battery level indicator with lcd display made in china

Overcharging is terrible for your battery health as it can cause batteries to melt or swell. It could also be damaging to users if not controlled. Additionally, the casting of the battery could become too hot and cause flammable hydrogen to build up inside the sealed battery cells, leading to a bad battery. Luckily, there is a way to prevent overcharging from damaging your batteries: battery charge indicators.  So, in this article, you’ll learn everything about battery charge indicators and how to make an easy battery charge indicatorcircuit.

Battery indicators are devices that show the status of a battery. Plus, battery indicators usually have a visual indication that accurately displays the battery’s state of charge.

Also, different technologies that require an ideal battery to operate always have an inbuilt battery indicator. Examples of such technology are mobile phones and computers.

Some mobile phone battery charge indicators are usually inbar graphs--which means the more bars you see, the better the battery charge status. Others indicate battery charge level through percentages.

Likewise, a battery charge display shows the battery in charge mode in portable computers that use rechargeable batteries. Also, you can see the amount of time and battery power you have left when your laptop is not charging.

Additionally, phones and computers aren’t the only devices with a battery charge indicator. Other electronic devices like power banks and smartwatches also have battery charge indicator lights that tell you when your battery is low or full.

Furthermore, asmart battery systemfeatures a controller that’s integrated with an interchangeable battery pack. This integration is capable of delivering a more accurate indication of the battery charge state.

There are various ways to make a battery charge indicator circuit that accurately shows the charge state. Some of the battery charge indicator circuits we’ll be discussing include a battery percentage indicator circuit, battery level indicator circuit using LM3914, and battery full charge indicator circuit employing two transistors.

This circuit is easy to show the current percentage of any battery. What’s more, the circuit is not expensive to build. Here’s the circuit diagram below:

This indicator circuit displays the battery percentage via the LEDs in ascending order. The first LED shows 20%, while the second shows 60%. Also, the third, fourth, fifth LEDs show 60%, 80%, and 100%, respectively.

For this circuit, you won’t need to connect resistors in series with the LEDs. Why? Well, the IC is capable of regulating current on its own. Check out the circuit diagram below:

The LEDs (D1 to D10) show the battery’s capacity in display or dot mode. You can select your preferred mode via the SW1 (external switch), which you should connect to pin 9 of the IC.

Furthermore, you can use different LED colors to show the battery status. So, connect the red LEDs (D1 - D3) to show when you have a low battery. Then, connect the green LEDs (D8 - D10) to show when the battery is 80% or fully charged. While the yellow LEDs will indicate the other power status. Thus, each LED in this circuit shows a 10% battery level.

Here’s an indicator circuit with a mini design that indicates when a battery charge is complete by lighting up an LED. Also, this circuit uses only two transistors as its major components. Take a look at the circuit diagram below:

This preset allows the circuit diagram above and will light up the LED once the connected battery is complete. So, to set up this circuit, you’ll have to supply the upper charge level you want and make adjustments to enable the LED to glow when it reaches the set level.

Setting up the above circuit is relatively easy. Like the power-on circuit, you’ll have to supply the voltage equal to the high charge level you want for the battery and then carefully tweak the circuit with a screwdriver to ensure the LED goes off at the level you want.

Battery level indicators are essential devices for all battery-powered devices. Without it, you won’t know when your batteries need charging or stop charging when full to prevent damages from overcharging.

It’s even more critical for battery electric vehicles as the health of car batteries are crucial. Most of these vehicles come with a battery condition meter (voltmeter) that helps you monitor the condition of yourstarter battery.

Now, most modern cars come withammetersthat show when the battery is charging or discharging. However, both the voltmeter and ammeter can show the state and charging system of an automobile or automotive battery.

If you see a red light, your battery is fully discharged. If the red light is flashing, there isn"t enough power to turn on. Charge your phone for at least 30 minutes before restarting.

No, i talk with seller in electronics store around me. And the seller recommend me to buy the LCD and all of the components and he talk to me how to make it. so buy this and the seller give me all of the component. so i make it and upload the steps to my Instructables.

Perhaps you could ask the person at the store to give you the exact part number for that LCD... Or maybe that person could do an instructable. After all, it seems to be his/her design anyway!0

The hardware needed to make this battery level indicator is so specialized (i.e. the screen is not widely available at all) that the instructable is simply a teaser without any real way of making it! It is really a shame....

I also saw similar chargers on Aliexpress, but your link (and others I found on Aliexpress) sells the complete charger, and not only the LCD panel. It would be silly to buy the charger that you linked to and dismantle it to build the exact same charger which you just dismantled!

To provide you more detailed instruction, you can also click ASUS Youtube video link below to know more about Troubleshooting for No display on LCD Monitor

Check if the signal cable (VGA / DVI / HDMI / DisplayPort) is wellconnected , and confirmed another end of the output cable has been firmly connected to computer input port (graphics card). Unplug and plug 2-terminals again to ensure all pins aren"t bent.

Check if the signal cable (VGA / DVI / HDMI / DisplayPort) is wellconnected and confirmed another end of the output cable has been firmly connected to computer input port (graphics card). Unplug and plug 2-terminals again to ensure all the pins aren"t bent.

If the model had attached with the power supply (AC-adapter), make sure the power supply has connected to the screen. Please check if the light of power supply is ON. If the light is NOT ON, change another power supply to test.

Are there any regional differences inpower specifications thatASUS LCD monitor supported (for example: If monitor was bought in Taiwan, can it be used in China or other countries?)

ASUS LCD monitor can support power specification: AC 100-240V. As long as within this voltage range, the display can work properly. However, please be noted that if you bought a monitor from another region, the power cord is not necessarily compatible to power outlet. Customer should replace the appropriate power cord or plug adapter in order to ensure normal power supply of the display.

For such a minor feature, the battery percentage indicator in iOS 16 for iPhone has caused quite a commotion. While the feature was met with celebration, the UI design was not.

If you haven’t been keeping up with the drama, the issue involved how the battery icon looked pre-iOS 16.1. Long story short: the battery indicator appeared full, with a low-contrast number representing the battery percentage, even when an iPhone wasn’t at 100 percent.

With Monday’s release of iOS 16.1 (alongside iPadOS 16.1 and macOS Ventura), Apple fixed the UI flaw so that the battery icon depletes along with the number percentage. This is why feedback during beta periods is so important — Apple doesn’t always get it right and it can correct mistakes.

The introduction of the iPhone X was the big motivator for changing how Apple displayed battery life. While before you could toggle the battery percentage feature in the Settings app, iPhone models with notches from the iPhone X (and later) had to make do with having their battery life displayed in Control Center.

That all changed in iOS 16, which alongside a customizable lock screen, also brought back the battery percentage indicator in the status bar. The confusion, of course, was purely visual. If your iPhone is at 20 percent, why is the battery icon full?

In iOS 16, the battery percentage indicator was only available for select iPhones. iOS 16.1 adds the setting to the iPhone XR, iPhone 11, iPhone 12 mini, and iPhone 13 mini.

Additionally, you can also display your iPhone’s battery life in a lock screen widget. The iOS 16 battery lock screen widget displays the battery life of connected devices by default (AirPods, Apple Watch, etc.) but with a few tweaks, it can also display your iPhone’s battery.

Making the widget display your iPhone battery is as simple as changing a few settings.Ian Carlos Campbell / InverseDouble tap the widget, toggle “Automatic” to OFF and make sure your phone is selected in Devices.

Now you should have a dedicated lock screen widget that shows your iPhone’s battery at a glance. It’s perfect if you’ve got an iPhone 14 Pro with an always-on display or prefer a larger widget to the small battery percentage icon in the corner.

The Battery Tender Digital Voltage Indicator is designed for use on 12v Flooded, AGM and Gel batteries. It displays voltage between 3 to 16 volts. When the button is pushed or initially plugged in it will display the voltage, and has three indicator lights to let you know your batteries condition: Green (Battery Charged: Greater than 12.0v), Yellow (Battery is Low: 11.6 to 12.0v), and Red (Battery is Discharged: Less than 11.6v).

The Nano One is a really useful addition to your bag – you could use these to power everything from your lights to your computer. And as well as their small size, if you’re on location there’s no need to take a bulky V-mount charger with you.

We first saw a prototype of the battery at NAB earlier this year, and I have to admit, it was one of my favorite products from the show. Now that it is about to ship I wanted to put the FXLion Nano One to the test to see if it can live up to expectations.

The Nano One comes with D-Tap, USB-A, Micro USB, and USB-C ports, which is remarkable given how small the battery is. With so many ports you have a lot of flexibility to power a range of products.

The FXLion Nano One allows you to plug in your laptop and use the battery to power your computer. This is extremely handy if you’re out and about and don’t have access to mains power.

Not only can you charge your Mac from the Nano One, you can also charge the battery using your Mac power supply. For traveling this is ideal because you can use a single charger for two jobs.

There have been numerous times over the years where I was on location doing live crosses and the battery on my MacBook Pro would run out because there was no access to any power.

This is not the first time you have been able to power your Mac off a v-lock battery, but as far as I know, it’s the first battery that can do it directly without the need for any battery plate.

The adaptor came with a MagSafe2 plug to XLR cable. This allowed the voltage of any inserted battery to be stepped-up to 19.5V. This product was discontinued by Hawk-Woods many years ago and for some reason, they haven’t made a newer model that works with today’s Macs.

I also like the tactile grip that is on either side of the battery. This makes it easy to hold onto which is important when you are dealing with a small product.

As far as charging times are concerned, it really depends on what you are using to charge the battery. If you need to charge your battery quickly then it’s best to use a normal V-lock charger.

I also found that I could charge the battery via another V-lock battery as well as by using my DJI Mavic Pro 2 charger, via the USB port that is for charging the remote control.

It is significantly slower to charge the battery through USB-C and Micro-USB. In fact, saying it is significantly slower would be an understatement. There is a reason why nobody ever wants to quote charging times in their specifications when it comes to USB-C.

You can take the battery onboard airplanes without worrying – they’re under the threshold for carrying in hand luggage. You’ll be able to take up to 20 50Wh batteries with you on most airlines.

The low weight, small size and the ability to create a larger capacity battery by placing 2 of the 50Wh NANO ONE’s onto a dual V-lock battery plate make these batteries ideal for travel. As they can be charged in a variety of ways you also don’t necessarily have to travel with a large and heavy V-lock charger., although USB and USB-C charging is significantly slower.

What I found myself doing quite a lot was just keeping the battery on the NANOL0 plate that has a clip on the back of it. This way I could just keep it on me when I was shooting.

There were several times when I was shooting that my camera battery was getting low and my camera assistant wasn’t close to me, but I needed a battery. In this instance, I would just grab the NANO ONE and swap it over while I waited for my camera assistant to bring me a larger battery.

I also found myself using the NANO ONE to keep my Mac charged when I was out in the field without access to mains power. It is never a nice feeling to see you laptop battery getting low if you are doing a live cross or sending files back from a remote location. Having the ability to keep the laptop powered up is a big deal.

Most MacBook’s and MacBook Air’s internal batteries are around about 50-60Wh, which gives them a similar capacity as a 50Wh camera battery. With a NANO ONE and a fully charged internal laptop battery, you should get around double the normal run times you are accustomed to.

What I found is that not only could you use the FXLion NANO ONE batteries on the dual plate, but it also worked with the Hawk-Woods Mini V-Lok batteries as well.

Currently, the battery plate discharges both batteries at the same time but FXLion is looking into a solution that will allow you to hot-swap batteries for extended runtimes.

What I love about the NANO ONE is that FXLion hasn’t just made a battery and said, that will do. Instead, they developed a whole ecosystem around the battery.

There really isn’t that much competition for the NANO ONE. No other battery on the market offers quite the same functionality in the same form factor. Yes, there are other batteries such as the Hawk-Woods Mini V-Lok 14.4V 50Wh Li-Ion Battery that are the same size and capacity, but they don’t have any of the inputs and outputs of the NANO ONE.

The closest competitor would have to be the Mini PAGlink 50Wh Li-Ion battery packs which are not shipping yet. The PAG MPL50 batteries feature 12V and 5V outputs. Built into the battery are a fixed D-Tap output and a removable 2A USB, that can be swapped for a Lemo, Hirose or another D-Tap. This allows the power source to be configured with precisely the outputs you need. The 50Wh Mini PAGlink batteries measure 110 x 85 x 20mm (4.35″ x 3.35″ x 1″) and weigh just 350g (12oz).

The advantage the PAGlink batteries have over the NANO ONE is the ability to piggyback the batteries together. You don’t need a battery plate to do this.

The FXLion Nano One 50Wh battery will be shipping shortly for $179 USD. There’s no price or availability yet on the 100Wh version. Currently, FXLion doesn’t plan on making higher capacity versions of the Nano One.

At $179 USD the battery certainly offers very good value for money. As a comparison, the Hawk-Woods Mini V-Lok 14.4V 50Wh Li-Ion Battery retails for $249.60 USD.

I love products that are multi-versatile and solve real-world problems. Having a tiny v-lock battery that I can use to power a camera, light, monitor, smartphone, tablet, external recorder or a portable Mac computer is ideal.