Lenovo ThinkPad X1 Carbon Gen 12 CAT4 User Manual page 46

Operating environment
Maximum altitude (without pressurization)
3048 m (10 000 ft)
Temperature
• Operating: 5°C to 35°C (41°F to 95°F)
• Storage and transportation in original shipping packaging: -20°C to 60°C (-4°F to 140°F)
• Storage without packaging: 5°C to 43°C (41°F to 109°F)
Note: When you charge the battery, its temperature must be no lower than 10°C (50°F).
Relative humidity
• Operating: 8% to 95% at wet-bulb temperature 23°C (73°F)
• Storage and transportation: 5% to 95% at wet-bulb temperature 27°C (81°F)
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ThinkPad X1 Carbon Gen 12 Linux User Guide