LG MG810c Service Manual page 43

4. TROUBLE SHOOTING
B. Charging Trouble Shooting
• Charging method : CC-CV
• Charger Detection Voltage : over 4.0V
• Charging Time : About 2Hours
• Charging Current : 550mA
• Cut-off Current : 80mA
• Low Battery Alarm
- Talk mode : 3.62V
- Standby mode : 3.50V
• Switch-Off Voltage
• Charging Temperature ADC Range
- ~ -20˚C : No Charging operation
- -20˚C ~ 60˚C : Charging
- 60˚C ~ : No Charging operation
* STB : Standby mode ( When talk mode, the battery icon starts blinking below 3.62V level)
• Charging Procedure
- Connecting TA & Charger Detection
- Control the charging Current by CHARGER_IC
- Charging Current flow into the Battery
• Check Points
- Connection of TA
- Battery
- Charger IC
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