CMOS battery with wires attached for old Dell laptop

[Turbonium]

Where does one get these sort of CMOS batteries, short of random sellers on eBay (for Dell Vostro 1400)?

 

[heymrdj]

Either the service manual or the part itself should have an OEM part number. Google the part number and you’ll find plenty of vendors carrying OEM and generic replacements like Notebookparts and Batteries N Accessories. A lot of times I’ve just matched the size of the cheapest one I’ve found from any OEM, they tend to all share the same 2 pin socket. Most of the time it’s just a 3v 2032 in a heat shrink with a sticky adhesive.

 

[Turbonium]

Either the service manual or the part itself should have an OEM part number. Google the part number and you’ll find plenty of vendors carrying OEM and generic replacements like Notebookparts and Batteries N Accessories. A lot of times I’ve just matched the size of the cheapest one I’ve found from any OEM, they tend to all share the same 2 pin socket. Most of the time it’s just a 3v 2032 in a heat shrink with a sticky adhesive.

The CMOS battery "cover" has the following printed on it:

CR2032L
NR433
7 8 8

Seems like the "NR433" is the part number. I'm not sure what the "L" means after the standards CMOS battery type, though.

 

[ch33zw1z]

use the service tag to get your specs on support.hp.com

then open the service manual and / or parts list

go to parts.hp.com to buy it.

 

[Turbonium]

use the service tag to get your specs on support.hp.com

then open the service manual and / or parts list

go to parts.hp.com to buy it.

Thnx, but it's a Dell, not an HP. And I already checked the Dell site.

 

[ch33zw1z]

It's a Dell, not an HP. And I already checked the Dell site.

oh sorry, lol, got my lappy's mixed up.

still the same though. get the part number and look it up.

Computer Replacement Parts & Upgrades | Dell USA

Get free shipping on your orders for all parts and upgrades for your Dell PC. Shop now.

www.dell.com

edit, how old is the laptop?

 

[Turbonium]

oh sorry, lol, got my lappy's mixed up.

still the same though. get the part number and look it up.

Computer Replacement Parts & Upgrades | Dell USA

Get free shipping on your orders for all parts and upgrades for your Dell PC. Shop now.

www.dell.com

edit, how old is the laptop?

It's Dell Canada for me. And it's around 14 years old.

 

[ch33zw1z]

It's Dell Canada for me. And it's around 14 years old.

14 years, yikes. I dunno if you'll have too much luck, but give ole google a try..... "dell vostro 1400 cmos battery". I saw some out there but YMMV

 

[Turbonium]

14 years, yikes. I dunno if you'll have too much luck, but give ole google a try..... "dell vostro 1400 cmos battery". I saw some out there but YMMV

I checked eBay and got at least one result. Better than nothing.

EDIT: And they seller I settled on doesn't ship to Canada because of the pandemic. :/

 

[aigomorla]

I would just verify if the battery if its dead that its not a coin battery with 2 wires taped to each side and heat shrink'd.
Basically im asking that you cut the plastic off gently and see whats inside.

If it is, your probably better off DIYing it, as its probably just that.
I am guessing its a CR2032 or CR2025 with 2 leads soldered on each side, and then thermally shrink wraped.

Which you can easily DIY using electrical tape, and then thermal shrink wrap.

The CMOS battery "cover" has the following printed on it:

CR2032L
NR433
7 8 8

Seems like the "NR433" is the part number. I'm not sure what the "L" means after the standards CMOS battery type, though.

This pretty much almost confirms to me that its going to be a CR2032 with 2 wires soldered to each side... so a DIY solution is most likely your best route.

 

[Turbonium]

I would just verify if the battery if its dead that its not a coin battery with 2 wires taped to each side and heat shrink'd.
Basically im asking that you cut the plastic off gently and see whats inside.

If it is, your probably better off DIYing it, as its probably just that.
I am guessing its a CR2032 or CR2025 with 2 leads soldered on each side, and then thermally shrink wraped.

Which you can easily DIY using electrical tape, and then thermal shrink wrap.



This pretty much almost confirms to me that its going to be a CR2032 with 2 wires soldered to each side... so a DIY solution is most likely your best route.

Would electrical tape and shrinkwrap (PVC?) really be enough to make a reliable connection (no soldering)? If so, I'll try this.

 

[Turbonium]

I'm using some conductive adhesive/glue to "cold-solder" each wire to the appropriate side of the CMOS battery (red to +, black to -).

However, I got a bit of the conductive adhesive pretty much everywhere on and around the battery (thin layers here and there; bit of a mess). Would this cause a short-circuit? I'll restart with a fresh CMOS battery if I have to.

 

[mindless1]

If the conductive adhesive is shorting the positive side to negative, either the battery won't work in this state or will drain quickly. You might take a voltage reading without it hooked up to the laptop, wait a couple days and take another. The voltage should have dropped less than 0.001V in that time period.

It is not that hard to find CR2032 with a connector attached. There's major electronics suppliers like digikey or just something random off amazon or ebay.

CR2032 Laptop Battery for sale | eBay

Get the best deals for CR2032 Laptop Battery at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com

Amazon.com

Amazon.com

Amazon.com

https://www.amazon.com/CMOS-BATTERY-DELL-LATITUDE-PCRepair/dp/B005KOKAJ2

Amazon.com

Amazon.com

Amazon.com

I would not solder wires to a little coin cell, too much chance of rupturing the seal. Instead, I'd cut little pieces of copper clad PCB, solder wires to those on the back side with a via to the side contacting the battery, and solder-plate the PCB battery contact side so it doesn't corrode, then heatshrink that together... OR just use a couple of US dimes, solder the wire to the back and it will conduct plenty good enough for the low draw a CMOS battery sees, no need to solder plate the side in contact with the battery. Just make sure the dime on the negative side stays centered.... OR, just get a normal CR2032 battery holder, like found on most motherboards, solder wires and connector from original battery to that, and cover the whole thing in heatshrink tubing... IF there is enough clearance to do so (there may not be)... or put an extension on the wire and locate the battery further away where there is clearance. The current is so low, any small gauge wire is enough.