Samsung N640 User Manual Page 100

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100 Specifications
Lithium-Ion Smart Battery
Normal Weight 0.99lb (450g)
Nominal open circuit voltage 11.1 VDC
Capacity, typical 5100 mAhr, 56.6whr
Charging time, approximate, with
computer turned off , typical
3.0 hr
Charging time, approximate, with
computer turned on , typical
5.0 hr
Average battery life, with no power
management enabled
3.0 hr
Ni-MH Dumb Battery
Normal Weight 1.36 lb (620 g)
Nominal open circuit voltage 12.0 VDC
Capacity, typical 4000 mAhr, 48whr
Charging time, approximate, with
computer turned off , typical
2.0 hr
Charging time, approximate, with
computer turned on, typical
4.0 hr
Average battery life, with no power
management enabled
2.5 hr
External AC Adapter
Operating voltage 100-240 VA
Line frequency 50/60 Hz
Input current 1.5 -0.8 A
Output current 3.15 A
Output voltage 19.0 VDC
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