With a 57Wh battery capacity, the Lenovo X1 Carbon lands within the sweet spot for the high-performance + ultra-light category of laptops. This is just a bit more than the 54Wh found in the X1 YOGA, a much larger computer, and a lot more than the ASUS Zenbook 3 deluxe (46Wh, model UX490UA).

If you want to maximize battery life, we would recommend selecting the 1080p base display version. Higher resolution means more pixels, and higher brightness (HDR) means more power.

The X1 Carbon features Lenovo’s RapidCharge which means that a 60mn charge time will take the battery from 0% to 80%. The charge speed is therefore 0.76Wh per minute or 45.6 Wh per hour of charge. “Wh” which stands for Watt-hours is a unit for energy storage.

Batteries typically charge at a constant speed from 0% to 80%. The charging then slows down considerably from 80% to 100%.

Note that the computer ships with a 65W charger that is RapidCharge compatible. If you buy the smaller 45W charger accessory, you will not get the fast-charging capability.


The Lenovo X1 Carbon was always designed to be the lightest, most compact Lenovo X1 laptop. It is a fantastic ultra-light and ultra-durable business computer for busy professionals who want a care-free computer that can just work even with a brutal travel schedule, or work in the field.


This emphasis on durability, associated with a surprisingly low weight and excellent performance (particularly performance-per-pound) makes the Lenovo X1 carbon a unique choice in the business world. Add to that a generous battery capacity (for this category) and a large 14” display, and you get an excellent product.

The X1 Carbon Gen6 doesn’t take the lead on metrics such as performance/price or battery/price. It is not a value-oriented computer, but a productivity and performance laptop. The Lenogo Yoga 920 or the HP Spectre X360 13t would provide better “bang for the buck” because they are more oriented towards the consumer or creative user profiles, and lack the durability features the X1 Carbon has.

Overall product rating: 9/10

Filed in Computers >Reviews. Read more about Laptop Reviews, Laptops, Lenovo and Lenovo reviews.

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