Three-Year iPhone Battery Test: 80% Charge Limit Yields 97% Capacity
MacRumors reports that limiting iPhone charging to 80% over three years resulted in 97% battery capacity for the iPhone 17 Pro Max, outperforming previous models. The iPhone 16 Pro Max reached 94% after one year, while the iPhone 15 Pro Max held 94% after its first year. The author attributes the improved results to USB-C charging and better thermal management in newer devices. Commenters debate whether the trade-off of reduced daily battery life is worth the marginal longevity gains, noting that many users see similar capacity without limits.