iPhone 3G: Talk time- 5 hours on 3G, 10 hours 2G
Standby- Up to 300 hours
internet use- 5 hours 3G, 6 hours wi-fi
Video play back- Up to 7 hours
Audio play back- Up to 24 hours
Talk time- 5 hours 3G, 12 hours 2G
Standby time- Up to 300 hours
Internet use- 5 hours 3G, 9 hours wi-fi
Video play back- Up to 10 hours
Audio play back- Up to 30 hours
Sources: http://www.apple.com/iphone/specs.html
It depends, studies have shown that the 4.2.1 update has sped up not only the device but also battery life. Depending on if you are Jailbroken or not and how many apps you run in the background.
Charge it, with the charger that came with it.
8 hours
The expected battery life for this laptop is about 4 hours.
The battery life for the Dell Inspiron Mini 9 provides over 4 hours of battery life.
According to research, the Energizer brand LED light provides a long battery life. It is also better to use an LED as it does not use as much battery life.
iPhones use ion lithium batteries, along with most phones now, they usually withstand around 400 charges before their ability to charge lessens and lessens.
It's broken or the battery is flat.
There is not exact battery life you can download an app but mostly the battery life depends on what you do with it
The battery life of a mini DV player averages about 2 to 3 hours of filming per full battery charge. It really depends on what you think of as a long battery life for such a small device.
The Canon BP-2L14 has a three hour battery life.
AAA is the size of the battery, there are many types and makes of AAA battery and the shelf life for each is different.