DIY - 15000mAh Power Bank - With Salvaged Batteries (gets charged with 3A) 

UPDATE: Instead of XL6009 I suggest you use the MT3608 boost converter, it's much stable when the cells get low on power.

The project is amazing in general but the wizardry of getting all of that in the enclosure was the real brilliance!

Finally, someone comes around and shows HOW a decent power bank is made DIY. You made a superior product, so in my opinion, it doesn't matter if it's just a little bulkier.

Thank you for not putting crappy background music.

I just love the way you do things! Its not factory looking, but makes it more real for those of us messing in the garage!

this man know what he is doing, keep the work! for me as a newbie, this is explained very clear to me.

My compliments on the ways you think about the safety components of a build like this!

this is the excellent diy powerbank I have ever seen in youtube. This is very eazy to build and your video is perfect to build the powerbank. Hatsoff to your idea and design.

Thank you for another real nice video. Also your english is very good and easy to understand.

Very good job 👍 I like that you're measuring and comparing overall parameter stability.

A really well made video. I liked A LOT the fact that you used fuses on each 2 cells group instead of just connecting them straight in parallel. This is the kind of DIY videos I like. Keep up the good work!

Good explanation and easy to understand language at a moderate pace. Very useful video. Thank you Sorin. One of the best video tutorial with near to exact and real values. Best of luck on your journey of spreading knowledge.

Best powerbank build i have seen so far way to implement protection to make sure there is no rish of explosion or anything

My phone stopped overheating after watching this video! Great job, Sorin! Greetings from Poland.

There is no way someone can make a better video on how to make a powerbank. I really like that you pointed out the difficulties someone may encounter with such a project. let's all hope that the other channels out there will do the same in the future.

Excellent work Sorin! Thank you for sharing

Excelent execution on the explaination, I've understood it much better and much deeper, now i can move on to my future power generator projects that is completely pended for a very long time,my big problem is batteries, because they have limitations,excelent job man and thank you

I love the circuit simplicity. Thank you very much 😊

Bravo omule greu mai gasesti oamenii pricepuți ca tine mai ales in romania

Clever design and a brilliant instructional video. Concise and informative. Thank you.

自己做一個比買一個成品貴。非常感謝你的電池倉DIY視頻。

i must say brother u r one of the world most organised and standard and clear human..... and for me honestly u r one them from today "MY PERSONAL UNKNOW FAVOURITR's' .........tq

Wow, very impressive work. I think I might give this a go, seems like a fun project!

I thumbed you up because you are a great DIY-beginner friendly Engineer.

Really cool thanks for sharing, I will try one when I get through a few chapters in my Electronics for dummies book. 😁

Power Bank with full electronics research and precautions, Great 👍

Happy 76k subscriber🥳🎉 You deserved more subscribers

New subscriber here, most of your videos are clear and amazingly explained sir. Thanks, I'm learning a lot from you.

Yeah dude most informative channel way better then the other ones

felicitari,mai rar oameni care sa fie interesati de asa ceva,mai ales in Romania!

Yey, it's been a while since your last video. Great video as well Sorin ⭐⭐⭐⭐⭐

I made this power bank! Confirmed working and a great way to create a DIY USB 2.0 Power bank. I think I need to get a better boost converter but it otherwise charges my phone and works as a powerbank.

I love watching your videos. Thanks for the good quality content...

Really you are the best , we missed you since a long time , waiting your new video's.

Bro your projects are awesome I love watching ur videos they are clean diy .keep it up

Nicely done. Thank you for sharing your knowledge.

Nice video shot, keep it up, thank you for sharing it:)

best diy powerbank yet!

Nice video. Very good engineering work.Keep it up ;)

Schematic at 5:04 . Thanks Sorin!

finally, diy build with datasheet keep it up

Nice video mate. Subscribed 👍🏻

Perfect !!! That's what I was looking for for a long time.. I liked, subscribed and I will share your channel ! Kind regards :)

... just ordered the parts :) thanks for the shematics, i didnt know i could actualy connect all the negatives together :D

Congratulations on the great video

These are the guys who make stuff we buy from the shops

As usual great work! :-)

your work is so clean and clear. and you are a genius, really I like your work so much.

Great project! I'm going to give something like this a go!

Omg Sorin your awesome as usual

Wow, you have made a good power bank

Cool project! Many thanks.

sorin...ur videos motivate me.love all videos watch again and again

Thanks sir for all the work and sharing! God bless you and family! Cheers|!

Nice job bud, Cheers and keep up the good work :-)

Excellent 💯 Même en anglais on comprend très bien merci beaucoup 👍

Thanks for uploading bro... I will definitely try this..

I love it. Go Sorin! You have to use the hell out of it to improve it.

Now, this is what i'm talkin about. I'm about want to make by my own using tutorial in YT, but non of them tell if the PowerBank itself have protection....And lastly, i found this, GG

Foarte tare! Tine-o tot asa!

Excellent project

Sir Sorin your videos were very interesting and creative. Thank you for making these videos. I hope you make a video on how to salvage a lcd of a defective laptop. I would like to see your version of it coz the other videos arent that good like yours. Thanks in advance. Kudos to you!!

Nice effect resistor, thanks

Bravo Sorin!👏

Thank you for this great video, really great

Thx! Now i can build my own powerbank with faster charging

U are the best Well explained Best maker Love from India ❤️

Great video, your a legend!

Sir Sorin your videos were very interesting and creative. Thank you for making these videos. I hope you make a video on how to salvage a lcd of a defective laptop. I would like to see your version of it coz the other videos arent that good like yours. Thanks in advance.

amazing video 😄

Thanks for this ... I will try to make one .

Extremely talented

Remember, safety is number one priority 🤣

More geniuses helping out the minorities 🙏thank you friend I will share at my school my teacher is going to be surprised Monday morning😂😂😂😎✌

Good build. I like it.

Very nice. Thanks for sharing.

excellent work.this explanation

This diy power bank is very good, with some updates can get better, I'll do one, for sure (if I can get money because the situation of Brazil is a bit difficult here).

Excelent Project !

Very useful, thank you!!!

You are great. Thank you for the video.

Fain de tot. Mă bucur că am dat peste canalul tău. Chiar acum o jumătate de oră am demontat o baterie veche de laptop și mai am vreo 3-4 prin casă. Am să scot modulele din toate și-am să le verific să văd care mai sunt bune.

This is very good power bank. The power bank have a fuse, when chip have short circuit, blow the fuse not shorted the baterry.

Great video !

Nice work

Good job my friend 👍🏻👍🏻👍🏻👍🏻

very nice work

Very smart solution

awesome project

Bro i love your video

Nice, next video i hope you make a mini powerhouse for camper. Thanks

Prea misto omule

Super!!!exact proiectul pe care mi-l doresc

Dutii āi ci tarii iesti.. bravo 👍

Really, good job man.

Nice video :D

Awesome bro you need 1 m subscribers

In stores most of the power banks use large single cell type LiPo batteries or something similar like a huge phone battery. Basically it's just big and flat. I like the idea of adding in your own cells when the old ones wear out. Which you can do if you have a soldering iron, you need a pretty powerful soldering iron to solder things to the battery terminals though, as they suck the heat away fast into the battery and that heat can easily warp plates and damage the internal battery. So you need a soldiering iron tip that is incredibly hot so you can do the job fast. You probably need a soldering iron tip of like 400 degrees Celsius at least to do this. I wish they just made a cool empty battery bank that you could add say 8-16 cells to. And you don't have to solder them in, instead being held in tightly with high quality springs. And it would have USB output and 12v output, as well as input charge via USB or AC adaptor charging for faster charging. This would be really cool, because people could easily turn a bunch of laptop batteries very easily into a useful battery in their home. I mean just 16 average laptop cells combined will give you at least a 35000 mAh battery. Maybe they make something like this already, I haven't looked. But I would rather something with useful functions and easy to put together and replace batteries, instead of something I have to solder together while worrying about damaging the cells and needing an expensive high temperature soldering iron etc and then having a pain to replace them.

Very nice 👍👍👌

Awesome dude, next can u make PB with more capacitiy and quick charge feature .