Posted Jul 3, 2026 at 12:11 AM UTCRYoutubeRichard LawleriFixit goes to the source to explain how iPhone batteries are made.Instead of revealing more about your iPhones and other devices by tearing them apart, this time iFixit is inside a Chinese battery factory. The video shows how the lithium polymer cells are manufactured and tested, long before they end up in your pocket.If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement.Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.Richard LawlerLoading commentsGetting the conversation ready...Most PopularMost PopularXbox testing disc-to-digital feature that digitizes a physical game collectionAmazon has enough satellites to launch its Starlink competitorSony is killing discs — and showing us why it’s a terrible ideaRange anxietyBitTorrent’s disastrous, legendary, and controversial storyThe Verge DailyA free daily digest of the news that matters most.Email (required)By submitting your email, you agree to our Terms and Privacy Notice. This site is protected by reCAPTCHA and the Google Privacy Policyand Terms of Serviceapply.