nu nevisai informacija bet tebunie :)

  a.. Vbat, the positive battery terminal.
  b.. BID or Battery Identification, telling the charger built in the phone 
which kind of battery it is; it is connected to a resistor to GND. 5.6 k? 
value is used for NiMH cells, 74.5 k?(?) is used for Li-ion ones.
  c.. BSI, the thermistor used to sense the battery temperature and shut 
down the charger if the cells are overheating. It is a NTC thermistor (its 
resistance decreases with increasing temperature) connected to GND. Its 
value is about 40-50 k? at room temperature.
  d.. GND, or ground. The negative battery terminal.
dabar liko tik bsi, bdi nebebera.