It’s been almost seven months since I first turned on my iPhone 15 Pro, and it’s time to see how it has faired. While there are so many things I want to say about this device, I want to keep my focus on one of the most important aspects that impact longevity — its battery life.
I switched from the iPhone 12 mini to the iPhone 15 Pro in February, and while I still miss the mini form factor, the extra battery life has been a pleasant experience. All through these past seven months the phone has lasted me the entire day, even though I am running the iOS 18 beta on it.
Understanding iPhone’s battery health
Checking the battery health on iPhone 15 Pro, you will notice that it has dropped to 98% with a cycle count of 213. If you don’t understand these numbers, here’s a brief explanation.
Apple uses lithium-ion batteries to power your iPhones. Without going into technical details, a lithium-ion battery stores energy by moving lithium ions from one side to the other, when you charge your phone. As you use it, those ions move back releasing energy to keep your device running. The process becomes less efficient as the…