User Guide

Nokia Customer Care System Module and User Interface
NPL-4/5
Issue 1 05/04 Copyright © 2004 Nokia Corporation. All rights reserved. Page 35
Table 18: BL-5B Characteristics
Table 19: Pin Numbering of Battery Pack
Figure 5: Battery Pack Contacts
Description
V
alue
Nominal discharge cut-off voltage 3.1V
Nominal battery voltage 3.7V
Nominal charging voltage 4.2V
Maximum charger output current 850 mA
Minimum charger output current 200 mA
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/comm
on battery terminal