00:00Custom silicon and algorithms handle all of the charging, discharging, and rebalancing.
00:05So these two batteries operate seamlessly as one.
00:09The result is an impressive all-day battery life.
00:13You get up to 31 hours of video playback when using the inner display,
00:17and a massive 44 hours when using the outer display.
00:21And with our new battery usage model,
00:24iPhone Duo provides up to 24 hours per charge when using both screens equally.
00:30It also supports fast charging, up to 50% in around 20 minutes,
00:35and gives you up to 5 hours of video playback when using the outer display after just 5 minutes of
00:42charging.
00:43Bringing iPhone Duo to life has involved some of the most complex and innovative engineering we have ever done.
00:51And there is still more to tell you, so let me hand it back.
