iPhone 17 Pro Max battery: capacity, life & charging
Verified battery capacity, rated playback time and charging details for the iPhone 17 Pro Max, each with its official source and verification date.
Short answer
The verified source rates the iPhone 17 Pro Max for 39 hours of video playback on a charge. Video playback is rated at up to 39 hours. Wireless MagSafe charging is rated at up to 25 W.
✓5 verified fields · sources reviewed Aug 26, 2026
Battery & charging at a glance
Evidence, field by field
Every value below is drawn from the official specification source for this phone, with its verification date.
| Field | Verified value | Source |
|---|---|---|
| Video playback hours | 39 hours | |
| Streamed video hours | 35 hours | |
| MagSafe charging | 25 W | |
| Qi2 w | 25 W | |
| Fast charge | Up to 50% charge in 20 minutes 8 with 40W adapter or higher (available separately) paired with USB-C charging cable | Official sourceUp to 50% charge in 20 minutes 8 with 40W adapter or higher (available separately) paired with USB-C charging cable Open source ↗Aug 26, 2026 |
What this page does not claim
Battery life depends on usage, settings and battery age. TePhone reports the official rated figure and the verified charging limit, and never fabricates a battery-capacity number.