Only For Training And Service Purposes - LG GM200 Service Manual

3. TECHNICAL BRIEF
3.2.5. Charging
GM200 charge the battery using an external charging IC of Intersil ISL9221 for Li-Ion battery in 4.2 Volts
level.
1. Charging method : CC-CV
2. Charger detect voltage : 4.0 V
3. Charging time : < 3h
4. Charging current : 650 mA
5. CV voltage : 4.2 V
6. Cutoff current : 97 mA
7. Full charge indication current (icon stop current) : 97mA
8. Recharge voltage : 4.15 V
9. Low battery alarm
a. Idle : 3.54V ± 0.05V
b. Dedicated :3.54 V ± 0.05V
10. Low battery alarm interval
a. Idle : 3 min
b. Dedicated : 1 min
11. Switch-off voltage : 3.33 V
12. Charging temperature adc range
a. ~ -5℃ : low charging voltage operation (3.6 V ~ 3.9 V) .
b. -5℃ ~ 50℃ : standard charging (up to 4.2 V)
c. 50℃~ : low charging voltage operation (3.6V ~ 3.9V)
LGE Internal Use Only
LGE Internal Use Only
3.75 ± 0.05V
3.54 ± 0.05V
3.33 ± 0.05V
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Only for training and service purposes