Oh my! This is what I need right now! I'm designing a project, and this video give me a good idea to solve a problem I couldn't make through. Thank you very much!
- The first example is nice to see how it works, but very bad as a battery metter, because a battery at 10v is dead and with 10v that metter have 4 lights on. Maybe changing the values of the resistances or/and adding another one at the input will work as expected. - The 2nd has a good starting, but needs about 15v to lights up all the leds, and a battery has a max voltage of about 13v. Only has 14.4v as much while is charging. Same as above, but this time maybe the problem are the zener values. For me, the best you can do is the third, because uses 10v as minimal voltage, and the max voltage can be regulated to lights up the green lights when is full charged (about 13v), and the white led while is charging for example (above 13v).
Actually, the battery would NOT be dead at 10V. A dead battery has NO VOLTAGE hence the term "dead". Also, the battery puts out 14.4V not when charging, but when it is being used to start the car. Thus, it does NOT have a maximum voltage of 13V.
@@protoborg At 10V is not dead but is worthless, you can not start the car with that voltage. Also, unless the battery is deep discharge resistant with 10V is dying slowly. Probably you will charge it again but the amount of energy that can store will be less and it get worse with every deep discharge. Why did you say that the battery puts 14.4V at start? As far I know it will have lower voltage no higher.
@@RDCST No it is NOT worthless. The car WILL start as it is not the charge that matters. It is the current flow that matters. Batteries have two different voltage readings. A car battery outputs AT 12V, but it doesn't STORE 12V the entire time. Thus a battery that HAS 10V is NOT useless. Further, modern batteries don't have any such thing as "deep discharge" as they are typically deep cycle batteries for safety and longevity. Deep discharge is not that bad. It doesn't actually start to suffer on the first deep discharge. A car battery is rated at NOMINALLY 12V, but they generally run a bit above that.
To all those people who apparently do not understand voltage, when a battery is dead, it has 0V as voltage is the measure of the electromotive force. In other words, if there is no charge, there is no voltage. So, yes, a battery CAN reach 0V.
Hi, The zener diode method results in surprisingly hi resolution for its simplicity. In theory I would consider 12.6V & up green for a rested lead acid car battery . While charging, green up to 13.8v, and then changing back to yellow up to 14.v, then amber at 14.6v, then red at 15v, for example. But that is my theory. might not be practical. You have done a great job I think.
I like your logic! Green for best "Nominal Voltages", changing the color shift towards Red, as you move out to the Extreme Ends, of Discharge or Overcharge!
The best way to detect the Battery Voltage is with the LM3914. If you use this chip correctly, you can adjust the Range of the displayed Voltage. So you can set the Range from 0 to 12V but also from 6 to 12V, or 10 to 12V and so on. But if you want a measuring Device with the smallest own Power-consumption you better use a Moving coil measuring device for the right Voltage with the proper precision Resistor for measuring range adjustment.
Lm3914 is the best because it can be calibrated for whatever voltage you desire. Secondly the bar/dot feature expands the confines of your design in the sense that you could light up the LEDs at higher voltages exclusively from the others
It should be called a Voltage indicator - not battery indicator. A 12V lead akku is empty when it reaches below 11.8V. To achieve this the first diode must be a Zener-Diode of 11V (or nearby). Multiple diodes also could be used, since each is 'loosing' around 0.7V.
@@protoborg - You are referring to "Zero Volts" as "Dead", but if you read Lead Acid Battery Spec Sheets, you'll see the "Discharge Cut-off Voltage, is "10.5 Volts!" Also, many Vehicle Circuits, require a Specific Minimum Voltage, ABOVE that "Cycle Test Cut-off Voltage, of 10.5V! So, for systems operational requirements, saying 11.8V is equal to "Dead" may well be a reality, "In the System ", even though the batter still has Potential Energy in it! Just not enough to operate various systems or circuit elements!
The 2nd has a good starting, but needs about 15v to lights up all the leds, and a battery has a max voltage of about 13v. How can i improve the design to lights up all the leds at 12.6V? What would be the value of the components to use?
Does this in anyway work with a Lipo 2S? i wanna Check when both cells are at 3.4v so i have to charge the lipo. I wanna build it because i wanna build a 2S Pack for my Bicycle Lamps.
The first baterry level indicator is not really a battery indicator, because batteries don't go to 0 volts. Maybe changing the values of the resistors could solve the problem but i wouldn't use it as a battery level indicator
What happens when you try to charge your 12v battery ? Most chargers charge at 14v... So, that means all the LEDs would be ON solid, yes ? Should you add a 13v and 14v zener to show when charging is occurring ??
Hi friend and congratulations for the project if I want to use the ;rst project for a 4s battery pack then composed of 4 3.7V batteries for a ;nal voltage of 14.4V can I still use the 1K resistors or which resistors should I use? Thank you! 🙏
Very good but by convention the LEDs would be green to red as the voltage increases, unless you wish to emphasize a voltage at some point along the range.
Hi, thank you for the circuit. I made one. Same with same value components. Problem is, during bar mode, first red LED is on and keeps still during voltage change. I am not sure it stays on during bar mode. At graph mode first 5 LED is OK slowly lighting till 11,25V but afterwards 0.5V change makes all rest of the LED light up. By mistake I cut 4,7K resistor out of the circuit and it start working correct smooth way between 10-13,6V after calibrating with POT... any idea what is going on and what that 4.7K stands for...
how can we add Digital DC voltage meter.....in this diagram...to show the progressive charge value in voltages....hope to listen from you....Thanks Bro
Sir I Made this diagram using IC LM3914, but having Problem, that Some time it Show full Indicator & some time It Show only to Indicator. I not able to locate where is Problem.
Да пожалуй первая схема не надежная, но второй и третий болье адекватный . На микрухе пожалуй соберу на отбойник. Резисторы надо попробовать так что бы не на полную светились, а то сожрут всю мощность. 😂
hola amigo las resistencia son 18k, 47k, o la de 4.7k esque no se porque no me da resultado todo feo me enciende los led o el integrado lm 3915n-1 es igual lm3914n-1
Oh my! This is what I need right now! I'm designing a project, and this video give me a good idea to solve a problem I couldn't make through. Thank you very much!
Schematics in: 0:26; 1:56; 3:56; 3:58
love u dear
ruclips.net/video/z8SVXHxCeW4/видео.html
Kk12345678
00000000000000000000000000000000000
Great little projects... but on the 2nd one, the dude forgot to account for the voltage drop across the diodes ;)
I like your images used to illustrate assembly - far better than watching a video of soldering only!
youtuber Indonesia, contoh ini video
penyajian visualnya sangat baik
pantas ditiru kalau ingin maju
this is just what i have been wanting to build thanks for the video ,now i do not need to reinvent the wheel .
- The first example is nice to see how it works, but very bad as a battery metter, because a battery at 10v is dead and with 10v that metter have 4 lights on. Maybe changing the values of the resistances or/and adding another one at the input will work as expected.
- The 2nd has a good starting, but needs about 15v to lights up all the leds, and a battery has a max voltage of about 13v. Only has 14.4v as much while is charging. Same as above, but this time maybe the problem are the zener values.
For me, the best you can do is the third, because uses 10v as minimal voltage, and the max voltage can be regulated to lights up the green lights when is full charged (about 13v), and the white led while is charging for example (above 13v).
Actually, the battery would NOT be dead at 10V. A dead battery has NO VOLTAGE hence the term "dead". Also, the battery puts out 14.4V not when charging, but when it is being used to start the car. Thus, it does NOT have a maximum voltage of 13V.
@@protoborg At 10V is not dead but is worthless, you can not start the car with that voltage.
Also, unless the battery is deep discharge resistant with 10V is dying slowly.
Probably you will charge it again but the amount of energy that can store will be less and it get worse with every deep discharge.
Why did you say that the battery puts 14.4V at start?
As far I know it will have lower voltage no higher.
@@RDCST No it is NOT worthless. The car WILL start as it is not the charge that matters. It is the current flow that matters. Batteries have two different voltage readings. A car battery outputs AT 12V, but it doesn't STORE 12V the entire time. Thus a battery that HAS 10V is NOT useless. Further, modern batteries don't have any such thing as "deep discharge" as they are typically deep cycle batteries for safety and longevity. Deep discharge is not that bad. It doesn't actually start to suffer on the first deep discharge.
A car battery is rated at NOMINALLY 12V, but they generally run a bit above that.
@@protoborg are you a fucking idiot?
@@user-yw8sr3uj1w You're right. YOU are an idiot.
As soon as I seen the title, I knew a LM3914 was going to be used. It is such a circuit in one DIP chip. Thumbs up!
Excellent component arrangement without wire.
Одно из лучших видео по diy, что я видел.
To all those people who apparently do not understand voltage, when a battery is dead, it has 0V as voltage is the measure of the electromotive force. In other words, if there is no charge, there is no voltage. So, yes, a battery CAN reach 0V.
But when a 12V battery becomes dead, it has about 10,5 volts. Get you some of that
@@joeybanana839 No it doesn't. If it did, it wouldn't be dead.
Nice reply
Hi, The zener diode method results in surprisingly hi resolution for its simplicity. In theory I would consider 12.6V & up green for a rested lead acid car battery . While charging, green up to 13.8v, and then changing back to yellow up to 14.v, then amber at 14.6v, then red at 15v, for example. But that is my theory. might not be practical. You have done a great job I think.
I like your logic! Green for best "Nominal Voltages", changing the color shift towards Red, as you move out to the Extreme Ends, of Discharge or Overcharge!
GOOD TICHING KARTE HO AP 👍👌👍👌👍
The best way to detect the Battery Voltage is with the LM3914. If you use this chip correctly, you can adjust the Range of the displayed Voltage. So you can set the Range from 0 to 12V but also from 6 to 12V, or 10 to 12V and so on.
But if you want a measuring Device with the smallest own Power-consumption you better use a Moving coil measuring device for the right Voltage with the proper precision Resistor for measuring range adjustment.
que buena música ,me puso alegre y ver con ganas el video
Lm3914 is the best because it can be calibrated for whatever voltage you desire.
Secondly the bar/dot feature expands the confines of your design in the sense that you could light up the LEDs at higher voltages exclusively from the others
It should be called a Voltage indicator - not battery indicator. A 12V lead akku is empty when it reaches below 11.8V. To achieve this the first diode must be a Zener-Diode of 11V (or nearby). Multiple diodes also could be used, since each is 'loosing' around 0.7V.
How exactly would you get a voltage reading off a dead battery? Think before you speak. A dead battery will give a reading of 0V.
@@protoborg - You are referring to "Zero Volts" as "Dead", but if you read Lead Acid Battery Spec Sheets, you'll see the "Discharge Cut-off Voltage, is "10.5 Volts!"
Also, many Vehicle Circuits, require a Specific Minimum Voltage, ABOVE that "Cycle Test Cut-off Voltage, of 10.5V!
So, for systems operational requirements, saying 11.8V is equal to "Dead" may well be a reality, "In the System ", even though the batter still has Potential Energy in it! Just not enough to operate various systems or circuit elements!
The 2nd has a good starting, but needs about 15v to lights up all the leds, and a battery has a max voltage of about 13v.
How can i improve the design to lights up all the leds at 12.6V?
What would be the value of the components to use?
This can really help with my projects if I need to add a battery pack.
Subscribed....nice video...greetings from indonesia
Very good. Congratulations.
Very nice. Professional. Thank You
I like that stop motion..
Does this in anyway work with a Lipo 2S? i wanna Check when both cells are at 3.4v so i have to charge the lipo. I wanna build it because i wanna build a 2S Pack for my Bicycle Lamps.
Good job my friend keep it up ❤❤❤❤❤
what an idea
i like it
keep it up! ❤
Muito bom esses circuitos.
For simplicity and effectiveness, the #2 is better.
Very good vedio & very clear & good music 😉
Soooooooo much beautiful project lovlyyyyy work
Very nice
Super work sir
Отличное видео .Россия.
The first baterry level indicator is not really a battery indicator, because batteries don't go to 0 volts. Maybe changing the values of the resistors could solve the problem but i wouldn't use it as a battery level indicator
YES THEY DO!!! That is what we call a dead battery, you fucking twit!
@@protoborg even dead ones contains small amounts of energy and cause very weak voltage
can this be done with lm3900n and adjustable up to 17 volts with 5 leds?
Very good. How to use for 12 / 24V batteries with 5 leds? Thank you
Nice 👍🙂
What happens when you try to charge your 12v battery ? Most chargers charge at 14v...
So, that means all the LEDs would be ON solid, yes ?
Should you add a 13v and 14v zener to show when charging is occurring ??
Nice video
Nice video, thanks :)
The background audio of this video is so 80s that I think I am watching an old film.😆
Great video. Thanks
Hello...can we indicate more than 12v like 40 V or 54v or up to 84 V please tell me using same design...what modification required..please tell me
Beleza..muinto.bom
very nice project!!
Beleza.muinto.bom
Bisa ga dibuat level terendah itu 12-12.4v. itu batas terwajar aki low. Kalau sampai 10v itu dah kebangetan sekali low nua, apalagi sampai 0.
Good job. What's the resistance value of each resistor in second model ...
Hi friend and congratulations for the project if I want to use the ;rst project for a 4s battery pack then composed of 4 3.7V batteries for a ;nal voltage of 14.4V can I still use the 1K resistors or which resistors should I use? Thank you! 🙏
1.2k maybe
Макетные платы это конечно удобно.. Но всегда круче развести печатную плату, и отфоторезистить её. Зачем я макеток набрал.. Куда их девать теперь)
sir the lights are in parlel or serios in method no 2?
Very niCe
Ek hi value ke resister se ya different level indicate karega
03:21 second project the diode 8,2v turned led on in 10.5v why ?
nice, its simple, thank you very much
Good job...nice and simple.
Sepertinya saya harus mengukuti anda lebih jauh. Bukan hanya tentang pengetahuan yang anda berikan, tapi komentar positif dari banyak penonton.
Awesome bro
Very good but by convention the LEDs would be green to red as the voltage increases, unless you wish to emphasize a voltage at some point along the range.
Thanks for very simple but useful circuit. 👍
BTW, what aplication used to edit your video? 🙄
super
greetings, and how is the calculation of the resistances, for the circuit with zener, since I need from 12 to 24 volts, thanks for your answer.
Other comments stated a Zener Diode, has a "Loss" (Voltage Drop) of 0.7 Volts, per Diode: so then it becomes a Math Question!
Thank you for sharing the video, it was very useful. Greetings re-introduction
I love this music more than your Diy indicator 😁
Sirji wich part need to change for 24v 20ah battery and wich is cheaper
It is possible to make the last one with 12 blue leds?
Hi, thank you for the circuit. I made one. Same with same value components. Problem is, during bar mode, first red LED is on and keeps still during voltage change. I am not sure it stays on during bar mode. At graph mode first 5 LED is OK slowly lighting till 11,25V but afterwards 0.5V change makes all rest of the LED light up. By mistake I cut 4,7K resistor out of the circuit and it start working correct smooth way between 10-13,6V after calibrating with POT... any idea what is going on and what that 4.7K stands for...
Add 1 100uf cap in +-
Is there any way to do the simple one with only 3 leds ?
Parabéns gostei top
Интересно.
Tankyu boss
como se llama esa placa que usa??
Very nice sir
whooo ... Exelente!!
Mantul...
how can we add Digital DC voltage meter.....in this diagram...to show the progressive charge value in voltages....hope to listen from you....Thanks Bro
Sir I Made this diagram using IC LM3914, but having Problem, that Some time it Show full Indicator & some time It Show only to Indicator. I not able to locate where is Problem.
Nice, I want a model of a 42 volt battery, what is the value of the resistance?
What model of camera do you use?
Thank you ∞
Vaiya ame akta 12volt cherger banai c.kintu ataptar onak grom /hit hoya jassa.akhon ame ki korbo.please help me
What's the name on the song used in 3:15? I really like that guitar part
muito bom parabéns
-gosto muito de eletronica
Lovely video.
Куда второй лайк влепить?
\
Лучше расскажи какой Акб выживет после первой схемы))
Да пожалуй первая схема не надежная, но второй и третий болье адекватный . На микрухе пожалуй соберу на отбойник. Резисторы надо попробовать так что бы не на полную светились, а то сожрут всю мощность. 😂
What resistance you use for a 9 v battery
hola amigo las resistencia son 18k, 47k, o la de 4.7k esque no se porque no me da resultado todo feo me enciende los led o el integrado lm 3915n-1 es igual lm3914n-1
Can u make RPM indikator with LED SMD , for motorbike 125cc ?!?!
Very nice can you please share the diagram of :
#2. 12v Battery Level indicator using Zener Diodes
1.Zener Diodes
8.2v, 9v, 10v, 11v, 12v.
2.ResistorS
R1-470 ohm, R2-390 ohm, R3- 330 ohm, R4-220 ohm, R5-47 ohm.
3.LED -(5 Pcs)
@Asghar Durrani . Thanks for your comment , Please see description for the circuit diagram.
ああっ、初めからメガネかけた白い鳥がーー笑笑
分かったら高評価！笑笑
so cool thank you so much. i am new subscrber
Thanks and welcome ''
Tks brother
Using LM3914 for battery level is the accurate one
It,s work for my truck? Can I use the 3er option in order to check the charge level? 10v to 14 v
Yes,
I think the 1st one is working great
In my opinion the first one was the most accurate
Very useful
muito bom.
Third is best... really.l
Excelente