A phone that performs many functions at one time is probably going to cause a huge drainage on your battery power. Some of the most basic functions that smart phones can perform are the biggest drainers. WiFi connectivity can take a lot of power out of a cell phone if you constantly leave it on. GPS locators can also suck the power out if it's always on. Most smart phones that have these functions usually have an option to only use these services when they're needed or available to you. You can check if your phone allows this by visiting the settings. Another battery drainer is keeping your phone's display at its brightest. You can save battery power if you lower the display brightness.
One can purchase a cellular battery wherever cell phones are sold, for example Radio Shack. These types of batteries are also available at Batteries 4 Less, 2X Power, Cellular Outfitter, Amazon and The Cell Phone Shop.
When the phone is turned off, the battery provides a trickle of power to maintain the memory in the phone.
Your phone has a battery behind back cover as a power source.
As long as the charger is connected to its power source it will take a small amount of power from that source (even if the phone is not connected to it), regardless of whether it is an AC "wall wart" charger or a cigarette lighter charger (although normally turning the car ignition off turns the cigarette lighter outlet off, so if it drains the car battery the car ignition switch may have a problem). If the phone is connected to the charger it may continue to take extra power even with the phone fully charged (I have a Tracfone that will drain my battery powerpack completely (if not connected to a charger its internal battery drains completely in less than 2 days even if I'm not using it at all -- this phone has something wrong in it). The real issue is now fast the charger is draining the battery. BTW, I am assuming above that you mean an external battery that the charger is connected to, not the internal battery of the cell phone itself (if this is the case I would say the phone is seriously defective as this would normally not be possible).
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.
Concrete walls can interfere with cellular signals, causing your cellphone to increase its power output, reducing the battery life.
Then something is on pulling power from the battery. Check all lights and relays.
you have a short somewhere likely bare wire coming in contact with steel and this drains battery.
almost any cell phone has a rechargeable battery in it. once you plug it into your wall socket the power from your wall socket (generated by your power company through power lines) connect to the phone battery and charges it.
Confirm that nothing is pulling power first. Even with everything off. Next, check the battery to see if it holds it's charge.
Even when a phone is off - it still uses a minute amount of power from the battery. It constantly checks the circuitry to see if the power button has been pressed. Even a fully-charged battery will eventually run down in a phone that's switched off.
Absolutely. The SIM carries the service information for your phone while the battery only provides power to the phone.