How to recover battery health

Hello Siman22,

We see you have a question regarding battery health on your iPhone, and we'd be happy to help clarify.

When referring to the Maximum Capacity listed in Settings > Battery > Battery Health, there would not be a way to increase this for a particular battery in the device. The only way to restore the Maximum Capacity to 100% would be to have the battery replaced by an Apple Store/Apple Authorized Service Provider. It'll be normal for the capacity to decline over time with usage. As the text at the top of the Battery Health screen notes, "Phone batteries, like all rechargeable batteries, are consumable components that become less effective as they age."

Some additional helpful info on the topic can be found here: iPhone Battery and Performance

You can also find tips on how to maximize both the battery life, as well as the lifespan of the battery here:

Maximizing Battery Life and Lifespan

Cheers.

Batteries degrade as you use them. You can’t restore any health to it. When it gets to 80% or less, get a new battery.