The Battery Is Vulnerable When Charging
When you’re charging an iPhone battery, it depends on a certain quality of charge during the process – a reliable flow of power. This is particularly affected by temperatures, especially low temperatures that can affect charging equipment and the charging process by slowing them down. This can cause permanent damage to your battery over time.
Try to avoid charging your battery in a cold environment, especially in a place that has reached below freezing / 32 degrees Fahrenheit. That’s a recipe for a short battery lifespan and battery replacements.