Apple iPhone 15 Plus Battery test

The Apple iPhone 15 Plus achieved an excellent global battery score and ranked above its predecessor thanks to slightly better charging experience. The iPhone 15 Plus’s battery score nearly matched that of the 15 Pro Max, but it was held back by a slightly lower performance during the typical usage scenario tests.

Still, the iPhone 15 Plus showed excellent results in the typical usage scenario, with the device’s autonomy lasting 2.5 days in moderate use and losing less than 1% of power per night on average. Tests of individual indoor usage also demonstrated autonomy that was above average, especially when watching videos. However, outdoor performances were slightly below average compared with other devices from the database.

Despite a better charging experience than its predecessor, charging was overall poor, taking longer than average. The 30W charger took 2 hours to fill up the iPhone 15 Plus’s battery, and the wireless charger took 2 hours and 52 minutes. Moreover, during the boost charging test, the iPhone 15 Plus regained only 3 hours and 42 minutes of additional autonomy, which was below average.

The wireless charge efficiency was good, but the wired one was very low at only 68%, meaning that almost a third of the power drained by the charger was lost. However, the residual consumption of both wired and wireless chargers was very low whether the fully charged device was still plugged in or not. Finally, the discharge efficiency of the Apple iPhone 15 Plus was excellent thanks to low discharge currents in almost all test cases, meaning that the device was well-optimized.

Compared with devices from the Ultra-premium price range ($800+), the iPhone 15 Plus stands among the best thanks to its excellent autonomy and efficiency. However, its charging score was low for this segment

Test Summary