I was thinkin why not soldering a battery? What could go wrong?...but no more. Thanks

Must make sure that you're replacing the CMOS battery with the same type of battery. Some use non-rechargeable ones like the CR2032 shown in this video. Others use rechargeable ones like ML1220. You risk damaging either your laptop CMOS charging circuit or causing the replacement battery to leak/explode inside your laptop if you use a non-rechargeable in place of a rechargable battery.

This is probably the best instructional video on KZfaq: concise, informative, easy.

Brilliant tutorial. I successfully replaced the CMOS battery in my HP Pavillion DV2 laptop today following your guide. I think the plastic shrink stuff that I ordered may have been a bit too wide as it didn't shrink wrap like yours did but it still did a good job and the laptop is now happily using the CMOS battery hack.

I can't walk away without echoing the sentiment that this is a flawless instructional video. Thanks for making this.

Just what I was looking for!! Was about to solder too. Mine had a contact attached to the wires already so I made it flat as possible and wrapped the electrical tape tightly around it and seems to be doing the job. I swapped out the original 1620N battery with a 2032. Same voltage, etc just 3 times more MAH. Thanks for posting

Thanks for making this video. You saved me probably $30. I had 3 Intel NUCs that all needed the battery replaced. Luckily the existing batteries had flat metal connectors on the ends of the wires that I was able to pull of the batteries and use to connect to the new batteries. Also, luckily, I already had some aluminum metal tape that would normally be used for sealing duct work (not duct tape, the metal kind). It worked great. I didn't have any heat shrink. I just wrapped it in electrical tape. Hopefully, it doesn't melt and make a mess for the next time I need to replace the batteries. Other than that, was glad I was able to immediately replace the batteries and save some money. Thanks for taking the time to make this video. It was very useful. Also, people were complaining the ones I was going to buy on Amazon sometimes had the wires backwards. I would rather make my own and make sure they are wired correctly. Pretty pathetic quality control that a company would let that happen.

Thanks for the hack. Helped me a lot. I used to solder it a lot with 25W soldering iron and 22 gauge solder reel.

Dude! I was just about to solder the leads on!!! You saved my butt!!!

I'm glad i found your video i did this This evening to get my 8 year old Asus G51jx back to life. Quicker and i didn't have to wait for one to ship.

Was wondering how to go about doing this - and you've shown me. Thanks.

That brought back a memory! When I was about 12 (30 years ago, lol) I briefly connected a button battery to a 6V dc power supply to try and recharge it, and it exploded. I was lucky like you, nothing went near my eyes.

it's currently September 2018. I just discovered I had an old ThinkPad (not Lenovo, IBM!) T30 in storage. with mildew growing on the case because of moisture. I plug it and it boots up to windows XP! well after it gave me the error prompt that date is set incorrectly. opening it up, the CMOS battery is just like what you have in yellow shrink tubing. searched eBay found some but shipping will cost me a lot (I live in the Philippines). found this video and it's EXACTLY what I need to do! Thanks so much from the Philippines!

Wow I literally just asked about this in the previous video and you’re the next one thanks!

Good job. I Actually soldered mine without any explosion but have to do it again because the battery is old, only next time I will try your method.

You are simply awesome, really appreciate your instructions here. You are a saviour

Thanks for the demo Chez - I wondered how you did it on your last video.

Video of excellent quality, congratulations. I took a lot and will try to make the adjustment.

The best tutorial on youtube. Thanks man!

You can remove the wires from the original cmos battery and keep the connector intact. Use the conductive tape and the heat shrink to connect the wire to the new battery and viola, a new cmos battery ready to install.

Hi, thanks for the great simple procedure. I was really thinking about soldering wire onto the CMOS battery!

+yahye abdulaahe It's the same as the CMOS battery. RTC= real time clock

I actually tried to solder the wires to the battery before I saw your video! Lucky there was no explosion, but the battery did get very hot! Thanks for the tutorial, this way is MUCH better and easier :)

Thank you so much for taking all the time and trouble to get resolve this issue....

Esse vídeo é exatamente o que eu estava procurando! Thanks my friend, you help me!

Wish I'd seen this video before I soldered the terminals on my CR2032. I guess I was very lucky because I used a low power soldering iron and very little. solder. Thank you for posting this!

Great tip. That exploding battery was dramatic - an effective warning!

genius as always.. Happy New Year..

Thank you for this video. Seven years later I still found it useful for my Intel Nuc DN2820FYKH computer that had a pigtail on the CMOS battery. Transplanted it to a new battery with some tape and it is up and running again.

thanks for the tip, 7 years later and it's still relevant. what would you recommend using as a sticky pad to adhere it to its oem location?

Thanks Handyman, gonna give you a shout out when I do this hack for my laptop!

OMG i can't believe someone has posted this kind of video..you made my day ty SIRRRR @!@!@!@!@

9 years old still helping them thanks you Sir

Believe it or not hockey tape works even better for this hack than insulation tape. When it dries from the heat generated inside the laptop - it tightens. Insulation tape does the opposite actually. It tends to expand and the glue sloughs off in a huge mess. With hockey tape you don't even need to use heat shrink pocket.

Thanks for the Info, you just saved me from exploding a coin battery

Thanks for the video, do you use a "conductive tape" to connect the cables to the battery right?

Excellent video! I need two of these to be connected in series, for my Pismo G3 Powerbook that i'm trying to revive. Could you please make a video on how that's done?

Thank you for this TIP!!!

Thanks man for preventing me from trying to solder onto the battery... I was already preparing. ;)

Great. Thank you. I'll try that

Thanks, needed the advice. Fixing a friends laptop and keep killing the button batteries (don't know where to get the one I need, but have cr2032's aplenty and keep killing them trying to solder leads on). This will work wonderfully. I don't know why I didn't think of this.

Excellent video, thank you.

Thanks again for this lesson.

I didn't know laptops had batteries in them like that! Thanks for sharing Chez!

Top drawer mate. Thanks for the tutorial.

Thank you, my husband messed up my laptop cmos batt tried harder to solder the new one😀, since my laptop is old no cmos batt available anymore..so here's the video that would help.

That's great. Thanks for showing this easy method. You really Saved me from explosion of soldering CMOS battery. 💥 Boom

you Sire, are a legend, thanks for this. saved my computer thanks to you.

now I'm searching for the 2pin socket for this. BTW thanks for the tutorial. :)

Good idea! Thank you for your help.

saved me a lot of time ordering that crappy cmos battery, thanks Ultimate Handyman!

Nice video mate, there are not that many people out there that I know of that are masters of the building trade and also a dab hand when it comes to computers. It's normally one or the other. Hats off to you!

Also wanted to mention that the original leads are NOT soldered onto the battery in the conventional sense...they are attached with specialized equipment similar to a mini spot-welder.

Wish I had these tools, maybe one day. For now I'll wait on shipping. Thank you for this cool video

Good tip, man. I'll get some shrink wrap or something to get it nice and snug back in there again.

OMG, that was short doing a big mistake! I'm just changing the battery and heating up my soldering station for soldering the battery. Thank you for saving me! It is an old Thinkpad 600e I'm changing the battery. Thanx for the video! Good job! Lupo

Lmao that battery blowing up made me jump,I wasn't expecting that,thanks for your help pal, good video.

Great hack, thanks for sharing!

Great tip! I'm wondering whether you mind to show me the tips to remove broken tiny jolt on laptop. Mine is asus a46 / k46. Thanks mate!

Is it absolutely necessary to use the conductive tape to get the least impedance or would flattening and spreading the wire leads a bit and then using the electrical tape wound tightly be sufficient? I don’t have any conductive tape. What about an aluminum foil tab (no adhesive) then electrical tape?

CMOS battery is the one for resetting your clock time and zone?

Must I use the 2 different types of tape or can I just use electrical tape for both tape types?

Gaffer tape did the job for me!😀

Tnx it worked great with just batery and isolating tape

And where you gonna connect it is in the Usb port or in the motherboard?

Where did you connect it to the Usb port? Or on the motherboard?

Bien mister, sos un grande, me ayudo bastante, graciaas.

Thank you very much for this hack! Subscribed :)

You were just The guy I'm looking for. I have plenty of 2032 but a dead cmos... And now I don't even have to sotter it 🤣 Really useful video I really appreciate you mate

Ah, conductive tape . . . Well, I'm just now seeing this video, and I used electrical tape exclusively, but thankfully it still worked. I guess, as long as you do it in a way where each wire remains exclusively touching on one side of the "coin" (without those wires ever touching each other), you'll get by. Apparently, this CR3025W, is simply a CR3025 with a wire and connector attached to it. I had to replace one of these in an Intel NUC. I'll buy some conductive tape for the next time. Thanks.

NIce hack!!! Thank you!

thank you, very helpful tip

Thank you!! This was PERFECT and saved me $14 usd.

Thank youuu~! This really saved me! You're awesome~

Thank you for your great video Some one gave me 12 years old but mint condition labtop It needed to replaced cmos battery I have no idea until found this clip, Thank a lot 😊😊

Awesome! Thank you so much!!

Thank you so much!

Very useful no-nonsense instructional video. Can I use insulation tape instead of conductive tape?

wowww alrite bro...very intuitive..thanks a lot!

Thank you sir. Picked up a Thinkpad T23 from a boot sale and I can't be doin 5-7 quid for a new CMOS battery.

Heya, The best guide that I have saw was on Volt daddy (i found it on google) Gotta be the most useful info on batteries and this same things that have found.

Awesome vid, thanks it was very helpful :)

Thank you for this video! What size heat shrink tubing should I get? 20mm? 25mm?

great job!!!

My video card is being blocked by my right angle cmos battery lol. Is there any heck to fix this??? I have a cmos battery cavity with some leads and a switch. Is there a way to solder it to the cmos cavity on the mother board. I can run the pc with no cmos battery but I won't be able to use my sata settings. Thanks a bunch. Great vid!!!

Thank you

Great !!!! job!!!

I have a question, can I connect a 3.7v battery to the BIOS?

OMG! You just save me from soldering that kind of battery. Thanks! I have a question though, my laptop has CR1220. Can I change it to a CR2032 since both has 3v?

Is the CMOS battery easily accessible under one of the screwed-in hatches, or is it somewhere else?

What type of connector do they usually use these days for those batteries? Is it something like a 1.5mm or a 2.0mm pitch? I have an ITX Z390 motherboard, and the connector for its battery is located near the rear I/O and it has under a heatsink that covers that area. Gonna be a chore to get at without taking the entire motherboard out...

i used a binder clip but this makes more sense.. thx

Wish I'd seen this a few days ago (I've got an old Lenovo X60 that I'm refurbishing and a ton of new CR2032 batts), but I've already ordered a new CMOS battery. Question for the future though, is the conductive tape necessary? I'm an admitted noob on the hardware end of things. I would have just used electrical tape to hold the leads in place. Would that be a bad thing to do?

Do I need the heat shrink? because I don't have any, could I just use the insulation/electric tape instead?

thank you!

Thanks a lot! Thumbs up!

This is very useful info for me as my PS2's CMOS battery is suspected dead!

save time money effort, thanks to this video!

What is the black pocket kinda bag you put the battery into called?

i desolder CR2032 battery holder from old motherboard but you can buy them pretty cheap on eBay just a tip