Each one uses a different battery and it can be confusing since the batteries are internally mounted. There are 2 different internal batteries designed for the Lenovo X1 carbon series. To confirm which battery you have, we advise that you check the battery part numbers printed directly on the battery. The laptop case will need to be opened in order to change the battery. This is a user replaceable task if you have a small phillips head screw driver. There are 7 phillips head screws that need to be removed to pop off the keyboard cover.
The keyboard will come off and expose the battery. The battery has a ribbon cable that inserts into the main circuit board. This ribbon cable will be removed and the wiring harness on your new battery will plug into the motherboard in the same opening. We use the highest quality lithium-ion batteries that charge fast, last longer and weigh less than cheaper, lower quality batteries. This ThinkPad X1 Carbon 14 battery is 100% compatible with the original battery specifications and is individually tested and backed by a 1 Year warranty. Tech Specs Xtend brand; 14.8 Volts; 45 Whr; 8 Cell Li-ion; Samsung (South Korea); Black; Assembled in China; 1 Year Warranty; 30 day full satisfaction guarantee; 300-500 recharge cycles; You can expect about 3 hours to 6 hours of run time with this Lenovo 20A7 battery when new, depending on your energy use.
Replaces these Lenovo X1 carbon Gen 2 14" battery part numbers: 45N1700 45N1701 45N1702 45N1703 Type 20A7 Type 20A8


