Tuesday, June 19, 2007

Apple revises specs for the iPhone - Battery life to be longer

Apple revised it's battery estimates for the iPhone on Monday. The new battery estimates are significantly better than the previous battery life. Apple also states the conditions under which the battery life were tested.

The old iPhone battery life at Apple was:

  • Up to 5 hours Talk / Video / Browsing
  • Up to 16 hours Audio playback

New Battery Estimates:
Up to 8 hours Talk Time
Up to 250 hours Standby
Up to 6 hours Internet Use
Up to 7 hours Video Playback
Up to 24 hours Audio playback

Talk Time:
Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. All talk time testing was done connected to a 1900MHz network. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks was turned off. Battery life depends on the cellular network, location, signal strength, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.

Standby:

Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks was turned off. Battery life depends on the cellular network, location, signal strength, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.

Internet over WiFi:
Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. Internet over WiFi testing conducted using a closed network and dedicated web and mail server, simulating browsing to 20 popular URLs and checking mail once an hour. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks and Auto-Brightness were turned off; WPA2 encryption was enabled. Battery life depends on the cellular network, location, signal strength, WiFi connectivity, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary. Internet over EDGE: Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. Internet over EDGE testing conducted over a 1900 MHz EDGE, using a dedicated web and mail server, simulating browsing to 20 popular URLs and checking mail once an hour. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks and Auto-Brightness were turned off. Battery life depends on the cellular network, location, signal strength, EDGE connectivity, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.

Video Playback:
Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. Video content was a repeated 2 hour 23 minute movie purchased from the iTunes Store. All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks and Auto-Brightness were turned off. Battery life depends on the cellular network, location, signal strength, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.

Audio Playback:
Testing conducted by Apple in May and June 2007 using preproduction iPhones and software. The playlist consisted of 358 unique audio tracks, a combination of content imported from CDs using iTunes (128-Kbps AAC encoding) and content purchased from the iTunes Store (128-Kbps AAC encoding). All settings were default except: Call Forwarding was turned on; the WiFi feature Ask to Join Networks was turned off. Battery life depends on the cellular network, location, signal strength, feature configuration, usage, and many other factors. Battery tests are conducted using specific iPhone units; actual results may vary.

So the rumors about the battery life being better than expected turned out to be true.

1 comment:

Dr. Tim Martin said...

Excellent report. Thanks for taking the time to post it on Digg.