Lenovo ThinkPad P14s Gen 4

Type 21HF Laptop, from 2023 5 hardware reports
Memory
Up to 64 GB
8 laptop-size slots
Battery
52 Wh
Reported by the batteries
SSD and charger
Coming next
Checked from separate sources
Upgradable

Yes. 8 slots, up to 64 GB seen working.

It takes LPDDR5-4800 laptop-size sticks (SO-DIMM).

Slots
8 SO-DIMM slots
Type
LPDDR5-4800 SO-DIMM
Most seen working
64 GB in two or more machines
Firmware says
64 GB maximum
How sure
4 of 5 reports show this layout
See 8 GB LPDDR5-4800 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 5 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

8 laptop-size slots
Illustration
Battery

Batteries in these laptops report 52 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 4 battery on AmazonMatch the capacity and part number to the label on your battery.

From 5 battery readings. Sources and method. Updated 9 Nov 2026.

Illustration

Questions

Can I upgrade the RAM in the Lenovo ThinkPad P14s Gen 4?

Yes. 8 slots, up to 64 GB seen working. It takes LPDDR5-4800 laptop-size sticks (SO-DIMM).

What type of RAM does the Lenovo ThinkPad P14s Gen 4 use?

LPDDR5-4800 laptop-size sticks (SO-DIMM).

How much RAM can the Lenovo ThinkPad P14s Gen 4 take?

Machines in the reports run up to 64 GB. That matches the 64 GB maximum the firmware reports.

What battery does the Lenovo ThinkPad P14s Gen 4 use?

Batteries in these laptops report 52 Wh, going by 5 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 P14s Gen 4, and the type code starts with 21HF. Other type codes share this name: 21K5, 21K6.