Charging Operation; Battery; Charging Circuitry - Nokia 7088 Troubleshooting Manual

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Charging Operation

Battery

Flower uses a Lithium-Ion cell battery with a capacity of 700 mAh. Inside the
battery, there is a resistor connecting between BSI pin and GND pin for battery
ID, MSM reads the BSI pin (via VBATT_ID signal in schematic) to identify the
battery size. Different charging algorithms will be used for different battery sizes.

Charging Circuitry

The PM6610 IC charge control is subject to the charger type and the battery size.
External components are needed for electromagnetic compatibility (EMC), and
transient protection of the input to the base band module. The charger's DC input is
through the dc-jack connector. This mobile terminal supports AC-3, AC-4, DC-4,
AC-5, ACP-12 and AC-1 chargers.
Issue 1 12/2006 © 2006 Nokia Corporation
Figure 12: BL-4B battery pack pin order
Figure 12: Charging Circuitry
Baseband Description and Troubleshooting
Company Confidential
7088 (Flower)
Page 17