Dell Inspiron 5566
Yes. 2 slots, up to 16 GB seen working.
It takes DDR4-2133 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2133 260-pin SO-DIMM
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 16 GB maximum
- How sure
- 37 of 37 reports show this layout
Worked out from 37 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
Batteries in these laptops report 37 Wh or 41 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 35 battery readings. Sources and method. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Dell Inspiron 5566?
Yes. 2 slots, up to 16 GB seen working. It takes DDR4-2133 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Inspiron 5566 use?
DDR4-2133 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell Inspiron 5566 take?
Machines in the reports run up to 16 GB. That matches the 16 GB maximum the firmware reports.
What battery does the Dell Inspiron 5566 use?
Batteries in these laptops report 37 Wh or 41 Wh, going by 35 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 Inspiron 5566.