HP 255 G4
Yes. 2 slots, up to 8 GB seen working.
It takes DDR3-1333 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR3-1333 204-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines; one machine runs 10 GB
- Firmware says
- 4 GB maximum (often wrong, so we show what machines run)
- How sure
- 18 of 18 reports show this layout
Worked out from 18 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 31 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 17 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the HP 255 G4?
Yes. 2 slots, up to 8 GB seen working. It takes DDR3-1333 laptop-size sticks (SO-DIMM).
What type of RAM does the HP 255 G4 use?
DDR3-1333 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the HP 255 G4 take?
Machines in the reports run up to 8 GB, and one runs 10 GB. The firmware reports a maximum of 4 GB, a figure that is often wrong.
What battery does the HP 255 G4 use?
Batteries in these laptops report 31 Wh, going by 17 reports. Other pack sizes may have shipped, so check the capacity printed on yours.
Is this my laptop?
Check the model name on the label underneath. It should read 255 G4.