HP 255 G1
Yes. 2 slots, up to 8 GB seen working.
It takes DDR3-1066 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR3-1066 204-pin SO-DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 4 GB maximum (often wrong, so we show what machines run)
- How sure
- 12 of 12 reports show this layout
Worked out from 12 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 48 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 11 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the HP 255 G1?
Yes. 2 slots, up to 8 GB seen working. It takes DDR3-1066 laptop-size sticks (SO-DIMM).
What type of RAM does the HP 255 G1 use?
DDR3-1066 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the HP 255 G1 take?
Machines in the reports run up to 8 GB. The firmware reports a maximum of 4 GB, a figure that is often wrong.
What battery does the HP 255 G1 use?
Batteries in these laptops report 48 Wh, going by 11 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 G1.