Episode 43 of The Web Development Podcast with Fexingo dives into a hidden performance cost that rarely gets discussed: the battery impact of service workers on mobile devices. Lucas and Luna break down a real-world example from a major news site where a poorly optimized service worker was waking the radio chip every 30 seconds, draining the battery twice as fast. They explain what causes this — excessive fetch handlers, long-lived caches, and background sync intervals — and walk through concrete fixes like event-scope narrowing, cache-first strategies, and using the Background Sync API sparingly. If you're running a progressive web app or even just a simple caching service worker, this episode will change how you think about background scripts. No fluff, just actionable web performance advice.

#ServiceWorker #BatteryDrain #WebPerformance #PWAs #ProgressiveWebApps #MobileWeb #FetchHandler #CacheFirst #BackgroundSync #Navigator #ChromeDevTools #WebDev #Frontend #Technology #FexingoBusiness #BusinessPodcast #LucasAndLuna #WebDevelopmentPodcast

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