How an iPhone battery works and how to manage battery health

Your iPhone uses a lithium-ion battery that degrades over time, but there is little reason to worry about battery health in a new device. Here's what you need to know about your iPhone's battery.

What you need to know about iPhone batteries

Batteries are not mysterious black boxes that power your iPhone, in fact, they are quite simple products compared to the advanced silicon they are powering. The physical nature of batteries mean that they will ultimately wear out and become less useful over time, but device owners don't need to worry.

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