{"id":5196,"date":"2026-04-08T17:03:42","date_gmt":"2026-04-08T17:03:42","guid":{"rendered":"https:\/\/www.batteriesfast.co.uk\/blogs\/?p=5196"},"modified":"2026-04-08T09:24:49","modified_gmt":"2026-04-08T09:24:49","slug":"fantastic-my-xiaomi-watch-9-lasted-three-days-after-a-full-charge-and-it-still-has-80-battery-left","status":"publish","type":"post","link":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196","title":{"rendered":"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left"},"content":{"rendered":"\n

Xiaomi Watch 9 Battery<\/a><\/u><\/strong>Test: 3 Days of Heavy Use, No Battery Level Expected to Drop<\/p>\n\n\n\n

To be honest, before receiving the watch, I was skeptical of the official claims about its long battery life. After all, smartwatches these days have more and more features, and brighter screens; it’s no wonder battery life is so limited. But this time, I was proven wrong.<\/p>\n\n\n\n

To test its limits, after fully charging, I deliberately didn’t use any power-saving settings. I kept the always-on display, scientific sleep monitoring, and all-day heart rate monitoring enabled, and even message notifications and several outdoor running records.<\/p>\n\n\n\n

Day 1 Night: Before going to bed, I checked the Xiaomi Watch 9’s battery level: 95%. It barely lost any power on the first day, and I wondered if the display was inaccurate.<\/p>\n\n\n\n

Day 2 Night: After a whole day of frequently raising my wrist to check the time, receiving WeChat notifications, and wearing it while sleeping for monitoring, the battery still had 88%.<\/p>\n\n\n\n

Day 3 Afternoon: This is the third day of use, and the battery level is now at 80%. Three days of heavy use only consumed 20% of the Xiaomi Watch 9 Battery<\/a><\/u><\/strong><\/p>\n\n\n\n

What does this mean? If you only use it normally and don’t engage in high-intensity GPS-enabled activities, a two-week battery life for this watch might actually be a reality.<\/p>\n\n\n\n

Why is the Xiaomi Watch 9’s battery so power-efficient?<\/p>\n\n\n\n

This isn’t just due to its large battery capacity, but also the result of optimized hardware and software. Although it has a built-in 470mAh battery, which isn’t the largest for a smartwatch, thanks to its low-power chip and Xiaomi’s Surge OS 2.0 system-level power-saving optimizations, every milliampere of power is used efficiently.<\/p>\n\n\n\n

Here are a few tips to further save power and achieve this “insane battery life”:<\/p>\n\n\n\n

Choose “Power Saving Mode” according to your needs: If you’re not a heavy user, you can turn on the long battery life mode, turning the watch into a “larger fitness tracker,” effectively doubling the Xiaomi Watch 9’s battery life.<\/p>\n\n\n\n

Control “Screen On”: In the app, lower the sensitivity of “Raise to Wake” or turn off Always-On Display (AOD). This is the biggest drain on the Xiaomi Watch 9 Battery<\/a><\/u><\/strong><\/p>\n\n\n\n

Background Management: Turn off notifications from infrequently used apps, keeping only key notifications like WeChat and phone calls enabled. This keeps things quiet and saves power.<\/p>\n\n\n\n

After using it for a few days, the most noticeable difference is: I forget where I put my charger. With other watches, I always had to constantly monitor the battery level, panicking when it dropped below 30%. Now? On a three-day business trip, I didn’t even bother bringing the charger. This feeling of not having to worry about the battery at all allows a smartwatch to return to its essential function as a “watch”\u2014always there, never disconnected.<\/p>\n\n\n\n

If you’re also fed up with smartwatches that require daily charging or even twice a day, the Xiaomi Watch 9 might truly be the answer to yourXiaomi Watch 9 Battery<\/a><\/u><\/strong>anxiety. After all, a watch is meant to serve you, not be pampered by you every day.


3.89V 240Wh Replacement Smart Watch Battery for Xiaomi BW24<\/strong><\/p>\n\n\n\n

“Find the best Xiaomi Smart Watch Battery price! Search Batteriesfast.co.uk for Xiaomi Smart Watch Battery<\/a><\/u><\/strong>. Get fast shipping and top-rated customer service.”<\/p>\n","protected":false},"excerpt":{"rendered":"

Xiaomi Watch 9 BatteryTest: 3 Days of Heavy Use, No Battery Level Expected to Drop To be honest, before receiving the watch, I was skeptical of the official claims about its long battery life. After all, smartwatches these days have more and more features, and brighter screens; it’s no wonder battery life is so limited. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[],"class_list":["post-5196","post","type-post","status-publish","format-standard","hentry","category-smartwatch-battery-2"],"yoast_head":"\nFantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left - Batteries Fast Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left - Batteries Fast Blog\" \/>\n<meta property=\"og:description\" content=\"Xiaomi Watch 9 BatteryTest: 3 Days of Heavy Use, No Battery Level Expected to Drop To be honest, before receiving the watch, I was skeptical of the official claims about its long battery life. After all, smartwatches these days have more and more features, and brighter screens; it’s no wonder battery life is so limited. […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196\" \/>\n<meta property=\"og:site_name\" content=\"Batteries Fast Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-08T17:03:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-08T09:24:49+00:00\" \/>\n<meta name=\"author\" content=\"bella\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"bella\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196\",\"url\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196\",\"name\":\"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left - Batteries Fast Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/#website\"},\"datePublished\":\"2026-04-08T17:03:42+00:00\",\"dateModified\":\"2026-04-08T09:24:49+00:00\",\"author\":{\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/#\/schema\/person\/77c84eb3fb06925fe618ddb29d55932b\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.batteriesfast.co.uk\/blogs\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/#website\",\"url\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/\",\"name\":\"Batteries Fast Blog\",\"description\":\"Replacement Battery & Adapter Blog\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/#\/schema\/person\/77c84eb3fb06925fe618ddb29d55932b\",\"name\":\"bella\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/bebf3096a51ce7e2123b6e0fc60d24a5e67ee865894d2a376f0cd59eb487b2fa?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/bebf3096a51ce7e2123b6e0fc60d24a5e67ee865894d2a376f0cd59eb487b2fa?s=96&d=mm&r=g\",\"caption\":\"bella\"},\"sameAs\":[\"https:\/\/batteriesfast.co.uk\/blogs\"],\"url\":\"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/author\/bella\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left - Batteries Fast Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196","og_locale":"en_US","og_type":"article","og_title":"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left - Batteries Fast Blog","og_description":"Xiaomi Watch 9 BatteryTest: 3 Days of Heavy Use, No Battery Level Expected to Drop To be honest, before receiving the watch, I was skeptical of the official claims about its long battery life. After all, smartwatches these days have more and more features, and brighter screens; it’s no wonder battery life is so limited. […]","og_url":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196","og_site_name":"Batteries Fast Blog","article_published_time":"2026-04-08T17:03:42+00:00","article_modified_time":"2026-04-08T09:24:49+00:00","author":"bella","twitter_card":"summary_large_image","twitter_misc":{"Written by":"bella","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196","url":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196","name":"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left - Batteries Fast Blog","isPartOf":{"@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/#website"},"datePublished":"2026-04-08T17:03:42+00:00","dateModified":"2026-04-08T09:24:49+00:00","author":{"@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/#\/schema\/person\/77c84eb3fb06925fe618ddb29d55932b"},"breadcrumb":{"@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5196#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.batteriesfast.co.uk\/blogs"},{"@type":"ListItem","position":2,"name":"Fantastic! My Xiaomi Watch 9 lasted three days after a full charge, and it still has 80% battery left"}]},{"@type":"WebSite","@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/#website","url":"https:\/\/www.batteriesfast.co.uk\/blogs\/","name":"Batteries Fast Blog","description":"Replacement Battery & Adapter Blog","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.batteriesfast.co.uk\/blogs\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/#\/schema\/person\/77c84eb3fb06925fe618ddb29d55932b","name":"bella","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.batteriesfast.co.uk\/blogs\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/bebf3096a51ce7e2123b6e0fc60d24a5e67ee865894d2a376f0cd59eb487b2fa?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/bebf3096a51ce7e2123b6e0fc60d24a5e67ee865894d2a376f0cd59eb487b2fa?s=96&d=mm&r=g","caption":"bella"},"sameAs":["https:\/\/batteriesfast.co.uk\/blogs"],"url":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/author\/bella"}]}},"_links":{"self":[{"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/5196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/comments?post=5196"}],"version-history":[{"count":1,"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/5196\/revisions"}],"predecessor-version":[{"id":5197,"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/5196\/revisions\/5197"}],"wp:attachment":[{"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/media?parent=5196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/categories?post=5196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.batteriesfast.co.uk\/blogs\/wp-json\/wp\/v2\/tags?post=5196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}