Lenovo X220 Tablet User Manual


 
Battery pack
Lithium-ion (Li-Ion) battery pack
Battery life
For percentage of remaining battery power, see the Power Manager Battery Gauge in the task bar.
The Power Manager also displays a green, yellow and red indication. A battery under warranty with a red
indication is eligible for a warranty replacement.
ThinkPad X220 Tabet and X220i Tablet specications
Size
Width: 305.0 mm (12 inch)
Depth: 228.7 mm (9 inch)
Height: 27 to 31.3 mm (1.06 inch to 1.23 inch)
Environment:
Maximum altitude without pressurization: 3048 m (10,000 ft)
Temperature
At altitudes up to 2438 m (8000 ft)
Operating: 5.0°C to 35.0°C (41°F to 95°F)
Non-operating: 5.0°C to 43.0°C (41°F to 109°F)
At altitudes above 2438 m (8000 ft)
Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)
Note: When you charge the battery pack, its temperature must be at least 10 °C (50 °F).
Relative humidity:
Operating: 8% to 80%
Non-operating: 5% to 95%
Heat output
65 W (222 Btu/hr) maximum, or 90 W (307 Btu/hr) maximum, depending on the model
Power source (ac power adapter)
Sine-wave input at 50 to 60 Hz
Input rating of the ac power adapter: 100 to 240 V AC, 50 to 60 Hz
Battery pack
Lithium-ion (Li-Ion) battery pack
Battery life
For percentage of remaining battery power, see the Power Manager Battery Gauge in the task bar.
The Power Manager also displays a green, yellow and red indication. A battery under warranty with a red
indication is eligible for a warranty replacement.
Chapter 1. Product Overview 31