![After 6 years, my galaxy S7 still holds about 70% of its charge. Google says that the average lifespan of a phone battery is 3-4 years. Am I just lucky that it After 6 years, my galaxy S7 still holds about 70% of its charge. Google says that the average lifespan of a phone battery is 3-4 years. Am I just lucky that it](https://preview.redd.it/after-6-years-my-galaxy-s7-still-holds-about-70-of-its-v0-4pek5a9u6q0b1.jpg?auto=webp&s=a25ddcd74b9058a40715992a3482769ac7c0e6c2)
After 6 years, my galaxy S7 still holds about 70% of its charge. Google says that the average lifespan of a phone battery is 3-4 years. Am I just lucky that it
Typical cell phone battery's capacity is 4000 mAh, where 1 mAh is a milliampere-hour, and corresponds to the battery providing a current of 0.001 A for one hour. How much charg does
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