Thank you . Great

Well thanks a lot, this video is gold. Full of useful information.

Thank you, brother. Why do we disconnect the active equalizer when we are not using the cells?

Excellent video, thanks! Is there a way to tell, which type a balancing a device is using without seeing the BMS?

I was told that the AL8805 is obsolete. Can I use an AL8835 instead? ty

thank you, very informative. Quality information

Good job. Nice Explanetion.

WARNING: You are assuming cells are Lithium iron as found on most e-bikes - these values would be dangerously high for Lifepo4 which us becoming more popular and should be 3.65v

Sir , how to make 2S2P battery bank ?

Larger cells on a lower capacity rated active balancer would make no difference... it would just take longer to balance them if they get out of whack... I used one on a 30Ah pack 3s16p design, took ages to balance but that is because the BMS and its passive balancer somehow managed to make banks 1 and 2 go to 0 volts and bank 3 was at 4.25(ish) volts probably closer to 4.3-4.35 volts because my meter was reading low because of a dead battery in the meter. So the amount of energy it had to transfer was closer to what a 100Ah or 500Ah would require... because I basically had to transfer the entire capacity of one bank into the other two. It took so long that I had to help it along by charging the 2 low banks and discharging the high bank via external chargers and loads. If your bank is carefully matched (as mine was, within 50mAh or less out of 30 000 mAh total), then your balancer wont do much work as the cell banks are going to be close just naturally, no matter how large the bank, what matters is the difference in capacity between each bank. A gigantic 1000 Ah pack could be balanced by an active balancer made for a 20Ah or less pack if either the charge current is low enough and you are OK with the slow balance, or if the pack is very well balanced so each bank of cells is very close to the others in capacity right off the bat. If you took my pack, and you multiplied it by 10, so its 3s160p, it would have ~300Ah and the balancer I use would still be sufficient because I would have matched all the cells so that each parallel bank is very close to the others (like <100mAh or even around 50mAh like mine is, more cells means I can probably get a better match). It's about the relative difference in capacity between each bank (or cell) and the rate at which you are willing to balance at. I personally prefer a slower charge and balance because that is easier on the cells and my cells are so worn out from being salvaged from the e-waste pile that they struggle to charge or discharge even at 0.5 A (500mA) per cell... well some are OK and probably could do more than I bothered to measure, but some are so worn and have such high internal resistance that I just made the whole pack large enough that the cells wont be pushed much past 0.3A (300mA) per cell... plus more battery life and easier on the already worn cells.

Thank you this was very helpful

This is exactly the video I need, such informative. Thank you so much! Side note: your 7 parallel 18650s are over 70Ah, that's an average of 10Ah each, which is something unheard of. Don't you think its exaggerated? They're most likely less than 3Ah each. So inductive balancer should have worked?

thank you for the info man. i want to use this module with 5 pieces lm2596T. i want to use only this 1 module and current control for all of them.can i do it for only 1 this module for 5 of lm2596? i want to use this module but i want to connect other 5 x lm2596. and i just think i need to connect all of them 4.pin on this module on lm2596. i just need to know what can i connect lm358 1.pin to increase current for 5 x lm2596's 4.pins..what do you think about this idea? and the final result i expect that i i just this module control but i will 3x8=18 amp control. thanks for the video again...

Very good and transparent content. Awesome👍

Thank you this is exactly what I'm looking for for my next project!!

Now we just need the Qualcom QC 3.0 module to make a proper phone charger for a proper phone 😅

like the data, hate the robot voice

This passive balancer does not make sense because it drains only 68ma. At least 500ma would be ok.

This little PCB will be damaged by connecting the battery reversed ( so I am informed ? ) .... so ALWAYS double check before you use it .....tip # 34 ................ DAVE™ 🛑

Hi I made your spot welder I know this video is 2 yrs old . works fantastic . I did a few mods . ie what I had on hand. total cap 100mF working @ 13 volts as i only had 16 volt Big Ass caps . Thanks great work well explained

thank you for your detail explanation

Can you give an example of using DC electricity?

Thank you very much for your informative video. Can you explain to me how we can install the boot loader through a separate ISP programmer instead of doing it by using another Arduino board?

2.4 volts.. hahaa yea if you want your battery to die faster I guess. Rest of the video is great, but li-ion shouldn't go below 3v.. 3.2 ideally

hello. how can the signal obtained after the rc filter be played on a 3-4 ohm speaker without affecting the signal and the output frequency? I'm trying to play a sinusoidal frequency of 8 Hz, the result of a pwm signal from arduino and an rc filter. I got the desired frequency and shape, but I can't play it on a speaker. do you have an idea how to do it?

This that good stuff.

why not use tp4056?

Your inductive balancer is broken. Get a new one and re-test.

loved the video. As you stated, Active balancers are recommended for higher Ah capacities, and you gave some high examples. Would you recommend using active balancer if I were planning on making my own portable phone charger at roughly 20 Ah?

Very interesting

No schematics? 🤥

The settling time of the RC filter to 8-bit precision is approx. 6xRC= 6x 0.13sec ~ 1sec. This is a major drawback of the PWM to analog.conversion

Which software have you used for the plot of the graph (as shown in 5:30) ?

If possible can you help me to make an LED PCB with driver using ZXLD1362ET5TA IC.

I've 24V 150W SMPS. Can I use this LED driver to power up 8 LEDs in series at 1A?

Very well explained ..

Please tell us can we supply 0 to 5V by this with Arduino programming

Thanks. This video helps a lot . But i have a question, How can i get the curves???

what did you use to plot the battery voltages?

Hi sir, can i ask? I want use digital potensiometer without using button. If it possible? Using only command in arduino? And how to program without button

This video was really clear. Thank you!

Amazing. Thank you very much 👏

Thanks for the video. So what I'm gathering is that the balancer is only necessary for batteries in series. Does it follow then that battery cells wired in parallel will self-balance? I'm only building a small 2S battery with 4 18650 cells total, so I don't know how important balancing would be, but I'm trying to learn as much as possible before moving forward. Thanks!

thanks for providing such an interesting experiments I am wondering, about using at the same time both passive and active balancers, it seems like a good idea. You showed it on you representation scheme but I didn't hear any words. is that a good and safe approach. It looks like passive one works great for charging, active for discharging. Mixing them altogether helps to achieve better overall result. Waiting for your reply. Thanks!

This is really helpful!

thanks

When current is lower than limit opamp which regulates current is at 0V. How do lm2596 increase current?

Hello, I have a problem with the charging current of the lithium storage battery, hope you can help, can you have a telegram that I can ask privately, I hope you can help me

Hello

thx