TIANQIUDell CMOS Battery
Dell Motherboard CMOS Battery Replacement
Dell desktops & laptops use a CR2032 CMOS cell. We supply the correct CMOS battery factory direct, with bulk and custom label for PC brands.
Dell desktops & laptops use a CR2032 CMOS cell. We manufacture the CR2032 cell ourselves and supply it factory-direct, with bulk pricing and OEM custom label for PC and retail programmes. Cells are produced to the original specification and can ship with your own branding on the cell and on the packaging.
Battery Type
Which CMOS battery does a Dell use?
CR2032 Specifications
| Model | CR2032 |
|---|---|
| Chemistry | Lithium |
| Voltage | 3.0V |
| Diameter | 20mm |
| Thickness | 3.2mm |
| Capacity | 190mAh ~ 255mAh |
| Equivalent to | CR2032 = 5004LC = ECR2032 = KCR2032 = DL2032 |
Capacity: 190mAh ~ 255mAh · Equivalent to CR2032 = 5004LC = ECR2032 = KCR2032 = DL2032. See the full cross-reference table.
Specs for reference — final values per OEM project.
How-To
How to Replace a Dell CMOS Battery
- Turn off the PC and unplug the mains power
- Ground yourself, then open the case to reach the motherboard
- Locate the coin-cell CMOS battery near the chipset or battery slot
- Release the metal clip and remove the old CR2032 cell
- Insert a fresh CR2032 with the + side up and re-seat the clip
- Boot the PC and reset the date and time in the BIOS
Laptop models may keep the CMOS cell on a short connector instead of a clip holder — unplug it gently and reseat the new cell.
CMOS Batteries
Which CMOS battery does my PC brand use?
Every brand on this list takes the same cell: a CR2032. The part number does not change — only where the holder sits and how you get to it. So if you service a mixed fleet, one box of CR2032 covers all of them; what you need per model is the access route below.
| PC brand | CMOS cell | Access route covered in the guide | Open |
|---|---|---|---|
| Dell <span style="font-size:12px;color:var(--ink-3);">(this page)</span> | CR2032 | Holder location and disassembly sequence for Dell boards — the cell itself is unchanged. | you are here |
| HP | CR2032 | Holder location and disassembly sequence for HP boards — the cell itself is unchanged. | HP guide → |
| ASUS | CR2032 | Holder location and disassembly sequence for ASUS boards — the cell itself is unchanged. | ASUS guide → |
| Lenovo | CR2032 | Holder location and disassembly sequence for Lenovo boards — the cell itself is unchanged. | Lenovo guide → |
| MSI | CR2032 | Holder location and disassembly sequence for MSI boards — the cell itself is unchanged. | MSI guide → |
Guide
Choosing a Coin Cell for Your PCB: Holder & LifeA design-side checklist for picking a coin cell: holder clearance, capacity budget, equivalent part numbers and shelf-life data.
FAQ
What do buyers ask about Dell CMOS batteries?
What battery does a Dell motherboard use?
Most Dell desktops and laptops use a CR2032 3V lithium coin cell (20mm, 3.2mm).
How do I replace the CMOS battery on a Dell PC?
Power off and unplug the PC, ground yourself, open the case, locate the coin-cell holder, release the clip, remove the old CR2032, insert a fresh cell, then boot and reset the BIOS clock.
Why does my Dell PC reset the time?
A dead CMOS battery makes the clock reset and BIOS settings drop on boot. Replacing the CR2032 cell fixes it.
How do I buy CR2032 CMOS batteries in bulk?
Factory-direct CR2032 coin cells for motherboards, OEM & PC brand programs. Get a quote today.