| if u have some external power battery source u can check battery consumption. use an amp meter in series with + or - barrery terminal of
the phone and external power source. check the reading of a working phone
and troublesome phone. and u can find out battery consumption.
for external power u can use sealed lead acid battery with LM317 regulator
to get around 3.7 volts from it or use computer's usb port 5v with a series resistor. |