I have an iPhone 11 Pro Max. I refused to update my phone because I thought that they slowed the phones down with every update, but I said you know what I’ll download the update. After I updated I noticed that I’ve had very long battery life ever since. I unplugged my phone 30 minutes ago and I’m still at 100 percent lol. Anker Portable Charger, 20,000mAh Power Bank, Battery Pack with 2-Port, 15W High-Speed Charging for iPhone 15/15 Plus/15 Pro/15 Pro Max, 14/13/12 Series, Samsung Galaxy, and More (Black) 4.4 out of 5 stars 1,239 Ex7s.

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