How To Test A Phone Battery With A Multimeter. It will provide general information about the battery and its condition. If Value on the Multimeter is 1 then the PCB is OK and there is NO Shorting.
We will explain the process with a 9-volt battery for this guide. Since the battery voltage changes as the battery gets depleted trying to use a fixed resistor type load leads to the load current getting smaller as the battery voltage goes down. Test the 5V1A mobile phone charger with 5W power.
4636 after which we will immediately open the service menu in which you will need to go to the Battery Information tab.
Switch the multimeter to the 200m setting and make sure the positive lead is connected to the A port Connect the batterys positive terminal to the resistor then connect the resistor to the positive lead of the multimeter. It will provide general information about the battery and its condition. To really test a battery capacity requires a timed test with a constant current load on the battery. Function and Range Switch.
