Excellent video. The way you explain voltage and mah relationship in regards to parallel and series is absolutely excellent.

This is an excellent tutorial of often misunderstood concepts regarding batteries , their capacity and products of their series and parallel connections.

This was very helpful. Even though there is allot of info to process, you explained it in a way that truly helped.

Thank you for this explanation, I never took into account depletion in the past and wondered why my appliance wasn’t last as long. Now I know 👍 Stay well Ash from Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿

Very well explained!! I would like to add/ask something, at least as far as Lithium Polymer (Lipo) high performance batteries go. These type are widely used in racing/freestyle drones that I fly. We call them "packs" because as I'm sure you know, they do not have hard shell, just individual 3.7v (nominal) cells, in series wrapped together in plastic and then then shrink wrapped with logo and manufacturer info. I'm not sure if it's due to nature of high performance or just the way our hobby has always done it, but if any individual cell drops below 3.0v it's taken out of service by most pilots. Now some, myself included, after running a few tests and it still seems to be holding a charge and the cells are relatively balanced within 0.5v of each other, I'll wrap a piece of colored tape, (blue for me) around it and still use for accessory equipment, but not as a flight battery. Have you heard of this practice in other fields that use Lipo batteries, or is our hobby just overly careful?

Wow that was very well explained! Almost got confusing at some point so I just rewatched the last 10 seconds and got it. Thanks for the lesson!

This helped me a lot, Fantastic job, keep it up

Thanking a lot for sharing your knowledge. :)

It adds my knowledge. Thank you.

Fantastic videos! Keep up the good work. This is a great series. I really like your approach of mixing the circuit emulator with the physical world. This episode on batteries was really good. I especially enjoyed the fact that you spoke about all the different ways to look at the voltage (ie nominal, stated)

Complimenti,hai trattato in modo chiaro l’argomento

It is a very simple explanation. I thank you so much

Thank you for such good explanation!

A good explanation, just add a little thing, once the voltage is more than 3 volts and no regulator of voltage lamps will use more than 60 mAh and the calculation will change, there are a few other ingredients but the explanation is good for beginners

This video was super helpful. Thank you so much.

If only my teachers were this good at explaining this 20 years ago. Thanks for sharing your outstanding ability to make these things seem simple and clear!

Great video! I'm trying to power a 5V sensor with a 3.7v booster/charger pcb. What's the minimum mAh battery you think I should use? I have a 120maH lipo on it now and the board seems to dwindle and looses power 😞. Thanks for your time!

big respect from montenegro

Very interesting. Thank you.

Very nicely explained 😌 👌

Very informative video dear Sir

Very good information. I expected it

You’ve helped me a lot, thanks!

I knew I'd have to research batteries soon. Can't be using USB power for everything! Thanks for this!

Hello, You have a great channel. Thank you. I am a complete newbie and would like you guidance please. I have puchased a hot tub and it draws 2800 watts. What would / could be the best route for me to follow to utilize batteries and inverters to be able to run the the hot tub. I am thinking about having two battery banks, One being charged via electric chargers run off the inverter whilst concurrently running the hot tub. when those batteries are charged, i would switch over the complete setup and charge and run the inverter from the other now charged bank. Please give me the pro's and con's and what sort of setup i should look at. Thankyou, Craig.

I am by no means a person of hyperintelligence, but this guy makes it so easy to understand what I used to believe was in the same realm of Learning or Cantonese(ya kno, fuggin impossible😅)

thank you Sir!

Would a 180 ohlm resistor in series to the battery also work? When lighting up the LED's?

Very useful indeed

Great video!!! Is there any tool that i can use in order to check the battery capacity (in mAh)?

What about using a zenor diode for constant voltage output instead of using a resistor? Wouldn't it be more practical?

how can we find the capacity (ampere hours) of a battery if we make one or if we know only its voltage? how can we measure the ampre hour of any battery?

Hey, with a multimeter, can I measure the mAh of 1 or 2 AAA batteries? 3rd grade experiment for my daughter. 2 AAA in Series, parallel and S&P. Trying to show the mAh increase or how it stays the same with the voltage increase. Am also using a bulb for visual confirmation.

Excellent!

Nice explain

I was so confused but now I get it

Thank you

Hello I just subscribed and hit the Bell. I have one question please. I just purchased a battery for my Sony camera that is. 8800 mah Is there a way I can test it to see if that's actually what it is when it was purchased ? Thanks. Keith

Good stuff

SIMPLE & Clearly Explained. good job

Amazing

Wait a second, lemmi start the video over. XD

Sir, can we combine two batteries of different voltage and capacity

Thank you for this great video, i have question, if i connect 3 Li-On batteries in series but the capacity of each one is different than the other one, how can i calculate the capacity in this case?

Hi i made 3s8p battery pack with bms protection and 12vled20 with a12v fan so how long it will last and i charge it with 12v 1amp charger

Do you make a videos about complex math calculation?

Question I have a hair clipper that’s a 3.6 volt motor and was with a 3.7 2200 mah battery 🔋 but I put a 3400 mah battery in it and it increased the speed is there a way I can get it to go more faster with more torque

i want to knw which one is more prefareable parrallel or series connection?

What should be the battery capacity for a solar street light of 12 v 15 w to light for one night that is 12 hours?

Thanks very informative and clearly explained now of to create battery packs haha

So the higher mAh just means it will last longer when item is in use? IE if it normally last 1 hour a higher mAh wil make it last more than 1 hour? Does it affect the other items in the device like a motor or a fuse to blow?

6x18650 batteries and im using 12v bms..how long it takes to fully charge.im using 12 v 1a charger.hope you can help me about this.

This is a Great tutorial thanks for sharing, can I ask a question please. I have five 1.2v 900mAh batteries in series for a solar lamp, how do I calculate the charge rate please? Thanks John 😊 not getting enough sun to use the solar panel 😪

How long it will charge the li batteries? That calculation please show.

I didn't get you well . Kindly Clear my doubt 1) the mah read on the battery don't exactly tell us how long it will take for the battery to get discharged because the voltage will not always remain constant and it depends on what battery we use .this is true but you added a point saying if we know the Capacity of the battery and divide it by the current then only we'll get the real time it will take. But the mah noted on the battery is of course the Capacity right? If yes it'll also not give us the real time I'll take. 2) If you say in parallel voltage is always constant then there would be no discharge right?

Good video

What's a good mR resistance reading for a brand new Samsung Q30 18640 15A button top unprotected battery? What's mR mean actually? I'm using a Zanflare C4 charger tester. Thanks much

Good & explained very well... if u multiply 20x 3000 mah = 60,000 mah= 60ah...

Hi, I have a simple question for which I did not get an answer. I.e If I’m having a 3.7 v lipo battery then what should be the amount of voltage which I should provide to charge it? How do you calculate it? What if I'm having a 12 v battery. Is there any formula for it and if yes then help me out with this.

Why does the voltage supplied by the 1.2V battery reduces over time instead of constantly supply 1.2v at any instance of time?

So should I use the fully charged voltage or nominal voltage when calculating how big to make a pack?

In series current wont changw right? But what if u series different current?like for example., 2v 5amp 3v 3amp How about in parralel?

Btw, im a 2nd year student studying electrical engineering, bachelor of science (BSc) and i couldnt make sence of mAh. So i had to watch this vid :)

How about amp draw per battery? Series vs parallel

Thanks 👍

I read that the perfect temperature for charge/discharge of li-ion batteries is 27 degree celsius, my question is: Is it possible to build a battery cooling system with Paltier elements to keep batteries always at 27 degree celsius, to get max power output ?

thanks for sharing like this video i know new idea

Isn't 3 times 1.2V NiMH in series only enough for one 3V led? Or r the 3leds in parallel? But then u should ve metioned. Otherwise some get confuse. Thanks by the way 4 all your hard work.

Perfect

What is the resultant potential when 1.5v and 5v batteries are connected in parallel?????????????????

Thank you for this video.. I'm new to 18650 rechargeable batteries so excuse the maybe silly question i'm about to ask. What does or is the difference between 3200mah or a 3600mah or 3700mah? Does it last longer the more mah? and does it take longer to charge the higher the mah? and is there anything else? I thank you in advance for clarification? Peace!

I freaking love you mannn oooo

Very Helpful Thank you

Hello sir I have Question If In laptop using 2800mAh battery lithium ion cell and suppose we replace One cell with 2800mAh battery then what will the the condition on laptop? It's get trouble? Can you please make video on Lenovo laptop Z50-70 repair battery ?

what if we put two batteries of different capacities in parallel?? what will be over all current??

I have a shaving trimmer which uses two cells of ni-cd 10000mah and 1.2 v What if i use 20000mah or higher ? It will last long?

Thanks dude👍🙂 thats was helpful idea! Now i understand what is comparison of SERIES and PARALLEL to combine the two batteries "18650 3.7v 👍🔋😅 Maraming SALAMAT!🇵🇭 'Thank you very much! 👍😁

How to calculate the charging voltage and current for 3 or multiple li ion batteries connected in series & How to calculate the charging voltage and current for 3 or multiple li ion batteries connected in parallel

Great information, Many thanks Sir....

Thanks for the great information, But tell me how does all the battery capacity is forced to be a single battery capacity in series battery connection? To me each battery is a box filled with x amount of electrons eagerly waiting to travel the world from -ve terminal to +ve terminal. Can you please elaborate?

So if I have two 20V batteries and one is 2.0AH and the other is 4.0AH will the 4.0AH just last longer or will it also be more powerful?

Can using the 18650 with a higher MAh hurt my electric RC car?

My laptop battery new cell is 4.2V. To test it's mAh, should I start measuring time only when it has touched 3.7V, Or, should I measure time from 4.2V?

Hi great video / i bought a hd Camcorder 24MP 1080P Full HD 30FPS Vlogging Camera IR Night Vision Camcorders Camera Recorder 16X Digital Zoom Camera with The Pause Function and Remote (NEW07). It came with NP-40 3.7v 1500mah batteries. Can I use 3.7v 1700mah? Will it damage the camera and is 1700 better? Or should i just stick with the 1500??? Thanks Rush

How to calculate battery capacity at nominal voltage say 3.7V for li ion battery

Wow actually learned something. Thanks guy with an accent!

so are we saying the batteries last longer when in parallel than in series for drawing the same amount of power????

but what if you have batterys in series with different capacities how do you calculate the amp hours of the overall battery pack

May I ask what will happen if we parallel the 3.7V battery with the 1.2V battery with the LED light? Can we benefit from the both world?(more mAh and high voltage), I suppose it doesn't work like that but I don't know why.

Thanx for the video brother...correct me if Im wrong......according to the data sheet the Maximum Continuous Discharging Current is 4400Ma or 2C...for each cell....therefore I have 10 cells in parallel and the total Maximum Continuous Discharging Current then it would be 44000Ma or 44A for my lithium ion battery.. my battery is 13S10P 52V 25Ah...

This is a great channel. :) I have a question, SE, it goes like this: I've been trying to measure the amps in a variety of batteries using a super-cheapo DT-830B multimeter. It's really not a very satisfying or reassuring experience. The multimeter readings simply don't tally with the indications on the batteries. And i've just watched a video suggesting measuring amps of batteries isn't recommended. Which leaves open the original question: How can i figure how what the remaining capacity (in amps) remains in my batteries. Do i have to use the volts reading as a rough proxy ? (eg relatively low volts == low amps) Is there a correlation coefficient that will allow me to calculate an 'estimated amps' from volts ? Thanks to anyone (and everyone) that volunteers an answer :-)

sorry if this is a dumb question and anyone feel free to answer. i got a new battery pack for my remote control digger. the mah on my original battery was 400mah. the new replacement battery pack i bought is 2400mah. the question is .. will my charger still charge the batteries or do i need to get a new charger that matches the mah.... or is it unrelated and doesn't matter? please help lol

How to check Current Storing Capacity in terms of mAh of any battery....Please explain...

will the voltage required by 3 led of 3 V each is 9 v or 3 v??

shouldn't the capacity decrease in a series connection? for example, 3 times lesser if all 3 are of the same capacities?

Great video, what applications would you prefer more capacity (parallel batteries) over more voltage (series batteries). Would it just be when high voltage is not important?

Nice explanations

I am doing an experiment on batteries, to do this I need to know the power usage of my rc car (way to drain batteries) if I was to email the company who make the car what shall I ask?

Power consumption in unit?

what does 2600mah 40a mean in 18650 batts?