Detect Battery Status using HTML, CSS & JavaScript
Introduction
Hello everyone. Welcome to today’s tutorial on Codewithrandom. We’ll learn how to make Detect Battery Status which will help us to see the battery status of our device and it is connected to the API which shows that the browser has battery detection status or not. This project will is good for beginners and help them to build their front-end development skills. In Today’s session, We will use HTML, CSS, and JavaScript to complete this Detect Battery Status Project.
Project Description
Step 1
The HTML (Hypertext Markup Language) will help us to create the structure for the list with some necessary attributes and elements to make Detect Battery Status Project.
Step 2
Then we will use CSS (Cascading Stylesheet) which will help us to style or design the project with suitable padding and alignment in the Detect Battery Status Project.
Step 3
At last we will use JS (JavaScript) which will add a logic to make the Detect Battery Status Project responsive from the user end.
I hope you have got an idea about the project.
HTML Code for Detect Battery Status
First we’ll start with creating the structure of the Detect Battery Status project for that as you can see the above code we have used all the necessary elements & attributes to setup the structure. Let us know code the CSS part to add styling and aligned the tags.
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Detect Battery Status</title>
<!-- Google Fonts -->
<link
href="https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@400;500&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="container">
<div id="battery">
<div id="charge"></div>
<div id="charge-level"></div>
</div>
<div id="charging-time"></div>
</div>
<script src="script.js"></script>
</body>
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CSS Code for Detect Battery Status
Second comes the CSS code in which we have styled for the structure we have padded as well as aligned the Detect Battery Status project so that it is properly situated and doesn’t get messy with suitable CSS elements. Now we have created the structure using HTML and styled the webpage using CSS its time to add the functionality using JavaScript in this project.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-family: "Roboto Mono", monospace;
}
.container {
position: absolute;
transform: translate(-50%, -50%);
top: 50%;
left: 50%;
}
#battery {
box-sizing: content-box;
height: 7.8em;
width: 17.5em;
border: 0.6em solid #246aed;
margin: auto;
border-radius: 0.6em;
position: relative;
display: grid;
place-items: center;
}
#battery:before {
position: absolute;
content: "";
height: 5em;
width: 1.1em;
background-color: #246aed;
margin: auto;
top: 0;
bottom: 0;
right: -1.6em;
border-radius: 0 0.3em 0.3em 0;
}
#charge {
position: absolute;
height: 6.5em;
width: 16.25em;
background-color: #246aed;
top: 0.6em;
left: 0.6em;
}
#charge-level {
position: absolute;
font-size: 3em;
font-weight: 500;
}
#charging-time {
text-align: center;
font-size: 1.7em;
margin-top: 1.4em;
}
.active {
animation: charge-animation 3s infinite linear;
}
@keyframes charge-animation {
0% {
width: 0;
}
100% {
width: 16.25em;
}
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JavaScript Code for Detect Battery Status
Last stage of the project the JavaScript in which we have added the logical and coded as per the requirement with some conditions. Let us see the Final Output of the project Detect Battery Status using HTML, CSS & JavaScript (Source Code).
const chargeLevel = document.getElementById("charge-level");
const charge = document.getElementById("charge");
const chargingTimeRef = document.getElementById("charging-time");
window.onload = () => {
//For browsers that don't support the battery status API
if (!navigator.getBattery) {
alert("Battery Status Api Is Not Supported In Your Browser");
return false;
}
};
navigator.getBattery().then((battery) => {
function updateAllBatteryInfo() {
updateChargingInfo();
updateLevelInfo();
}
updateAllBatteryInfo();
//When the charging status changes
battery.addEventListener("chargingchange", () => {
updateAllBatteryInfo();
});
//When the Battery Levvel Changes
battery.addEventListener("levelchange", () => {
updateAllBatteryInfo();
});
function updateChargingInfo() {
if (battery.charging) {
charge.classList.add("active");
chargingTimeRef.innerText = "";
} else {
charge.classList.remove("active");
//Display time left to discharge only when it is a integer value i.e not infinity
if (parseInt(battery.dischargingTime)) {
let hr = parseInt(battery.dischargingTime / 3600);
let min = parseInt(battery.dischargingTime / 60 - hr * 60);
chargingTimeRef.innerText = `${hr}hr ${min}mins remaining`;
}
}
}
//Updating battery level
function updateLevelInfo() {
let batteryLevel = `${parseInt(battery.level * 100)}%`;
charge.style.width = batteryLevel;
chargeLevel.textContent = batteryLevel;
}
});50+ HTML, CSS & JavaScript Projects With Source Code
Output
Live Preview of Detect Battery Status using HTML, CSS & JavaScript
See the Pen
Detect Battery Status by Harsh Sawant (@harshh9)
on CodePen.
We have Successfully created our Detect Battery Status using HTML, CSS & JavaScript (Source Code). You can use this project for your personal needs and the respective lines of code are given with the code pen link mentioned above.
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Code Idea – codingartist
Written By – Harsh Sawant
Code By – @harshh9
