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Is there any chance you prepare a video explaining current mirror?

Thank you for watching!! I'll keep that in mind!!

Hello, Active balancers are equipped with capacitors, which suffers leakage current by a small amount. Though it might be small, it can discharge the cells at a faster rate. So, if you are not going to use the cells for a long time, it is better to disconnect the active balancer. Thank you for watching.

Hi, thank you for watching! If you can measure the voltage of each cell, then you might be able to tell which type of BMS is used. But it would not help if the cells are perfectly balanced. I would recommend asking the manufacturer or taking a peek into the battery pack :-)

Hello, thank you for watching! Are you referring to AL8853? If yes, you can use AL8853 for driving the LED, but you need an extra circuitry (including the mosfet) according to the datasheet of AL8853. Hope this helped!

Thank you for watching!!

Thank you for watching!!

Hello, In order to make a 2S2P battery bank, just treat 2 batteries as one. Connect two batteries with the same polarity, and then connect these two packs in series. Thank you for watching!!

Thank you for watching!!

Thanks!!

Thank you for watching!! Hope you succeed with your project!!

Great idea 😀 Thank you for watching!!

Sorry for the disappointment. Thank you for watching!!

Balancing is achieved during the final stage of charging when the charge current is very low. For this reason, the drain current need not be large. Also, increasing the drain current can limit the current, which can be used for charging other cells. Waisting the current can be another reason for not increasing the drain current. Thank you for watching!!

Low currents are all that are required for well matched packs. I made a 3s16p pack from salvaged (garbage) cells... I managed to get each bank to within 50mAh of each other which is impressively tight... until you realize the pack was ~30 000 mAh large... that is a *TIGHT* match. But my BMS which uses a passive balancer somehow managed to make 2 banks go to 0 volts (Not safe) with one bank at 4.25 volts (closer to 4.3 volts because my meter is out a bit). IDK how that happened, my cells were each tested to hold a stable full voltage for more than 2 weeks when left disconnected so that shouldn't happen. I used an active balancer to fix it but it was going to take a while, I helped it along by draining the high bank into some incandescent lights and I put external chargers on the low banks while the active balancer did its thing. Now my pack works again. But, if my pack had not been let go out of balance, the passive balancing would have been overkill, it was rated to 100mA but even 68mA would have been overkill given just how darn close my pack was. Even new cells are not always that closely matched... lots of cells in parallel means the average of them all is pretty close across the pack.

It's great to hear it worked!! Thank you for watching!!

Thank you for watching!!

Hi, the usage of DC is huge, including all the digital circuits! I think you can get a better idea by searching "where is DC used" in the internet. Thank you for watching!

Depends on the cells, higher capacity can be discharged to 2.5V, some even as low as 2V I've seen depending on chemistry

@@daijoubu4529 this is li-ion. There is only one chemistry being discussed. I even said the chemistry in my post. So what you said makes no sense.

@@gg-gn3re there are at least 3 kinds of lithium chemistry: Lithium Cobalt Oxide, Lithium Manganese Oxide, Lithium Iron Phosphate

@@daijoubu4529 I said lithium-ion, learn to read. stop digging your hole

Lithium-ion batteries are a broad category of rechargeable batteries that use lithium ions as the primary source of energy. Within this category, there are many different types of lithium-based batteries that use different cathode materials, such as lithium cobalt oxide (LiCoO2), lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt aluminum oxide (NCA), and lithium iron phosphate (LiFePO4), among others. Each of these chemistries has its own unique properties and trade-offs in terms of energy density, cycle life, cost, safety, and other factors. So, when people talk about "lithium-ion batteries," they could be referring to any one of these different types of lithium-based batteries, depending on the context.

Hello, thank you for sharing your concern. Have you measured the waveform after connecting to the speaker? I wonder whether the waveform is consistent before and after connecting to the speaker. Also, it seems you want to play 8Hz sinusoidal waveform through the speaker, but I'm not sure if you can hear the soundwave of such low frequency. How about increasing the frequency to some hundreds of frequency range? Why would you need an RC filter for your application?

Thank you for watching!!

Hi, this video was intended to show a different way to charge a Lithium polymer battery. And yes, you can definitely use TP4056 for charging these batteries as well. Please refer to the link below for charging Lithium polymer batteries with TP4056. Thank you for watching!!

Hi, I think you are referring to the capacitive balancer since no inductive balancer is used in this video. Can you be more specific on which point you think the balancer is broken? Thank you for watching!!

@@gemsungelectronics460 5:30

If you're making a portable phone charger you can put your batteries in parallel (4.2V max) and let them balance themselves without a balancer. I believe this is how most USB power banks work.

Thank you for watching!!

Hi, I've used matplotlib from Python to plot the results. Thank you for watching!!

Thank you for watching!!

Yes, you can control the wiper value of this potentiometer with Arduino from 0V to 5V. Thank you for watching!!

Can we expect drawing voltage from 0 to 5V with it directly with nano

@sumankar4873 Do you mean whether we can power the potentiometer with Arduino nano? Then yes, you can power the potentiometer with 5V coming from the Arduino nano.

The configuration of the test is introduced in the slides, and the tool used for drawing the plots is python matplotlib. Thank you for watching!!

Hi, I usually use the matplotlib from Python and sometimes use the plot function from MATLAB. Thank you for watching!!

Hi, the button in the video was just used for demonstration purposes. So yes, you can definitely get rid of the button and program it in the Arduino. Programming the Arduino is dependent on what you are going to build. For example, you can read data from the sensor for adjusting the potentiometer. The sensor can be replaced with ADC or any kind of device that can provide feedback from the adjustment. Thank you!!

Thank you for watching!!

Thank you for watching!!

You are right. The balancer is only necessary for series configuration. I would recommend using a passive balancer when you are building 2s with a total of 4 batteries because the capacity between all the cells is not exactly identical. There are many 2s balancers you can find from online markets. Thank you for watching!!

@@gemsungelectronics460 Thanks!

Hi! Thank you for watching! Passive balancing works well for charging, and active balancing works well in both charging and discharging. I'm not sure about the benefit of using both balancers at the same time. Active balancer balances the cells whenever the potential is above threshold, at a cost of increased standby power consumption. Passive balancer, on the other hand, dissipates power while balancing. Active balancers are good when your cell capacity is large and can be charged frequently. If your cell capacity is small and not able to charge frequently, then I recommend using the passive balancer. Hope it helps!

@@gemsungelectronics460 yep, it helps. Thanks for such a comprehensive explanation

Thank you for watching!!

Thank you for watching!!

Hi, thank you for asking. Currently, I don't have a channel for private communication. How would you want to communicate?

Thank you for watching!!

Thank you for your comment! More videos are to come!