User Guide

CCS Technical Documentation System Module and User Interface
NPM-6/6X
Issue 2 06/03 Nokia Corporation. Page 27
Pin numbering of battery pack
BL-4C battery pack pin order
Figure 4: Battery Pack Contents
Signal name Pin number Function
VBAT 1 Positive battery terminal
BSI 2 Battery capacity measurement (fixed resistor inside the battery
pack)
GND 3 Ground/negative/common battery terminal
1 (+) 2(BSI) 3(BTEMP) 4(GND)