Lenovo ThinkPad X1 Carbon 2nd

Type 20A8 Laptop, from 2014 18 hardware reports
Memory
Soldered
No slot to add more
Battery
45 Wh
Reported by the batteries
SSD and charger
Coming next
Checked from separate sources
Not upgradable

No. The memory is soldered to the board.

All of the memory is built in and there is no slot to add more.

Slots
None
Firmware says
16 GB maximum
How sure
18 of 18 reports show this layout

Worked out from 18 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

All soldered
Illustration
Battery

Batteries in these laptops report 45 Wh.

That is the design capacity the batteries themselves report, and the label can read 1 to 3 Wh higher. Other pack sizes may have shipped, so check the capacity printed on yours before you order.

Lenovo ThinkPad X1 Carbon 2nd battery on AmazonMatch the capacity and part number to the label on your battery.

From 18 battery readings. Sources and method. Updated 9 Nov 2026.

Illustration

Questions

Can I upgrade the RAM in the Lenovo ThinkPad X1 Carbon 2nd?

No. The memory is soldered to the board. All of the memory is built in and there is no slot to add more.

What battery does the Lenovo ThinkPad X1 Carbon 2nd use?

Batteries in these laptops report 45 Wh, going by 18 reports. Other pack sizes may have shipped, so check the capacity printed on yours.

Is this my laptop?

Check the label on the bottom. It should say ThinkPad X1 Carbon 2nd, and the type code starts with 20A8. Other type codes share this name: 20A7.

More in the Lenovo ThinkPad