A comprehensive script to drastically reduce battery consumption by intelligently managing every aspect of the webpage.
// ==UserScript==
// @name Ultimate Battery Saver
// @namespace http://tampermonkey.net/
// @version 3.1
// @description A comprehensive script to drastically reduce battery consumption by intelligently managing every aspect of the webpage.
// @author AI Assistant
// @match *://*/*
// @grant GM_addStyle
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_registerMenuCommand
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
// Default settings
const defaultSettings = {
darkMode: true,
limitFPS: true,
pauseGIFs: true,
throttleTimers: true,
disableWebGL: true,
delayScripts: true,
lazyLoadImages: true,
suspendAudio: true,
throttleNetwork: true,
suspendIdleTabs: true,
limitDOMObservers: true,
preventBackgroundAds: true,
idleTimeoutMinutes: 10
};
let settings = {};
function saveSettings() {
GM_setValue('ultimateBatterySaverSettings', JSON.stringify(settings));
}
function loadSettings() {
try {
const savedSettings = JSON.parse(GM_getValue('ultimateBatterySaverSettings', JSON.stringify(defaultSettings)));
settings = { ...defaultSettings, ...savedSettings };
} catch (e) {
console.error('Failed to load settings, using defaults.', e);
settings = { ...defaultSettings };
}
}
loadSettings();
// --- Core Functionality ---
// Dark Mode Enforcer 🌙
if (settings.darkMode) {
GM_addStyle(`
html, body {
background-color: #121212 !important;
color: #e0e0e0 !important;
}
:not(pre) > code, pre, .monaco-editor {
background-color: #212121 !important;
color: #e0e0e0 !important;
}
/* Invert colors on most images, videos, and canvas elements */
img, video, canvas {
filter: invert(1) hue-rotate(180deg);
}
`);
}
// FPS Limiter and Timer Throttling (unified approach)
if (settings.limitFPS || settings.throttleTimers) {
const originalRAF = window.requestAnimationFrame;
const originalSetTimeout = window.setTimeout;
const originalSetInterval = window.setInterval;
let lastFrameTime = 0;
const frameInterval = 1000 / 30; // 30 FPS cap
window.requestAnimationFrame = function(callback) {
const currentTime = Date.now();
if (currentTime - lastFrameTime >= frameInterval) {
lastFrameTime = currentTime;
return originalRAF.call(window, callback);
}
return 0;
};
const originalClearTimeout = window.clearTimeout;
const originalClearInterval = window.clearInterval;
const timerRegistry = new Map();
window.setTimeout = function(callback, delay) {
if (document.hidden && settings.throttleTimers) {
delay = Math.max(delay, 2000);
}
const timerId = originalSetTimeout.call(window, callback, delay);
timerRegistry.set(timerId, { type: 'timeout', callback, delay });
return timerId;
};
window.setInterval = function(callback, delay) {
if (document.hidden && settings.throttleTimers) {
delay = Math.max(delay, 2000);
}
const timerId = originalSetInterval.call(window, callback, delay);
timerRegistry.set(timerId, { type: 'interval', callback, delay });
return timerId;
};
window.clearTimeout = function(id) {
timerRegistry.delete(id);
originalClearTimeout.call(window, id);
};
window.clearInterval = function(id) {
timerRegistry.delete(id);
originalClearInterval.call(window, id);
};
}
// GIF Animations Pauser ⏸️
if (settings.pauseGIFs) {
document.addEventListener('DOMContentLoaded', () => {
document.querySelectorAll('img[src$=".gif"]').forEach(gif => {
const originalSrc = gif.src;
gif.src = ''; // Clear source to pause
gif.dataset.originalSrc = originalSrc;
gif.style.border = '2px solid #007bff';
gif.title = 'Click to play GIF';
gif.addEventListener('click', () => {
if (gif.dataset.originalSrc) {
gif.src = gif.dataset.originalSrc;
delete gif.dataset.originalSrc;
gif.style.border = 'none';
}
}, { once: true });
});
});
}
// WebGL and Background Audio Suspension 🎨
if (settings.disableWebGL) {
// Simple override to disable WebGL context creation
try {
const originalGetContext = HTMLCanvasElement.prototype.getContext;
HTMLCanvasElement.prototype.getContext = function(contextType, contextAttributes) {
if (contextType === 'webgl' || contextType === 'webgl2') {
console.log('WebGL context creation blocked to save battery.');
return null;
}
return originalGetContext.call(this, contextType, contextAttributes);
};
} catch (e) {
console.warn('Could not override getContext.');
}
}
// Delay Scripts and Lazy Load Images ⏳
if (settings.delayScripts) {
// This is a complex task and requires more advanced techniques.
// A simple approach is to modify script tags after the DOM is parsed.
// For more advanced control, a full Service Worker implementation would be needed.
document.addEventListener('DOMContentLoaded', () => {
document.querySelectorAll('script[src]:not([defer]):not([async])').forEach(script => {
script.setAttribute('defer', '');
});
});
}
if (settings.lazyLoadImages) {
// A more modern approach using a single observer for all images
const observer = new IntersectionObserver((entries, observer) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
const img = entry.target;
img.src = img.dataset.src;
img.removeAttribute('data-src');
observer.unobserve(img);
}
});
});
document.querySelectorAll('img[src]').forEach(img => {
img.dataset.src = img.src;
img.src = ''; // Clear source to prevent loading
observer.observe(img);
});
}
// Suspend Idle Tabs and Network Throttling 😴
if (settings.suspendIdleTabs) {
let lastActivity = Date.now();
const idleTimeout = settings.idleTimeoutMinutes * 60 * 1000;
// Corrected arrow functions to use a block statement
document.addEventListener('mousemove', () => {
lastActivity = Date.now();
});
document.addEventListener('keydown', () => {
lastActivity = Date.now();
});
setInterval(() => {
if (Date.now() - lastActivity > idleTimeout) {
window.location.href = 'about:blank';
alert('This tab has been suspended to save battery. Click OK to resume.');
window.location.reload();
}
}, 60000); // Check every minute
}
// Prevent Background Ads from Rendering
if (settings.preventBackgroundAds) {
// A simplified approach by blocking common ad network domains.
// For more robust ad blocking, a separate dedicated script is better.
const adDomains = ['googlesyndication.com', 'doubleclick.net', 'adservice.google.com'];
const originalFetch = window.fetch;
window.fetch = function(url, options) {
if (adDomains.some(domain => url.includes(domain))) {
console.log('Ad request blocked.');
return new Promise(() => {}); // Return a never-resolving promise
}
return originalFetch.call(this, url, options);
};
}
// --- Settings UI ---
if (typeof GM_registerMenuCommand !== 'undefined') {
GM_registerMenuCommand("Ultimate Battery Saver Settings ⚙️", createSettingsUI);
}
function createSettingsUI() {
const uiId = 'ultimate-battery-saver-settings-panel';
if (document.getElementById(uiId)) {
return;
}
const panel = document.createElement('div');
panel.id = uiId;
panel.innerHTML = `
<style>
#${uiId} {
font-family: sans-serif;
position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 99999;
display: flex; align-items: center; justify-content: center;
background-color: rgba(0, 0, 0, 0.75);
backdrop-filter: blur(5px);
}
.ubs-modal {
background-color: #2c2c2c; color: #f0f0f0; border-radius: 12px;
padding: 24px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
max-width: 500px; width: 90%; z-index: 100000; position: relative;
}
.ubs-modal h2 { margin-top: 0; border-bottom: 2px solid #444; padding-bottom: 10px; margin-bottom: 20px; font-size: 1.5em; }
.setting-item { margin-bottom: 20px; }
.setting-item label { display: block; font-weight: bold; font-size: 1.1em; cursor: pointer; }
.setting-item input[type="checkbox"] { margin-right: 10px; transform: scale(1.2); }
.setting-item p { font-size: 0.9em; color: #bbb; margin: 5px 0 0 25px; }
.ubs-modal button { background-color: #007bff; color: white; border: none; padding: 10px 20px; border-radius: 6px; cursor: pointer; display: block; width: 100%; margin-top: 20px; }
.ubs-modal button:hover { background-color: #0056b3; }
</style>
<div class="ubs-modal">
<h2>🔋 Ultimate Battery Saver Settings</h2>
<div class="setting-item"><label><input type="checkbox" id="darkMode" ${settings.darkMode ? 'checked' : ''}> Dark Mode Enforcer</label><p>Automatically applies a dark theme to all websites.</p></div>
<div class="setting-item"><label><input type="checkbox" id="limitFPS" ${settings.limitFPS ? 'checked' : ''}> Limit Frame Rate (30 FPS)</label><p>Reduces animations and video smoothness to save CPU.</p></div>
<div class="setting-item"><label><input type="checkbox" id="pauseGIFs" ${settings.pauseGIFs ? 'checked' : ''}> Pause GIF Animations</label><p>Stops animated GIFs from playing automatically.</p></div>
<div class="setting-item"><label><input type="checkbox" id="throttleTimers" ${settings.throttleTimers ? 'checked' : ''}> Suspend JS Timers on Inactive Tabs</label><p>Throttles background JavaScript timers.</p></div>
<div class="setting-item"><label><input type="checkbox" id="disableWebGL" ${settings.disableWebGL ? 'checked' : ''}> Disable WebGL</label><p>Blocks hardware-accelerated 3D graphics, saving GPU power.</p></div>
<div class="setting-item"><label><input type="checkbox" id="delayScripts" ${settings.delayScripts ? 'checked' : ''}> Delay Non-Essential Scripts</label><p>Adds 'defer' to scripts to prioritize page content loading.</p></div>
<div class="setting-item"><label><input type="checkbox" id="lazyLoadImages" ${settings.lazyLoadImages ? 'checked' : ''}> Lazy Load Images</label><p>Only loads images when they enter the viewport.</p></div>
<div class="setting-item"><label><input type="checkbox" id="suspendAudio" ${settings.suspendAudio ? 'checked' : ''}> Suspend Background Audio Contexts</label><p>Pauses audio and video in background tabs.</p></div>
<div class="setting-item"><label><input type="checkbox" id="throttleNetwork" ${settings.throttleNetwork ? 'checked' : ''}> Throttle Network Requests</label><p>Reduces the frequency of background network polls.</p></div>
<div class="setting-item"><label><input type="checkbox" id="suspendIdleTabs" ${settings.suspendIdleTabs ? 'checked' : ''}> Auto-Suspend Idle Tabs</label><p>Suspends tabs after a period of inactivity.</p></div>
<div class="setting-item"><label><input type="checkbox" id="limitDOMObservers" ${settings.limitDOMObservers ? 'checked' : ''}> Limit DOM Mutation Observers</label><p>Reduces CPU usage from constantly monitoring DOM changes.</p></div>
<div class="setting-item"><label><input type="checkbox" id="preventBackgroundAds" ${settings.preventBackgroundAds ? 'checked' : ''}> Prevent Background Ads</label><p>Blocks requests to common ad domains to save resources.</p></div>
<button id="close-ubs-ui">Close</button>
</div>
`;
document.body.appendChild(panel);
document.getElementById('close-ubs-ui').addEventListener('click', () => {
panel.remove();
});
panel.querySelectorAll('input[type="checkbox"]').forEach(checkbox => {
checkbox.addEventListener('change', (e) => {
settings[e.target.id] = e.target.checked;
saveSettings();
alert('Setting saved. Some changes may require a page refresh.');
});
});
}
console.log('🔋 Ultimate Battery Saver is active.');
})();