The iPhone 15 Pro Max has excellent overall battery life, but it does struggle somewhat during intensive gaming sessions:
- In DXOMARK's battery tests, the iPhone 15 Pro Max demonstrated "poor autonomy during gaming" compared to other use cases. [5]
- CNET's 45-minute battery endurance test, which involved gaming, video watching, and social media use, found the iPhone 15 Pro Max lost only 3% battery - better than the iPhone 14 Pro Max and Galaxy S23 Ultra. [3]
- However, in CNET's 3-hour video streaming test, the iPhone 15 Pro Max retained 87% battery after 3 hours, outperforming the Galaxy S23 Ultra. This suggests the battery holds up better for less intensive tasks. [3]
- One reviewer noted the back of the iPhone 15 Pro Max got "warm" after 30 minutes of playing the graphically-demanding game Resident Evil Village, indicating the device was working hard and consuming more power. [4]
So in summary, the iPhone 15 Pro Max has excellent overall battery life that should last a full day or more for most users. But for intensive gaming sessions lasting 30 minutes or more, the battery life is not as impressive and the device may heat up. The battery performs better for less demanding tasks like video streaming.
Citations:[1] https://www.youtube.com/watch?v=2WpiQOj8ZR4
[2] https://www.phonearena.com/news/apple-iphone-15-battery-life-charging_id148910
[3] https://www.cnet.com/tech/mobile/my-iphone-15-pro-experience-after-a-month-these-phones-are-performance-beasts/
[4] https://www.nextpit.com/iphone-15-pro-max-portable-gaming-console
[5] https://www.dxomark.com/apple-iphone-15-pro-max-battery-test/