Lenovo ThinkPad 13 2nd Gen


Yes. 2 slots, up to 32 GB seen working.
It takes DDR4-2133 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2133 260-pin SO-DIMM
- Most seen working
- 32 GB in two or more machines
- Firmware says
- 32 GB maximum
- How sure
- 26 of 26 reports show this layout
Worked out from 26 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

Batteries in these laptops report 42 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 26 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Lenovo ThinkPad 13 2nd Gen?
Yes. 2 slots, up to 32 GB seen working. It takes DDR4-2133 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo ThinkPad 13 2nd Gen use?
DDR4-2133 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Lenovo ThinkPad 13 2nd Gen take?
Machines in the reports run up to 32 GB. That matches the 32 GB maximum the firmware reports.
What battery does the Lenovo ThinkPad 13 2nd Gen use?
Batteries in these laptops report 42 Wh, going by 26 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 13 2nd Gen, and the type code starts with 20J1. Other type codes share this name: 20J2.