The iPhone 15 Plus battery is a lithium-ion (Li-ion) battery with capacity 4,383 mAh, voltage 3.9V, and energy 16.95 Wh. It is paired with the A16 Bionic processor, manufactured using a 4 nm process, offering high energy efficiency and improved performance.

• Battery life: 26 hours of video playback
• Battery life: 100 hours of audio playback
• Fast charging with power up to 25W
• Wireless charging with MagSafe 15W

For more information, you can visit the Repair Manual on Apple's website.