This is a brand new Lenovo ThinkPad X1 Carbon battery for the 14 inch X1 Carbon 2nd Generation laptops. There are currently 3 generations of X1 laptops. This internal battery is used on all laptops that begin with type 20A7 or 20A8.

This Carbon X1 2nd gen battery was originally announced on Jan 7, 2014. You can find your "battery type number" on the bottom of your laptop. The type number will precede your laptop's serial number which is abbreviated as S/N. There are three different batteries used inside the three Lenovo X1 models that Lenovo has released. 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.

You can expect about 3 hours to 6 hours of run time with this 45N1701 battery when new, depending on your energy use.

This battery replaces the for Lenovo ThinkPad X1 Carbon 14" screen Gen 2 battery.