Lenovo ThinkPad P14s Gen 1
Type 20S5 Laptop, from 2020 4 hardware reports
Memory
Up to 48 GB
2 laptop-size slots
Battery
50 Wh
Reported by the batteries
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 48 GB seen working.
It takes DDR4-2666 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2666 260-pin SO-DIMM
- Most seen working
- 48 GB; one machine runs 48 GB
- Firmware says
- 32 GB maximum
- How sure
- 4 of 4 reports show this layout
See 16 GB DDR4-2666 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 4 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
2 laptop-size slots
Illustration Battery
Batteries in these laptops report 50 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 P14s Gen 1 battery on AmazonMatch the capacity and part number to the label on your battery.
From 4 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Lenovo ThinkPad P14s Gen 1?
Yes. 2 slots, up to 48 GB seen working. It takes DDR4-2666 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo ThinkPad P14s Gen 1 use?
DDR4-2666 laptop-size sticks (SO-DIMM, 260-pin).
What battery does the Lenovo ThinkPad P14s Gen 1 use?
Batteries in these laptops report 50 Wh, going by 4 reports. Other pack sizes may have shipped, so check the capacity printed on yours.