Most exellent of you for not editing out the mistake in wiring the second set of sensors. It is so helpful for us to see how you approached and managed this uncomfortable situation in a thoughtful and precise manner. I applaud your humility.
This might be the best video I have seen on DIY LiPO4 battery construction. Certainly the best explanation of the reason for balancing, differences between top and bottom balancing, etc. Very well done video!
I agree. So many DIY videos that lack complete explanations. Also, seeing his mistakes is a good indicator of where things could go wrong, and, what to watch out for. Excellent Video. Thank you.
16:40 All the cells WILL indicate the same voltage as they are connected in Parallel. Only way to measure individual voltages is to disconnect either positive or negative terminals. The end result stays the same as you were trying to get the cell voltages closer to each other which you achieved by charging in parallel. The rest is very informative for the newcomer to LiFePo4 batteries. Good video sir.
This was a great video, before I was confused about building a battery and now I'm ready to try it myself and I'll probably watch this a few more times.
An excellent step by step breakdown for mere mortals who are interested in building their own packs, you have done exceptionally well with your presentation, taking the time to explain what is important along the way and WHY it is important as well. Thank you very much you have another subscriber.
You probably didn't plan it, but making a mistake with one of the BMS wires at first was a nice demonstration of what and why you're testing the connections :)
This also shows that any one even an electronics guru can overlook a detail that could cost and shut down a project. Great demo of double checking your work. The signs of a good teacher that is unafraid of admitting he is human. Thank You. I now feel obligated to subscribe.
Just came across your video showing how you build a LFP battery. EXCELLENT! Wish I'd had it before I built mine, although they are working wonderfully. thanks again.
Got to give the credit were it is due... and sure its due to you, best teach skills I've seen by MILES (and I've watched not hours but weeks on tuts) best aproach...viewers know nutn 🙂and you did nicely xplained point after point no MORE or LESS info and a clear and good view on the task at hand, I know when reading these three lines it dnt look like a big deal but its a fact that the most cant cant get that tutorial vid just right... soooo, not the teacher but THE MASTER 🙂 🙂
I'm in the process of converting my scooter to electric using the existing CVT (modified to reduce power losses). The mechanical part is a piece of cake for me but building the battery turned out to be a major headache. Thank you for explaining it in an easy to understand manner.
Good video. helps with troubleshooting too. Importance of balancing was well discussed, as was BMS and care in installation. Good to make an error and demonstrate recovery. I would add 1) mention how you were careful with box cutter, 2) verify that the brass/silver = -/+ was true polarity in ALL cells, 3) I work in an area where a fire could be easily controlled, or at least reacted to. 4) drop your deep socket and watch out! short city 5) wiring for charger on the inside of terminals? asking for trouble.loose wire ,ditto. 6) "I don't see smoke. Good" Strong work
Thank you for this video. It is (by far) one of the most helpful and informative videos on batteries I have seen! I'll be coming back to this a lot as I build my own.
I might be missing something. @16:22 you are measuring the individual cell voltages but they are all parallel connected. Isn’t that the reason all the voltages are pretty much the same? Wouldn’t that be better if you remove the wire and measure them individually? Thanks!
At 16:36 you are testing cells connected in parallel so you are not checking the voltage of an individual cell, rather you are checking the voltage across all the cells. The reading will be the exact same along the wires (baring a large current moving through a small wire causing a voltage drop). Also you initially set the power supply to 3.6V in the hopes of charging them to 3.65V which can't happen. I see later on that you increased the power supply voltage to 3.7V.
also the testing of the 4 feet wire on the end. he does not know what copper resistance is, or at l;east does not know the voltmeter is of high resistance, so in test it does not matter. with ballancer you will have current and so will have copper resistance that is relatively more important.
@@LoekiNL These were my two criticisms as well. Though in the case of the BMS sensor wires I'm guessing that the BMS current draw is not high enough to produce any significant voltage drop.
thanks for this video. thanks for this. the mistake is a humble process that you did not remove. It will also help me to be careful. thanks much and God bless you.
When you top balance, use #10 or larger leads from the power supply, put terminals on both ends and don’t use it the banana plugs or alligator clips. Connect the leads to the two common rail taps but at opposite ends so no path is shorter or longer than another. Not at the center as shown during balancing.
I realize tha this video is 3 years old, but I just discovered the "magical" difference that Lithium Iron Polyomer has compared to Lith-Ion I have been using. I know that there is a chemistry that requires the pack have a constant positive pressure. Is that LiPo that I am thinking of? And if this video is 3 years old, what are you up to these days? My subscription is earned. #trustory
This is a wonderful explanation. It is most interesting the mistake you made in connecting the balancing cables. This has been my worry though I wire correctly but I imagine what would happen if such error occurs. Thanks greatly for sharing the video.
Красиво получилось. Одно замечание. Между банками классно бы поставить листы диэлектрика. Сами банки у вас подключены между собой шинами. В случае если перетрется, оплавиться, расплавиться, да что угодно случиться с изоляцией самой банки у вас будет К.З. И в отличие от ленты из никеля контакт хороший. Можно еще подумать о плавких предохранителях. Но, это уже на любителя. П.С. Спасибо за видео.
I would like to say thank you very much I thought your video was very good I found that you explained everything very well from start to finish Cheers Anthony
Very professionally explained! Thanks you. One question: what resistor do you use to avoid the spark at the convertor and where do you connect it to discharge the spark?
for 12v use 12+Ohms 24v - 24+Ohms 48v - 48+Ohms this type of resistance will allow only 1 amp to flow. You just need to do it once when connecting wires to inverter terminals.
Hi from Australia Very Very much enjoyed you video , Great information and easy to listen to. And professionally presented ............. Extremely helpful A big thank you ( Liked and Subscribed )
Thank you for The good explaining and moore, it's easy to think that you maybe are a University teacher or something... Greatings from SWEDEN for a very PRO Channel! 😀
VERY GOOD VIDEO - everything is carefully planned for easy explaining! A near perfect explainer video. I suspect your channel is very underrated - as an electrical engineer myself, I have a feeling that it won't take long for your channel to grow exponentially! Subbed & Liked!
Спасибо за тест. Не согласен только с последним доводом - провода от BMS до ячейки обрезать по длине не рекомендуется. При использовании ячеек необходимо снять все наклейки с предохранительных клапанов что между клемами. Час назад сделал заказ на 16 штук (по вашей ссылке). Собственно от туда я сюда и пришел)) Еще раз спасибо за видео и всего наилучшего!
Brother excellent detailed video you have answered all the questions in my head on how to start off lifepo4.. Many Many Thanks for your videos! Happy New Year. Gokhan from London
Your remark about shortening the BMS wires is true if they are only used for measurement but not neccesarily true if they are used for cell balancing. When you measured with your meter you are only loading the battery with a 10M Ohm load so drawing 50 microamps. If the BMS is active balancing it can only read the voltage at its end of the wires and you will get some voltage drop across these wires which will be different if they are different lengths.
merhaba . 60 & 72 v bir sistem kurasaydınız izlenme oranlarınız çok daha fazla olurdu.Bu videoda çok başarılı olmuş. çok fazla emek harcadınız.teşekkürler.
enjoying the video, one comment, checking the individual cells when they are still connected in parallel will give the same voltage for every cell. It doesn't matter which one you check, you are really just checking all, every time ....
Fantastic Video! Very informative and educating! Only small suggestion I have: It helps the batteries to last longer if you compress, but I think you know that already.
The parts with shipping for my 24V 200ah Battery is about 800.- plus bms and small parts all in all less then 1000.- € against some commercial resellers who wants to get 4500.- for the same setup. I also bought 2x 290 Wp Solar cell for 90.- plus a mppt 200/20 with price tracker from amazon for 130.- So all in all i can now build up a great solar system with 580Wp and 200ah Batterie for less then 1400.- against commercial seller who made me offer with minimum prize 6500 .- up to 8000.- and many weeks waiting time. Sometimes its really worth watching videos and diy it yourself. And if anything fails while i am on the road i can fix it myself and have a deeper understanding whats going on.
Thank You for this very good video, its exactly what i am planning to do, already have ordered cells from China an BMS which looks almost exactly the one in your video. Very good explanation and very helpful indeed. I feel now much better prepared to do it right and i am not a professional at all. You did a very good job with this video.
I'm glad you included that overlook. It shines a light on how important it is to double check things. Even if you fried your bms, the lesson would be long learned. And I really appreciated the texts on the screen as you moved along. I made notes! Helped me understand C ratings a lot better. Thanks!
Thank you. This video has just the right amount of detail that I was looking for re: how to create my own LiFePo4 battery bank. The excellent video/audio production quality is an added bonus. New subscriber here. PS: But I'm unsubscribing if I get shocked in the process! Just joking...
here is a quick tip, connect all batteries in parallel initialy for a couple of hours before connecting them in series, they will all equalise to the same voltage
I was gonna say... isn't he missing a step here, which is just leaving the whole pack set up in parallel, with the copper wires, for a while to let all the cells balance out on their own? I'm still learning this stuff myself but seems this is what other DIYers do.
I have learned so much from your presentation, thank you. Excellent presentation of data with the discharge rate chart...helped me understand the issue exactly, also pointing out the different battery configurations possible...you covered alot and helped me immensly.
I LOVED THE VIDEO AND I LIKE THE CELLS A LOT I WILL BUY THIS BATTERY AS I THINK THEY ARE THE BEST ALSO TRY AND BUY THE THINGS I NEED AND GIVE IT AGO FOR £500 OR JUST UNDER 24 VOLT 2OO AH IS WHAT I AM LOOKING FOR PLUS I BE SAVING FROM BUYING IT ALL SETUP. I AM SURE I WILL COME TO THIS FOR MORE INFO IN THE FUTURE TO SHOW ME HOW TO SET IT UP CORRECTLY LOVELY EXPLANATION ON HOW TO SET IT UP.
Very informative. I would say however care needs to be taken with these Aluminium case batteries. With some of them the case is connected to the -VE terminal of the cell. When the cells are stacked together if somehow the plastic wrap on the cells rubbs through it can cause a short and possibly a fire.
@@fraserlynn9488 Some of the cells I have seen have plastic caps that sit on top and bottom and this makes a gap (about 5mm) between the cells. This could be re-created using some type of insulator between cells.
that cutoff would I guess be because of the cutoff settings i think your BMS came preconfigured for LiPo instead of LiFe and there is a huge cell voltage difference. LiFe is 2.5v - 3.7 where LiPo is 3v - 4.2v
Amazing, I was thinking of making the same battery setup and this helped a lot, thank you. i do have a few questions, how do you find and use the correct kind of BMS for different configurations of batteries with different voltages. And how do you charge and find the correct kind of charger. A video on this topic would be greatly appreciated, thank you again.
BMS: usually there few types of BMS on market: - one that supporting nominal voltage 3.2V (LiFePo4) - one that supporting nominal voltage 3.7V (Li-Ion) - and another that supporting a wide range of voltages (configurable BMS like I use in this video) I prefer configurable BMS, because it gives me more flexibility. Charger: In this video, I'm using a power lab supply that could provide voltage from 0V to 60V. So it's not a real charger. To select a charger you'll need to decide what kind of battery you are going to use and what is going to be MAX pack voltage. For example, in this video, I'm using 16 LiFePo4 cells, max voltage for cell is 3.65V, so 3.65*16=58.4V. So charger voltage should be about 60V, and BMS will control MAX voltage. I'm preparing a video about my entire solar setup, planning to release it in Feb, will try to cover more in this video.
@@SolarEngineering Thank you very much, I look forward to your video this month, you have a unique and great way of teaching, I appreciate your time. Thanks again.
Most exellent of you for not editing out the mistake in wiring the second set of sensors. It is so helpful for us to see how you approached and managed this uncomfortable situation in a thoughtful and precise manner. I applaud your humility.
thank you for the feedback, appreciate it.
This might be the best video I have seen on DIY LiPO4 battery construction. Certainly the best explanation of the reason for balancing, differences between top and bottom balancing, etc. Very well done video!
I agree. So many DIY videos that lack complete explanations. Also, seeing his mistakes is a good indicator of where things could go wrong, and, what to watch out for. Excellent Video. Thank you.
16:40 All the cells WILL indicate the same voltage as they are connected in Parallel. Only way to measure individual voltages is to disconnect either positive or negative terminals. The end result stays the same as you were trying to get the cell voltages closer to each other which you achieved by charging in parallel. The rest is very informative for the newcomer to LiFePo4 batteries. Good video sir.
yeah I missed that step, thanks for letting me know. And thank you for kind feedback.
))) that is what attention to detail is ! Although the mistake was obvious once you know .... but I did not see it until I read your comment !
Yep lol
Best DIY LifeP04 so far, in a similar video to this, i have to go through about 5 videos just to see to the end.
The best splaning ever made. Congratulation! Very Good Work man!
Your description is very good. You explain step by step what must be checked before entering the next stage.
Glad it was helpful!
This was the best explanation of how to build. You explained each step vs just rushing through.
thanks!
This was a great video, before I was confused about building a battery and now I'm ready to try it myself and I'll probably watch this a few more times.
glad it was helpful.
An excellent step by step breakdown for mere mortals who are interested in building their own packs, you have done exceptionally well with your presentation, taking the time to explain what is important along the way and WHY it is important as well. Thank you very much you have another subscriber.
Much appreciated!
You probably didn't plan it, but making a mistake with one of the BMS wires at first was a nice demonstration of what and why you're testing the connections :)
totally unplanned, glad that I didn't burn BMS
@@SolarEngineering You showed why it's important. Bravo!
This also shows that any one even an electronics guru can overlook a detail that could cost and shut down a project. Great demo of double checking your work. The signs of a good teacher that is unafraid of admitting he is human. Thank You. I now feel obligated to subscribe.
"OK. I don't see smoke." LOL
This was an *excellent* video. I learned a lot. Thanks so much.
Glad to read that! Thanks.
Just came across your video showing how you build a LFP battery. EXCELLENT! Wish I'd had it before I built mine, although they are working wonderfully. thanks again.
glad it was helpful!
Got to give the credit were it is due... and sure its due to you, best teach skills I've seen by MILES (and I've watched not hours but weeks on tuts) best aproach...viewers know nutn 🙂and you did nicely xplained point after point no MORE or LESS info and a clear and good view on the task at hand, I know when reading these three lines it dnt look like a big deal but its a fact that the most cant cant get that tutorial vid just right... soooo, not the teacher but THE MASTER 🙂 🙂
I'm in the process of converting my scooter to electric using the existing CVT (modified to reduce power losses). The mechanical part is a piece of cake for me but building the battery turned out to be a major headache. Thank you for explaining it in an easy to understand manner.
nice, glad that video helped!
I'm on exact that same path with the same findings
Good video. helps with troubleshooting too.
Importance of balancing was well discussed, as was BMS and care in installation. Good to make an error and demonstrate recovery.
I would add 1) mention how you were careful with box cutter, 2) verify that the brass/silver = -/+ was true polarity in ALL cells, 3) I work in an area where a fire could be easily controlled, or at least reacted to. 4) drop your deep socket and watch out! short city 5) wiring for charger on the inside of terminals? asking for trouble.loose wire ,ditto. 6) "I don't see smoke. Good" Strong work
really good points, thanks
Wow I'm learning more from this!
May you live longer SIr!
thank you for the feedback!
Thank you for this video. It is (by far) one of the most helpful and informative videos on batteries I have seen! I'll be coming back to this a lot as I build my own.
appreciate your feedback
I might be missing something. @16:22 you are measuring the individual cell voltages but they are all parallel connected. Isn’t that the reason all the voltages are pretty much the same? Wouldn’t that be better if you remove the wire and measure them individually? Thanks!
that's correct, missed this step, busbars should be disconnected.
The best explanation in youtube on DIY battery pack ! 👍
appreciate your feedback
Thanks for taking time to share your knowledge.
Looking forward to working this out. Randy. helperdude2016@gmail.com
Always learn more when I watch your videos! Thanks, J
thanks!
Thanks for the video, it's very educational for a person like me without any experience.
thanks for the feedback.
@@SolarEngineering good work
At 16:36 you are testing cells connected in parallel so you are not checking the voltage of an individual cell, rather you are checking the voltage across all the cells. The reading will be the exact same along the wires (baring a large current moving through a small wire causing a voltage drop). Also you initially set the power supply to 3.6V in the hopes of charging them to 3.65V which can't happen. I see later on that you increased the power supply voltage to 3.7V.
This is what I noticed also immediately. Just checked the comment to see if i was the only one. Does this guy know what he is doing?
also the testing of the 4 feet wire on the end. he does not know what copper resistance is, or at l;east does not know the voltmeter is of high resistance, so in test it does not matter. with ballancer you will have current and so will have copper resistance that is relatively more important.
@@LoekiNL These were my two criticisms as well. Though in the case of the BMS sensor wires I'm guessing that the BMS current draw is not high enough to produce any significant voltage drop.
thanks for this video. thanks for this. the mistake is a humble process that you did not remove. It will also help me to be careful. thanks much and God bless you.
glad it was helpful!
Hey bro how long take them to ship to you?.
When you top balance, use #10 or larger leads from the power supply, put terminals on both ends and don’t use it the banana plugs or alligator clips. Connect the leads to the two common rail taps but at opposite ends so no path is shorter or longer than another. Not at the center as shown during balancing.
good to know, thanks for the advice.
Thank you very much for your videos. I happen to have to do mine with 8 batteries and this video will be very helpful. Thanks again.
glad it was helpful!
Thank you! Appreciate you really explaining each and every step so thouroughly.
Top shelf instructions. Thank you for your clear, and concise directions..
your feedback is much appreciated.
What resistor to precharge is used? Top explained, to the point! Thank you!!
For 48V 30-60 ohm will work
thank you for kind feedback
I realize tha this video is 3 years old, but I just discovered the "magical" difference that Lithium Iron Polyomer has compared to Lith-Ion I have been using. I know that there is a chemistry that requires the pack have a constant positive pressure. Is that LiPo that I am thinking of? And if this video is 3 years old, what are you up to these days? My subscription is earned. #trustory
brilliant step by step video tutorial. well done
Very impressive & informative I liked the info in the drop down too. Links/time codes etc.
Got my mind working overtime now.⚡️
thank you for the feedback!
Thank you for your video. Great information that is easily understood. Well done! Looking forward to your other videos.
This is a wonderful explanation. It is most interesting the mistake you made in connecting the balancing cables. This has been my worry though I wire correctly but I imagine what would happen if such error occurs. Thanks greatly for sharing the video.
thank you for the feedback!
Very nice build. Very organized. I like it. Big thanks for the information
thanks for the feedback!
Красиво получилось. Одно замечание. Между банками классно бы поставить листы диэлектрика. Сами банки у вас подключены между собой шинами. В случае если перетрется, оплавиться, расплавиться, да что угодно случиться с изоляцией самой банки у вас будет К.З. И в отличие от ленты из никеля контакт хороший. Можно еще подумать о плавких предохранителях. Но, это уже на любителя. П.С. Спасибо за видео.
спасибо за совет и за отзыв.
I am about to tackle a similar project with 48(!) prismatic cells. This video is perfect timing 🙂
48 in series??
@@SolarEngineering Not quite. Ultimately a 16S3P, but they have to be top balanced.
@@PawlSpring ah I see, I have same bank 3p16S. th-cam.com/video/RB_O_5Ppv7g/w-d-xo.html
Excellent. Thank you. You are a scholar and a gentleman.
thanks :) appreciate ffedback
I would like to say thank you very much I thought your video was very good I found that you explained everything very well from start to finish
Cheers Anthony
Thanks Anthony.
Very thorough. Thank you!
Excellent - I have bookmarked this and deleted all the other 'popular' explanations.
Glad it was helpful!
I am just getting started and this was a great video for me.
Best video I’ve seen so far
Thank you.
Very professionally explained! Thanks you. One question: what resistor do you use to avoid the spark at the convertor and where do you connect it to discharge the spark?
for 12v use 12+Ohms
24v - 24+Ohms
48v - 48+Ohms
this type of resistance will allow only 1 amp to flow. You just need to do it once when connecting wires to inverter terminals.
How can I get this product
Hi from Australia Very Very much enjoyed you video , Great information and easy to listen to. And professionally presented ............. Extremely helpful A big thank you
( Liked and Subscribed )
Thank you for The good explaining and moore, it's easy to think that you maybe are a University teacher or something...
Greatings from SWEDEN for a very PRO Channel! 😀
thank you for the feedback!
Thank you very much!!! The best explanation that Ive ever seen!
appreciate your feedback.
VERY GOOD VIDEO - everything is carefully planned for easy explaining! A near perfect explainer video.
I suspect your channel is very underrated - as an electrical engineer myself, I have a feeling that it won't take long for your channel to grow exponentially!
Subbed & Liked!
haha, I wish your words become a reality :)
Thanks for the feedback.
Thank!, you very well explained,it claered many questions I had.
What a Lesson professor! Cheers from Brazil!
)) thanks
Спасибо за тест. Не согласен только с последним доводом - провода от BMS до ячейки обрезать по длине не рекомендуется. При использовании ячеек необходимо снять все наклейки с предохранительных клапанов что между клемами.
Час назад сделал заказ на 16 штук (по вашей ссылке). Собственно от туда я сюда и пришел)) Еще раз спасибо за видео и всего наилучшего!
Shorting the wires has no negative effect. Your just measuring voltages, hence very small currents..
Brother excellent detailed video you have answered all the questions in my head on how to start off lifepo4.. Many Many Thanks for your videos! Happy New Year. Gokhan from London
appreciate your feedback
Very good explanation of balancing! Thanks.
thank you
Your remark about shortening the BMS wires is true if they are only used for measurement but not neccesarily true if they are used for cell balancing. When you measured with your meter you are only loading the battery with a 10M Ohm load so drawing 50 microamps. If the BMS is active balancing it can only read the voltage at its end of the wires and you will get some voltage drop across these wires which will be different if they are different lengths.
Fantastic build, thank you for posting!
merhaba . 60 & 72 v bir sistem kurasaydınız izlenme oranlarınız çok daha fazla olurdu.Bu videoda çok başarılı olmuş. çok fazla emek harcadınız.teşekkürler.
enjoying the video, one comment, checking the individual cells when they are still connected in parallel will give the same voltage for every cell. It doesn't matter which one you check, you are really just checking all, every time ....
yeah, missed this part. thanks for letting me know.
Fantastic Video! Very informative and educating! Only small suggestion I have: It helps the batteries to last longer if you compress, but I think you know that already.
compress? He might know but we might not... Compress what? The cells to each other? My butt cheeks?? ?
@@ludlow7369 Your testicles
30:00: "I don't see smoke ...". Sounds so familiar to me :)
And that is how it is done to save have the price of a solar generator. Very good.
yep, planning to release another video soon about solar generators.
The parts with shipping for my 24V 200ah Battery is about 800.- plus bms and small parts all in all less then 1000.- € against some commercial resellers who wants to get 4500.- for the same setup.
I also bought 2x 290 Wp Solar cell for 90.- plus a mppt 200/20 with price tracker from amazon for 130.-
So all in all i can now build up a great solar system with 580Wp and 200ah Batterie for less then 1400.- against commercial seller who made me offer with minimum prize 6500 .- up to 8000.- and many weeks waiting time.
Sometimes its really worth watching videos and diy it yourself.
And if anything fails while i am on the road i can fix it myself and have a deeper understanding whats going on.
@@usurpinesusanti3149 absolutely, I agree. I build myself a powerwall that I would have not been able to afford for less than 5k.
Very nice video. I like your soothing voice and good explanations.
Subscribed !
thanks
Thank and very nice demonstration about BMS!! Thanks
Nice build! Very informative!
thanks
Thank You for this very good video, its exactly what i am planning to do, already have ordered cells from China an BMS which looks almost exactly the one in your video. Very good explanation and very helpful indeed. I feel now much better prepared to do it right and i am not a professional at all. You did a very good job with this video.
appreciate your feedback.
Very good and clearly explained. Thanks you got yourself a new subscriber.
Thank you doing this video. Even your mistakes are good for this video
yeah, I thought it's a good thing to leave in video, to see how easy is to make mistake
I'm glad you included that overlook. It shines a light on how important it is to double check things. Even if you fried your bms, the lesson would be long learned. And I really appreciated the texts on the screen as you moved along. I made notes! Helped me understand C ratings a lot better. Thanks!
Excellent demonstration.
thank you
OMG I LOVE that accent!!! 🍻 Great video mate ✌️✌️
appreciate your feedback!
Very professionally explained! Thanks you.
thanks for the feedback.
You didn’t check the IR, why? Thanks for the video my friend
Thank you. This video has just the right amount of detail that I was looking for re: how to create my own LiFePo4 battery bank. The excellent video/audio production quality is an added bonus. New subscriber here.
PS: But I'm unsubscribing if I get shocked in the process! Just joking...
)) thanks for the feedback
here is a quick tip, connect all batteries in parallel initialy for a couple of hours before connecting them in series, they will all equalise to the same voltage
I was gonna say... isn't he missing a step here, which is just leaving the whole pack set up in parallel, with the copper wires, for a while to let all the cells balance out on their own? I'm still learning this stuff myself but seems this is what other DIYers do.
Excelland job showing how it all works !!
ich bedanke mich, das war einer gute virstellungen !!! alles gute!!!
rechtschreibfehler ... vortellungen
Great video, got the info I was looking for. Thanks a lot!
Glad it was helpful!
Lovely - thank you so much for this very in-dept description
thanks!
Excellent battery build video.
Thanks 👍
Great video. Very helpful. Thank you. You have a new subscriber.
Awesome, thank you!
Nice explaning, whery good video!
I have learned so much from your presentation, thank you. Excellent presentation of data with the discharge rate chart...helped me understand the issue exactly, also pointing out the different battery configurations possible...you covered alot and helped me immensly.
I LOVED THE VIDEO AND I LIKE THE CELLS A LOT I WILL BUY THIS BATTERY AS I THINK THEY ARE THE BEST ALSO TRY AND BUY THE THINGS I NEED AND GIVE IT AGO FOR £500 OR JUST UNDER 24 VOLT 2OO AH IS WHAT I AM LOOKING FOR PLUS I BE SAVING FROM BUYING IT ALL SETUP. I AM SURE I WILL COME TO THIS FOR MORE INFO IN THE FUTURE TO SHOW ME HOW TO SET IT UP CORRECTLY LOVELY EXPLANATION ON HOW TO SET IT UP.
Отличный акцент))) пря клип вспомнил RUSSIAN CYBERPUNK FARM
))) "что снимаем уже?"
Awesome video. I think you covered all bases. Really informative. A definite sub from me.
Awesome, thank you!
Excellent work and explaining
Glad you liked it
Very informative. I would say however care needs to be taken with these Aluminium case batteries. With some of them the case is connected to the -VE terminal of the cell. When the cells are stacked together if somehow the plastic wrap on the cells rubbs through it can cause a short and possibly a fire.
What is the solution?
@@fraserlynn9488 Some of the cells I have seen have plastic caps that sit on top and bottom and this makes a gap (about 5mm) between the cells. This could be re-created using some type of insulator between cells.
Good video. I learned a lot. Thank you very much.
Glad it was helpful!
Looks great. Thanks for the video.
thanks!
Отличное видео. Спасибо.
спасибо за отзыв.
Grear video! Thank you for your work!
How much power can this batery pack deliver continously? How many Amps?
that cutoff would I guess be because of the cutoff settings i think your BMS came preconfigured for LiPo instead of LiFe and there is a huge cell voltage difference. LiFe is 2.5v - 3.7 where LiPo is 3v - 4.2v
Great info. I really like the easy way you explained it. You have a new subscriber. You have teaching kills. Thanks again!
I appreciate your feedback.
I need full power, Chekov!
haha, right!
Priviet. Very good explanation.
Thank you
You are welcome!
Thank you so much
Your explanation helped greatly
And i like hoe you say positive and negative 🥰
Great job bro you deserve subscribe
thanks!
Other people's just play but you are real guy
Amazing, I was thinking of making the same battery setup and this helped a lot, thank you. i do have a few questions, how do you find and use the correct kind of BMS for different configurations of batteries with different voltages. And how do you charge and find the correct kind of charger. A video on this topic would be greatly appreciated, thank you again.
BMS:
usually there few types of BMS on market:
- one that supporting nominal voltage 3.2V (LiFePo4)
- one that supporting nominal voltage 3.7V (Li-Ion)
- and another that supporting a wide range of voltages (configurable BMS like I use in this video)
I prefer configurable BMS, because it gives me more flexibility.
Charger:
In this video, I'm using a power lab supply that could provide voltage from 0V to 60V. So it's not a real charger. To select a charger you'll need to decide what kind of battery you are going to use and what is going to be MAX pack voltage. For example, in this video, I'm using 16 LiFePo4 cells, max voltage for cell is 3.65V, so 3.65*16=58.4V. So charger voltage should be about 60V, and BMS will control MAX voltage.
I'm preparing a video about my entire solar setup, planning to release it in Feb, will try to cover more in this video.
@@SolarEngineering Thank you very much, I look forward to your video this month, you have a unique and great way of teaching, I appreciate your time. Thanks again.
What is most economical battery in your opinion buying like you did or just buying 200 ah battery? How much $ was everything also?
No fuse? What will BMS do if shorted?
Nice heat-insulating pad for BMS against battery!
Очень хороший видео брат спасибо💪
спасибо