Lenovo ThinkPad X1 Carbon Series. Lenovo ThinkPad X1 Carbon (3444). Lenovo ThinkPad X1 Carbon (3448). Lenovo ThinkPad X1 Carbon (3460). 1.Li-Ion Laptop Battery 10.8V and 11.1V are in common use. 2.Li-Ion Laptop Battery 14.4V and 14.8V are in common use.
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