Lenovo ThinkPad S1 Yoga 12
Check before you buy.
Every machine in the reports has exactly 8 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.
- Slots listed
- 2 SO-DIMM slots
- Type
- DDR3-1600 204-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 16 GB maximum (often wrong, so we show what machines run)
- How sure
- 9 of 9 reports show this layout
Worked out from 9 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 47 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 9 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Lenovo ThinkPad S1 Yoga 12?
Check before you buy. Every machine in the reports has exactly 8 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.
What type of RAM does the Lenovo ThinkPad S1 Yoga 12 use?
DDR3-1600 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the Lenovo ThinkPad S1 Yoga 12 take?
Machines in the reports run up to 8 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.
What battery does the Lenovo ThinkPad S1 Yoga 12 use?
Batteries in these laptops report 47 Wh, going by 9 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 S1 Yoga 12, and the type code starts with 20DK. Other type codes share this name: 20DL.