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Does phone battery use power when phone is off?

When the phone is turned off, the battery provides a trickle of power to maintain the memory in the phone.


What is a phone battery?

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


What is a VTech battery and what is it used for?

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.


Emergency lights how do they work with no power?

Emergency lights usually contain batteries which are kept in a state of charge while the power is on. When power is removed the fitting will detect this and switch on using the internal battery. Emergency light will only run for the life of the battery normally about 3 hours.


How is electrical energy to power a cell phone produce?

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.


Is a SIM card separate from the battery?

Absolutely. The SIM carries the service information for your phone while the battery only provides power to the phone.


Does the cell phone battery on if you turn phone off?

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.


How is an emergency alert system installed in a home?

Emergency alert systems are installed in a home by first picking an area close to the center of the home. Next you will conect the device via splinter to a phone jack. You then install a 9 volt battery and connect to a power supply.


Why don't phone batteries last forever?

Nothing lasts forever. Phone batteries are supplied with a rechargeable battery. This battery has a limited life span. It must be charged to power the phone. As the battery power declines, it discharges the energy contained in the battery. This cycle of charging and recharging the battery for use is not an endless cycle. When purchasing a phone, read the product's battery life. Purchase a battery that has the highest or longest life. This is the best way to make use of your money.


Can a phone charge a computer?

no it cannot charge a computer. a phone battery does not have enough power to charge a computer. maybe it can it the phone battery has a bigger capacity than the computer (which is imposibble)


Why battery life of a pager is better than a cellphone?

Because a pager is just a radio receiver and not a radio transmitter. A cell phone is both a receiver and a transmitter. A receiver uses much less battery power than a transmitter does. And because a pager's disposable alkaline battery holds more power than a cell phone's rechargeable battery.


How do you unfreeze a LG breeze phone?

take the battery out of it then power on again