This is a physical limitation of battery technology and cannot be fixed just by magically increasing “quality.” A lithium-ion battery will degrade after a few h

This is a physical limitation of battery technology and cannot be fixed just by magically increasing “quality.” A lithium-ion battery will degrade after a few hundred charge cycles. In order to fix this, Apple would either need to make some serious tradeoffs (like drastically increasing phone cost and size) or make some world-changing breakthroughs in battery technology.