Dose 20W fast Charge effect on iPhone 11 battery life

Hi valia97,

Welcome to the Apple Support Communities!

We understand that you're concerned about your battery life when using a 20W USB-C Power Adapter and you've already reviewed Fast charge your iPhone.

Fast charge doesn't deplete your iPhone battery any quicker than a power adapter which only charges at 18W, for example. You can learn more about what you can expect from your iPhone battery here: iPhone Battery and Performance

We hope this helps.

Cheers!

Are you saying it doesn't deplete the battery charge? What charger should be used to provide the best lifespan for the iphone battery? The link you provided makes no mention to the biggest factor in battery lifespan and that is the type and size of charger. Like in other devices, fast charge is a convenience with a tradeoff in overall battery lifespan. Are you saying this is different for the iphone?