Lenovo ThinkPad X1C 5th W10DG
No. The memory is soldered to the board.
8 GB is built in and there is no slot to add more.
- Free slots
- None
- Type
- LPDDR3-1866
- Soldered
- 8 GB
- Firmware says
- 8 GB maximum
- How sure
- 4 of 4 reports show this layout
Worked out from 4 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 57 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.
From 4 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Lenovo ThinkPad X1C 5th W10DG?
No. The memory is soldered to the board. 8 GB is built in and there is no slot to add more.
What type of RAM does the Lenovo ThinkPad X1C 5th W10DG use?
LPDDR3-1866 memory soldered to the board.
How much RAM can the Lenovo ThinkPad X1C 5th W10DG take?
Machines in the reports run up to 8 GB. That matches the 8 GB maximum the firmware reports.
What battery does the Lenovo ThinkPad X1C 5th W10DG use?
Batteries in these laptops report 57 Wh, going by 4 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 X1C 5th W10DG, and the type code starts with 20K3. Other type codes share this name: 20K4.