Lenovo ThinkPad T21 English - 46L4325 - ThinkPad T20, T21User's Reference guid - Page 22
Electrical ac adapter, Lithium-ion battery pack
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Specifications Electrical (ac adapter) Sine-wave input at 50 to 60 Hz Input rating of the ac adapter: 100 to 240 V ac, 50 to 60 Hz Lithium-ion battery pack Nominal voltage: 10.8 V dc Capacity: 3.6 AH 6 IBM ThinkPad T20 User's Reference
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Specifications
Electrical (ac adapter)
±
Sine-wave input at 50 to 60 Hz
±
Input rating of the ac adapter: 100 to 240 V ac, 50 to 60 Hz
Lithium-ion battery pack
±
Nominal voltage: 10.8 V dc
±
Capacity: 3.6 AH
6
IBM ThinkPad T20 User's Reference