1. Make sure you kill those apps that are running in the background for nothing

   2. Turn off wifi if you’re not using it (Settings > Wi-Fi and set Wi-Fi to Off)

   3. Turn off 3G if you don’t need it (Settings > General > Network and set Enable 3G to Off)

   4. Apple says Push can cause a 20% drop in battery life, but if you think yours is worse then it should be, the next step is to redo anything that involves Push,  or Turn off Push Notifications (Settings > Notifications and set Notifications to Off)

   5. Turn off Bluetooth (Settings > General > Bluetooth and set Bluetooth to Off)

   6. Turn off Push Email (Settings > Mail, Contacts, Calendars > Fetch New Data and set Push to Off)

   7. Fetch new data manually (Settings > Mail, Contacts, Calendars > Fetch New Data and tap Manually)

   8. Go through a full charge cycle each month (charge the battery to 100% and completely run it down)

   9. Turn off vibrate

  10. Auto-adjust Brightness (Settings > Brightness and set Auto-Brightness to On)

全部off了用起来多麻烦呀
★ Sent from iPhone App: i-Reader Huaren Lite 7.39

 
最有效的就是turn off your iphone

iPhone 4S的电池寿命确实有点弱。希望iOS 5.1能够fix。

那个金山电池医生挺好用的，推荐大家去下载，免费的

haha,indeed!!!!