Lenovo promises up to 15 hours of battery life on a charge for the ThinkPad X1 Yoga, though that's presumably for the FHD model -- the higher-res models will likely drain the battery more quickly.
The ThinkPad has a 4 cell, 52 Whr battery that's nominally sealed inside ... X1 Carbon faces some serious competition, even within Lenovo's own overlapping lineup where the ThinkPad X1 Yoga and ...
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