A smartphone is a mobile phone that offers more advanced computing ability and connectivity than a contemporary basic feature phone. Smartphones and feature phones may be thought of as handheld computers integrated within a mobile telephone, but while most feature phones are able to run applications based on platforms such as Java ME, a smartphone allows the user to install and run more advanced applications based on a specific platform. Smartphones run complete operating system software providing a platform for application developers

Now there are many Smart mobile phones in the market, we differ them by their OS. Such as : Apple iPhone (iOS), Google Android, Windows moblie phone(HTC), Nokia (Symbian) and so on.

Extend the Dell latitude d600 battery life can be critical, especially when you’re on the business trip (as train Air plane or open air) . It is likely to be disappointed when the battery is unexpectedly not long after the charge! Many current mobile phones do not provide a long time discharge battery, Android iPhone, BlackBerry, Palm or othere smart mobile phone! Here are some tips to help you save energy, extend the last time you get from each charge on your phone:

1. Reduce screen brightness. In many situations, we do not need to set brightness of the screen at highest level. Reducing the brightness can save a lot of precious Dell latitude d610 battery juice.
2. Without the good Vibrations. Although we all like to be able to vibrate mode, it should not be stopped! Vibrate mode on the phone uses more power than a basic tone on your mobile phone.
3. Turn off Wi-Fi, Bluetooth and GPS. Keep these services off when you’re not use them, so it does not suck dry the Dell latitude d620 battery unnecessarily.
4. Use a black background. The color white waste much more energy than black, as far as possible in darker colors. You can even Google in black on battery4.us. AMOLED screen phones have the largest screen saver with some black color units with up to 7 times less energy!
5. Check e-mail only you need. Most modern cell phones, e-mail automatically configured for a specific time, or been pushed to the phone. These features can unnecessarily consume Dell latitude d520 battery energy when you walk you want to phone any longer. Simple and easy to deactivate and check their email manually or extension of deadlines for the controls as far as possible from each other.
6. Lower the volume. Only the volume as high as you are when listening to music or videos, stronger, more power is needed draining the Dell latitude d430 battery.
7. Use basic ring music. The more the phone has, the more they will do is do it. Advanced ringtones can sound better, but the phone will die soon!
8. Reduced waiting time display. Starting at the lowest possible waiting time for your phone at the screen after it. Better yet, turn off the screen when you use the phone and not let it turn off automatically after the set time.
9. Turn off the phone. Can be extended in time you are away from your mobile phone or call any, and turn down obviously saves energy to be. You also want to turn it off when you know you are out of reach of a longer period and can not service the network. Many phones use much more energy in search of a network connection when out of range.
10. * Keep the battery cool. Hot Heat is a battery murderer cause poor performance and even cause permanent damage to the Dell vostro 1310 battery! Avoid using the phone in your car on hot summer days.

Above tips just can save some energy when you use smartphone (extend your battery working time). But it can not prolong the battery life, I suggest you buy a extra battery when the battery can not last longer.