If you're using a smartphone to surf the web you probably are amazed at how quickly your phone battery drains. You can save yourself some hassle by getting an extended battery pack for many models. It attaches right into the phone, and while it does make the device a little thicker you'll be thanking yourself when you're able to keep talking all day without searching around for an outlet.

the battery

A battery that can be refilled with the energy it has. If it is in a phone, when you charge your phone, you are recharging the battery in your phone.

A VTech battery is a battery that is used for your VTech wireless phone; the battery is basically going to power your phone, and allow you to continue to use the phone when it is not on the base.

Your phone has a battery behind back cover as a power source.