

You make awesome videos GreatScott! I'm learning a lot watching all of your videos. I understand electronics to a limited degree with a solid foundation in passive components but designing with ICs trip me up. The information provided in your videos along with the resources of EasyEDA designing software, LCSC parts store, and JLC PCB will greatly help in my future projects. I hope you keep making high quality, informative, in depth, interesting project videos, even if a few of your more advanced videos are difficult to grasp, I not only steadily understand more of your content but electronics design more with every video.

This is awesome dude! I've been waiting for something like this!

THIS IS THE VIDEO WE'VE ALL BEEN WAITING FOR

This is great! I had the same problem, trying to find an all-in-one board to power and charge my small projects. I think I'll order a batch of boards and assemble them myself. This is going to be fun!

I wish I could do things like this. I am trying to reach my self or learn as much as I can. I'm a little old for school. but I use Google and RU-vid. my goals are to build a inverter to power my off grid home. and some big DC motor controllers. and a battery charger for a electric vehicle conversion. some reason I don't like to buy anything. I want to make it myself . someday I may reach my goal. it may not be how I want to. but maybe I will get the projects done. but there is a lot of other things that I'd like to build. I have learned a lot in the last year and 9 months. that's when I really got into electronics. the DC motor controller is what got me started. I have worked in electrical for years. home and auto. so I have a little knowledge to start. your video's are a great help. you explain things well. and at a pace I can keep up with. I haven't gotten in to the smd things yet. still tinkering with through hole devices . but hope to improve my work station. and buy better tools. a good temp controlled solder iron. and supply's. maybe try etching PCBs. great video as usual. thanks ...

Man you really are amazing, sometimes I'm just in awe... thanks for everything you do and the way you explain it, that's how I'm able to learn!

Dieser Schaltkreis wird die Welt des Akku aufladens revolutionieren! 😂🤣

Very impressive and persistant work. Having to watch it a couple of times to keep up with you.. Thanks for sharing and for the pcb info too

Short circuits set the voltage between the VCC and GND pins of the power supply to almost 0V.

Im learning a lot from your videos, thanks !

The MOSFETs need a pull down resistor, otherwise the whole thing becomes randomly unstable.

You can use DW06 instead of DW01 because it contains protection MOSFET internally.

I think once I get paid for the electronics project a friend commissioned me to do, I'm gonna use some of that money to get the parts and PCBs so I can assemble a few of these myself for SMD soldering practice! :)

This project, with the gameboy case and RaspberryPi emulator is seriously cool. I might make me one of these

Thank you! I have been needing a charge circuit for a while now.

Thanks for making the Gerbers available!

Ur awesome bro!! I wish I could be ur student I love electronics , when I was a child my dream was to become a electronic engineer but I never learned enough it's my passion to pay attention but I made alot of mistakes so I am trying so hard to get back on my toes!!! I appreciate ur videos very much thanks

Awesome Scott! I liked this very much. Cheers

Awesome I can't wait to see your gba sp build I been researching a lot on how todo this and fit everything in

This is awesome! Just what I've been looking for to continue a project I've had on hold. Thank you so much!

Cool! I love eatching your videos. I learn something new and I feel I have not wasted my time. You can only eatch so many 'Fail' videos and so many ' Why Japan.. Why?' videos in a lifetime.

Fantastic work man.

I just realised.... your LiPo cell (typically) already has all of the protection included. If you used an un-protected 18650 (for example) this board makes sense.

Fantastic video thank you very much for posting it. This has really peaked my interest in doing something similar especially based on the pricing of boards and components. Thanks again please keep it up.

FYI: Many LiPo pouches come with built in protection circuitry (DW01A with 8205A) on a tiny PCB.

Full bridge rectifier right there.

Finally, an alternative to the powerboost 1000c!

Looks wayyyy cheaper than ExpressPCB. Thanks so much! Good video!

Only thing its missing is a low battery warning output pin like the Adafruit Powerboost 1000c this would be a perfect drop-in replacement for projects where you need that feature.

Such a great video. You are truly inspirational man!! Keep these great videos coming!

You're really an intelligent guy

You are awesome man! As always, great video!

This is cool. I have to try the easy eda. I want to learn pcb design.. Start off with something simple and build from there..

I have no idea what the hell is going on... But, I'm still watching!

You can also use a power bank module

oh my god... jlcpcb is so nice and cheap... the quality is also very professional... thank you so much for this information!!! ((;

your video is very helpful. but i cant find any documentation for LiHv battery type. can you guide.

Your video editing skills are awesome dude!