Lithium battery charge and discharge cycles later, power will be reduced each time point, after about 400 charge-discharge cycles will be reduced to 80%. Called a charge-discharge cycle is completely full and shining, which means that if you use 20% of electricity is full, once considered to be repeated 5 times charge-discharge cycles.
Because there are chip computing power battery, in order to calibrate month should do a complete re-discharge (ie, use no electricity after fully charged).
Just use apple's official power, will become directly after full power mode, there is no overcharge problem.
Lithium battery charging process is using the fast charge to 80% prior to two hours to complete, after 20% using a trickle charge also two hours. This is normal, do not do anything special.
So conclude, iPhone's battery maintenance is very simple, in addition to matters described then saving attention, calibrated once a month as long as you do, try to use the power connection (such as in an office), there is no other considerations it. What is to prevent overcharge, should always filled (or not filled to regular) should all be misunderstood.
iPhone Battery Tips
iPhone 3G is the most power-hungry, so that the iPhone 3G can use because hardly use 3G, 3G using the consumption function is to play games and wifi internet 2 times more than one day is to call three times.
Turn off push when you do not try to regularly check the network and software functionality.
iPhone 3G Wifi Bluetooth off when not required, one or more functions.
Network looking for very low power consumption, so if 3G signal instability in the region closed 3G capabilities, the phone signal unstable regions can be adjusted to flight mode.
GPS use much power, turn off the GPS function if you do not need.
When you start listening to music equalizer will increase power consumption, you can if you do not shut up.
More article: http://www.aga-jumpstarter.com/theme/use-iphone-battery.html