The iPhone’s battery runs out fast! We change the battery in 30 minutes at the shortest day.
「My iPhone used to charge 100% in the morning, but in the evening it only charges 0%!!!」
「My iPhone runs out of battery fast!!!」
This symptom is most likely due to the deterioration of the battery inside iPhone.
Replacing the battery with a new one will improve symptoms and make the battery last longer.
You can check the maximum capacity of the battery in “settings” → “Battery” → “Battery Health” → “Maximum Capacity”.
A new iPhone, or an iPhone with a new battery, has a 100% Maximum Capacity.
If you continue to use iPhone, the battery degrades and the Maximum Capacity percentage decreases.
If this percentage reaches 90%, you will feel your battery is depleted quickly, and if you reach 80%, your battery will be depleted within a few hours unless you charge it quite quickly.