We can't answer that unless we know your PC Model number.
Many PC's use a CR2032 but without your PC model number we can't say for sure.
Look at the existing battery and see what the battery type is.
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Dell Inspiron 15 - 5577 Laptop
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I'm away from my computer this week-end but here are my pc specs:
Dell-Dimension 8300 Series
Date of Birth September 9, 2003
Chipset PCI Intel I875P at 533 MHz (support processor with bus system at 800 MHz)
BIOS Version: A7
Memory DDRSDRAM Dual Channel
BUS AGP 8x, 8 USB 2.0, 4 PCI
10/100 Pro Ethernet (RJ 45 only)
Windows XP Home SP3 (build 2600)
Intel Pentium 4 at 3.2 GHz, bus system at 800 MHz
2048 Mo DDR SDRAM (4 x 512)
Floppy Drive 3.5"/1.44 Mo
240Go Serial ATA RAID 0 Stripe (2 hard disks x 120 GB 7700rpm with DataBurstTM cache)
Dell Monitor 18" 1800FP Flat Ultrasharp (DVI)
Video Card ATI Radeon 9800 Pro 128 Mo DDR (exit TV support DVI and Dual Display)
Burner DVD + RW 4x/CDRW (12x/10x/32x) and Player DVD ROM 16x with decoder software MPEG 2 (2 players 2bays 5"1:4)
Sound Card Sound Blaster Audigny 2 (Port IEEE 1394 included)
Creative Inspire TS 7900
Modem Card (DATA/FAX) 56kbps V92
The Dell specs for your system don't list the type of battery, but here is how to install it.
<ADMIN NOTE: Broken link has been removed from this post by Dell>
It is a button type battery, and you can just look at the number on it and buy a replacement.
Mis Dos Centavos,
Gadfly at large
Helping Dell Customers here since 1998
My systems ...
Dimension XPS D266 - Now retired
Toshiba Tecra M1
Dimension 4300 - Received DOA as a gift. Reinstalled XP and still working great
Dimension 9150 - Pent D 3.2GHz, 4GB dual-channel 533 DDR2 Windows 7 Pro, Firefox 3.6.14
Congrats to Jimmie Johnson #48 - FIVE time Nascar Sprint Cup Champ !!!!
Regardless of the type, buy a premium make.
A premium CR2032 (for example) will often cost three times what you'd pay for a cheap make, and although I've found that it is most cost effective in most uses to buy cheaper button cells than premium, in the case of your PC you don't want to have to replace the CMOS battery again soon.
The cheaper cells ones definitely do not last as long, are more prone to failure, and have shorter shelf lives. Those risks usually don't matter in a child's toy, a doorbell, or a remote control, but in a PC things are a bit different.
I just replaced the 3-V CR2032 lithium coin cell CMOS battery on my Dimension 8300.
Dell's battery-installation instructions are _not_ so very good -- Step 8 & the pic, in particular:
It's physically impossible to remove the battery by "prying it out of its socket" (with or without fingers).
The trick is pretty simple -- at least, for an 8300:
1. Look at the battery housing very closely. On one side, you'll see a metal clip. This clip is spring loaded.
2. Using a very small tool (and a magnifying glass), gently push the metal clip away from the battery.
The old battery will pop loose. Take it away. Put in the new battery as instructed. It'll seat with a gentle push.
n y c
N.B.: When you replace the battery, take the time to clean the dust from inside and on your machine if it's been a while.
Wish I'd read your post before I broke off two prongs holding the cmos battery in its socket, this was an old Optiplex 260 that wouldn't boot up, I thought it might be the cmos battery and tried to replace battery but broke two of the prongs that hold it in. I guess I need to replace the battery socket. Are there directions for doing that, and if so where would I find them? Or is this something that has to be done by a repair tech? This Optiplex has a gigabyte of ram and a 2.6 GHz processor, and I've already bought a replacement HD. Also, is it possible to run this computer without a cmos battery? Thanks, LH
Unless you are prepare to remove/de-solder the broken battery socket and solder a replacement on the motherboard, otherwise you would need to replace the motherboard.
You can buy the replacement battery Socket from here