It is known that the 65-watt charger is faster than the 5-watt charger but most people do not know how and why that is. This post will explain the science behind how and why a 65-watt charger is faster than a 5-watt charger, how an iPhone battery works and how charging it works, why wattage affects the charging speed, and how other factors affect the charging speed. The average person does not know how a smartphone’s battery actually works. This topic is important because by knowing how the smartphone battery works, it will become easier to manage a phone and keep it in good condition. It is important to know how to properly manage a smartphone and how to keep a smartphone’s battery life high. These things are very important and every owner of a smartphone should know how to do these things. I have conducted an experiment to test my hypothesis and provide data. Both chargers will be compared on charging an iPhone 13 Pro’s 3095 milliampere/hour (mAh) battery from fifty to one hundred percent. This experiment will compare how much faster the 65-watt charger charges the iPhone than the 5-watt charger and why and how that is. This experiment will explain how the wattage of a charger affects how fast an iPhone 13 Pro’s battery charges and what is the science behind how the iPhone batteries work and what other factors affect the charging speed of a charger. This experiment will use an Anker 715 Charger (Nano II 65W), and an Anker 641 USB-C to Lightning Cable (Flow, 6ft Silicone) to allow the 65 watts to charge the iPhone properly. The other charger is the Apple 5W brick and the wire that comes with the iPhone.

1. What Is Wattage?
2. Analysis on Charging and Wattage
3. How Does the iPhone Battery Work?
4. Why Do Batteries Degrade Over Time?
5. Ways Companies Have Tried To Solve the Problem of Battery Degradation
6. Conclusion On Wattage and Charging Speed