Additionally, if a service provider uses nongenuine battery parts, the replacement battery might be: Poorly designed or manufactured. A previously used battery. A damaged battery. An incorrect battery for your iPhone model. Any of the above could lead to insufficient battery capacity, improper fit, or performance issues.

Battery life (Hours) 1. iPhone 13 Pro Max. 9hrs 52mins. 2. iPhone 11 pro Max. 8hrs 29mins. 3. iPhone 13 Pro.

RAM. 6 GB. 4 GB. Battery Size. 3969 mAh (15.04 Wh) 3174 mAh. The iPhone 11 Pro Max is the longest lasting iPhone this year. It now features a significantly bigger battery, and Apple's official numbers say that it lasts more than the iPhone 11 and the smaller iPhone 11 Pro. Last year, that was not the case: then, the affordable XR was actually
One of the highlights of Apple's iPhone 11 family last year was the improved battery life that addressed one of the bigger criticism of 2018's iPhone XS and XS Max. This was achieved thanks to employing a more energy-efficient chipset (the Apple A13) and generously bumping the battery capacity.
First, you'll need to erase your iPhone. Tap General in the Settings app. Tap Reset. Battery troubleshooting showing how to reset your iPhone by tapping General in Settings, then tapping Reset (Image credit: iMore) Tap Erase All Content and Settings. Tap Erase Now since you're going to be restoring your iPhone as new.
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battery capacity of iphone 11