This is a brand new Genuine Lenovo 5B10W13975 battery. This 5B10W13975 battery is compatible with the ThinkPad X1 Carbon Gen 9, ThinkPad Carbon Gen 10, ThinkPad X1 Yoga Gen 6 and ThinkPad X1 Yoga Gen 7.

This Lenovo 5B10W13975 battery features the highest quality lithium-ion cells. Li-ion battery technology provides longer run times with less weight. This Lenovo 5B10W13975 battery is 100% compatible with the original battery specifications and is individually tested and backed by a 1 Year warranty.

This 5B10W13975 battery will typically last 5-6 hours on a full charge. You can get even longer battery life by dimming your screen and closing unused programs.