I’m not sure what’s changed other than iOS 12, but my iPhone’s battery is draining like never before. It can now drop from 100% to 50% sitting on my nightstand overnight. I thought maybe an app was doing something in the background, but the Battery area of Settings shows no activity whatsoever during that time.<\/p>\n
And, for many years, I’ve been taking my iPhone on day hikes and recording a GPS track with MotionX-GPS. I carry an external Jackery battery just in case, but the internal one usually lasts the whole day, six hours or so of camera and background GPS use. No longer. On my last two hikes, the battery drained to zero in under an hour. The Battery screen simply shows that MotionX-GPS was running; nothing looks out of the ordinary.<\/p>\n
The Battery Health display shows that Maximum Capacity is still 100% on this 18-month-old iPhone SE, although it notes that performance management has been applied due to an unexpected shutdown.<\/p>\n\n
Previously: Battery Health and Peak Performance Capacity<\/a>.<\/p>\n\n Update (2018-10-29): Rob Mathers<\/a>:<\/p>\n My SE started draining more heavily earlier this year. Not to the extent of yours, but still bad. I got the battery replaced, with small improvements, but eventually caved and went to the XS, which is way better.<\/p>\n I do still wonder what changed…<\/p>\n<\/blockquote>\n\n Jeff Baxendale<\/a>:<\/p>\n My 6s battery is at 88% max capacity (replaced last year for free) and says the performance throttling has been applied.<\/p>\n I’ve (+ my fam) generally noticed it draining faster too… trying to see what is doing it, but also hard to argue with how much more responsive the OS feels.<\/p>\n<\/blockquote>\n\n I’ve found that disabling Screen Time<\/a> helped a lot. My iPhone is now at 75-80% in the morning (still lower than with iOS 11). I’ve also noticed that turning Screen Time on makes the battery start draining quickly. I also tried turning off Compass Calibration<\/a>, but that didn’t seem to make a difference.<\/p>","protected":false},"excerpt":{"rendered":" I’m not sure what’s changed other than iOS 12, but my iPhone’s battery is draining like never before. It can now drop from 100% to 50% sitting on my nightstand overnight. I thought maybe an app was doing something in the background, but the Battery area of Settings shows no activity whatsoever during that time. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2018-10-26T20:27:32Z","apple_news_api_id":"bacf1ab4-3d46-4935-83c8-4f1648cc5413","apple_news_api_modified_at":"2020-10-05T18:20:05Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAAAw==","apple_news_api_share_url":"https:\/\/apple.news\/Aus8atD1GSTWDyE8WSMxUEw","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[28,31,1610,85,1338,1994,1737],"class_list":["post-23224","post","type-post","status-publish","format-standard","hentry","category-technology","tag-batterylife","tag-ios","tag-ios-12","tag-iphone","tag-iphone-se","tag-motionx-gps","tag-screen-time"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/23224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=23224"}],"version-history":[{"count":3,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/23224\/revisions"}],"predecessor-version":[{"id":23235,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/23224\/revisions\/23235"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=23224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=23224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=23224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
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