How to Make Simple 12 Volt Battery Level Indicator Circuit?

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In this video, I will show you how to make a simple 12V battery level indicator circuit that can be created using only LEDs and resistors. Towards the end of the video, I will briefly show the simulation of this circuit in Proteus. First, let's start with what materials are needed for this circuit.
We will make the indicator level in 4 stages. Here we can use four LEDs, 1 red, 1 blue, 1 green and 1 yellow LED. Since the highest voltage will be around 12V, we need to use four 1kΩ resistors that we will connect for these LEDs to work without damage.

Опубликовано:

2 окт 2024

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Комментарии : 19

@marian20012 Год назад

this is nice but 12 volts battery wouldn't fall under 11 volts, otherwise it's broken.

@markae0 Год назад

lead-acid 12 volt batteries should not get too low yes

@eeapplications Год назад

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@CallousCoder Год назад

This is a battery wasting design, because the LEDs will all light up and drain the battery. And 4 LEDs around 10mA is 40mA/H that you initially just waste. But it’s a great academic teaching video though.

@markae0 Год назад

It needs a momentary switch instead of a full on/off switch is all.

@tools.no.problem Год назад

This is a simple voltage divider. Great way to introduce voltage dividers. Terrible circuit for battery powered devices. It will kill the battery very quickly.

@ryanraybusoy422 Месяц назад

hi sir good day .. how about 24Vdc supply ? i simply add the numbers of LED and Resistor ? with the same value of resistor ? is that correct ?

@GiC7 Год назад

Nice

@eeapplications Год назад

Thank you so much 😊

@AhangarRashid Год назад

Useful

@blauwzakjecrack Год назад

nice :)

@dmisi1 Год назад

if the 12v battery is on 6v it is very bad,... can you do one real useful circuit where 10v is very low for example

@tools.no.problem Год назад

Change the values of your voltage dividers. (Resistors).

@nickayivor8432 Год назад

👍

@shastriroopchand1245 Год назад

For lithium battery too?

@paulbonion Год назад

As long as it is 12v

@TheOleHermit Год назад

The LEDs only respond to voltage levels, regardless of the voltage source. This is not a circuit for charging. It is actually a discharging circuit. As such, a switch should be added to use it for only checking the battery level to protect lithium batteries from discharging too much, unless a charging circuit is constantly being used.