Lenovo ThinkPad T14s Gen 4
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
- 64 GB maximum
- How sure
- 13 of 13 reports show this layout
Worked out from 13 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 13 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Lenovo ThinkPad T14s Gen 4?
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 T14s Gen 4 use?
Batteries in these laptops report 57 Wh, going by 13 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 T14s Gen 4, and the type code starts with 21F8. Other type codes share this name: 21F6.