Battery Connector; Battery Interface - Nokia RM-512 Service Manual

RM-512; RM-513; RM-514; RM-515; RM-543
System Module
Signal From
VCHARIN Charger
GND

Battery connector

Signal From
GND Global
VBAT
BSI

Battery interface

• Type: BL-5C/BL-5CA (only for Great China)
• Technology: Li-Ion, 4.2 V charging, 3.1 V cut-off
• Capacity: 1020/700 mAh.
BL-5C/BL-5CA has a 3 pin interface with overcharge / discharge protection (safety circuit) and battery size
indication BSI with an internal resistor. The BSI fixed resistor value indicates type and default capacity of a
battery.
Signal name
GND
Issue 2
To Min Nom
Liteplu 11.1Vp
s eak
7.0 8.4
VRMS VRMS
Table 12 Battery IF
To Min
Batt (-)
Batt (+) 3.1
Liteplus 0
Figure 117 BL-5C/Bl-5CA battery pack contacts
Table 13 Pin numbering of battery pack
Pin number
3
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Max Condi-tion
16.9 Standard
Vpeak
7.9
VRMS
1.0
Apeak
9.2 Fast charger
VRMS
850 mA
GND
Nom Max
5.1
2.78
Negative/common battery
terminal
Note
Vch from Charger
Connector, max 20V
GND from/to Charger
connector
Note
Global GND
Battery Voltage
Analog input, Battery Size
Indicator Resistor, 100
kohm pull up to 2.78V
(VBB1). FDL Init, refer to
flash download.
Function
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