HOW TO CHECK MOBILE PHONE BATTERY VOLTAGE

HOW TO CHECK MOBILE PHONE BATTERY VOLTAGE

A good and working battery voltage is approximately 3.7 volts DC(direct current), below that maximum voltage range the phone will not be able to power on.

Checking the battery voltage by an analog multi-meter is so easy, just set it to a DC range 10volts then attach the both test probes to each corresponding polarity, positive probe to positive terminal, then negative probe to negative battery terminal. Check the maximum battery voltage reading 3.7 volts.

A battery voltage lower than 3.7 volts can power on the handsets but it shows Battery Low on a screen.

A battery voltage lower than 2 to zero volts will hardly charge the phone and won't power up the phone.

A drain battery voltage approximately down to zero volts will not be able to accept charge when a charger is being plug-in. A drain battery will be shock by a a higher voltage range from 6 to 12 volts for a quick charging point as possible to avoid damaging the battery, a DC regulated power supply. is the equipment used to shock a drained battery.just connect both probe to each corresponding polarity for a quicker period of time, prolonging it will damage the battery itself. You may ask an experience technician in your neighborhood about this method for assistance and safety guidelines.

How To Check Battery Of A Cell Phone With Multimeter

Want to know how to check battery of cell phone? With lots of usage of various functions and apps, the battery consumption has become very high in todays smartphones. The usage of battery charge through internet either by data connection (2G or 3G) or WiFi also leads to quicker draining in cell phones. Its easy to test or check the battery with the help of the multimeter. It’s the voltage of the battery that is checked to know how much charged it is. The unit of voltage is Volts and its symbol is V. Although the screen of the phone indicates the charge level of the battery, you will need to check it with multimeter when your handset is dead! The method of checking a battery is the same for all models and manufacturers like iPhone, Samsung, Sony, LG, Nokia, Chinese phones, etc

Steps to check the battery with the multimeter

1. Switch off your cell phone and carefully remove the battery.
2. Now search on the label of the battery for its given voltage. Most batteries of cell phones, digital cameras and tablets are of either 3.7V or 3.8V
3. Place the battery such that its terminals face you.
4. Now keep the multimeter (either analog or digital) on DC Volt setting. It may be indicated with either DCV or just V and a straight line with 3 dots below it. In DCV (DC Voltage) also, there will be many settings like 2mV, 2V, 20V, 200V, 1000V. Keep the setting on the number above the actual voltage of the battery. It will be either 10V or 20V in most multimeters. An indication of ACV or just V followed by a curved line means AC voltage. Do not use this setting as batteries run on DC voltage.
5. Now touch the tip of the red probe of the multimeter on the terminal of the battery named ‘+’and touch the tip of the black probe on the terminal named ‘-‘. (The positive terminal of the battery is indicated by a ‘+’ sign and the negative terminal is indicated by a ‘-‘ sign.).
6. Keep both the probes touched until you see a stable reading on the screen of the meter. If the reading on the screen is more than 3.70 for a battery of 3.7V, then the battery is fully charged. And if it is less, then you will have to charge it with a charger. It should show a reading above the charge of the battery.

If the battery is drained and showing 0 voltage or say less than 3.7, you will have to charge it with a charger. You can also charge it with a DC power supply. If after charging for a long time, still it is showing the same charge, then the battery is faulty. You will need to buy a new one as batteries are not repairable. If the reading of the battery is below 3.70V even after charging it, your mobile phone will not switch on