The iPhone 14 Plus battery is a lithium-ion (Li-ion) type with capacity of 4,323 mAh, voltage of approximately 3.9V, and energy of 16.68 Wh. It is paired with the A15 Bionic processor, which is manufactured using the 5nm process, offering high performance and optimized power consumption.

Its battery life reaches up to 26 hours of video playback and 100 hours of audio playback, providing excellent usage duration compared to other models in the series. The device supports fast charging with power up to 20W and wireless charging with MagSafe 15W.