CMOS battery hack | Laptop CMOS battery

[@1984juant]

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

[@drewwesley9506]

Funny!

[@Synthematix]

Solder wont stick anyway

[@ntstudio28]

Just use gum

[@conceptrat]

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.

[@ultimatehandyman]

👍

[@naufalkharits]

are all types of CR-2032 non-rechargeable?

[@williamli4422]

@@naufalkharits yes, only ml2032 are rechargeable

[@weishi5286]

@@williamli4422ML1220

[@betablockrr]

I know this was some time ago, but actually this is not correct. Laptops us CR2032 Lithium batteries and not ML rechargeables. Also most rechargeable batteries cant reach the needed voltage or die much quicker. The CMOS system uses such little power a rechargeable isn't needed. So as long as your laptops one was CR2032 and you replace with the same you're all good

[@danielbessonov1635]

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

[@ultimatehandyman]

Thanks for the comment 👍

[@moss8448]

even tho it may have gray whiskers it is still relevant

[@keithcrawford6310]

Hey could u make a video stacking these positive to negative with no separation. Wrapped in tape. More power. Small pack

[@gimmietheprize]

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.

[@ultimatehandyman]

I'm glad the video helped Thanks for the comment 👍

[@frankmc4294]

Good heatshrink wrap shrinks by about 1/3rd .. don't overheat though with that battery inside. Will have a similar effect to putting the hot soldering iron it, and there is no easy way for the heat to dissipate.

[@InNominePraxis]

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

[@savatagedude]

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

[@idmhead0160]

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.

[@ultimatehandyman]

I'm glad the video helped 👍

[@frankmc4294]

Obviously you have never used electrical tape to wrap something then returned again later only to find that it sweated to become a sticky mess and it had also moved around due to the sweating. It's the last type of tape I would ever use!

[@abetter5]

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.

[@ultimatehandyman]

👍

[@buddywebster4831]

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

[@ultimatehandyman]

I'm glad the video helped ;-) Thanks for the comment 👍

[@ultimatehandyman]

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

[@BroncosoftGames]

***** You are my new hero ha ha >_

[@ultimatehandyman]

Broncosoft Ha Ha ;-)

[@thingshappen9199]

Hey, that's amazing. So can i use any this one any type of laptop even if it's a different shape battery?

[@jdeleca]

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

[@ultimatehandyman]

Yes, I used copper tape. It is widely available. Then I covered the whole battery in insulated tape.

[@Petertronic]

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.

[@ultimatehandyman]

It's amazing the size of the explosion from such a small battery! I'm glad that you were also lucky ;-) Thanks for the comment

[@michaelszczys8316]

I have recharged batteries like this a little, just to see if something still worked. You have to keep the charging supply small, just a little higher voltage. These batteries are made to be charged but not real fast. Hook it up to a couple AA batteries

[@pavelow36]

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!

[@ultimatehandyman]

I'm glad the video has helped Thanks for the comment 👍

[@TheHallucinati]

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.

[@AngelLaHash]

+TheHallucinati ill have to have a look at "Ice Hockey" Tape one time.. for a Conductor tape, i use Copper Slug Tape.

[@ShinobiYourHomie]

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?

[@ultimatehandyman]

You can buy small double sided sticky pads to hold it in place, they are widely available- fave.co/2VTPGxN Thanks for the comment 👍

[@phreaktor]

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?

[@ultimatehandyman]

Don't worry too much about the conductive tape, it will be fine without it. That was just a belt and braces approach. Thanks for the comment 👍

[@MA-rj1wf]

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 :)

[@ultimatehandyman]

I'm glad you were lucky ;-) Thanks for the comment 👍

[@lettersquash]

Yep, just did the same - even after seeing the thumbnail for this video and thinking I knew enough - the solder didn't stick to the battery surface, and by then the battery was very hot, probably ruined, but cheap, and it didn't explode - so I came back to see how it's done.

[@НиколаГеоргиев-ш2б]

Mine exploded with a bang!

[@gaurd4]

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.

[@ultimatehandyman]

I'm glad the video has helped you ;-) Thanks for the comment

[@ronaldoago-go5907]

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.

[@ultimatehandyman]

Aldo Zuko Thanks, I asked in the local computer shop and he said they sometimes solder the leads onto batteries. I hope they watch this ;-)

[@tysontyson1244]

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.

[@ultimatehandyman]

I'm glad the video helped ;-) Thanks for the comment

[@RonAblang]

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

[@ultimatehandyman]

It will probably work with just the insulation tape, the conductive tape is just to guarantee a good contact between the wire and battery.

[@Skanoza]

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?

[@Nord72]

Welcome! I have a Lombard, but its PRAM and I think its rechargable, so do we need rechargable cells even I guess. I'm trying to find it, I will let you know if I solve it.

[@Nord72]

Anyway if you disconnect it from the motherboard the system boots normally, no need for OF kickstart.

[@kribbathome]

Best method is to spot weld, like they do on these from the beginning. It's possible normally to just rip off the old weld without rupturing the nickel strip. Just be careful to not short the battery, like you did when you tried to weld it. Using a little bit of electric insulating tape is all needed.

[@ultimatehandyman]

👍

[@Nord72]

what about a rechargable PRAM battery backup, is it working with CR2032 cells as well ?

[@ultimatehandyman]

I'm not sure about that 🤔 Thanks for the comment

[@mariannepompa4152]

No, they explode after a while

[@Moleknaz]

hey, thanks for the tip. can you tell me what kind of tape that you use to stick the cable? thankyou :)

[@ultimatehandyman]

You are welcome. I used insulation tape.

[@ronaldoago-go5907]

I simply peeled the tabs off the dead battery, taped them to the new battery with conductive tape, wrapped in electrician's tape and good to go. Thanks for the Tut & yeah people, NO SOLDERING ON BATTERIES!

[@kennytzz4073]

can i know what is the thing u added at the end (around 2:10) ? the black colour cover #

[@ultimatehandyman]

Heat shrink sleeving- kzbin.info/www/bejne/e5LIcqiia9Z2rtk

[@skymarshal9152]

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

[@ultimatehandyman]

You are welcome Thanks for the comment 👍

[@syncrossus]

I actually would like to know if you could do it the other way around. I have a good offer for one with the connector and want to know if I can just strip everything from it and be left with a regular button battery

[@ShrihariPandula]

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

[@ultimatehandyman]

Yes, absolutely Thanks for the comment 👍

[@jamiemcglynn6600]

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...

[@ultimatehandyman]

I'm not sure. I did buy some, but can't find them! Thanks for the comment 👍

[@litopadua1356]

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.

[@KhalixPlays07]

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

[@JUSTONELOOK]

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

[@ultimatehandyman]

You are welcome. I can't remember which size I got but from what I can remember it was inexpensive, so perhaps get a short length of both to be on the safe side. Thanks for the comment

[@JUSTONELOOK]

I got the 20mm one and it looks like it's going to work. Thank you for your reply!

[@CyberSunGames]

Good morning friend. What are the materials you use in the video? Mostly what you use after the electrical tape.

[@ultimatehandyman]

Good morning ;-) 1. The correct type of CMOS battery for your computer 2. Conductive tape 3. Insulation tape 4. Heat shrink sleeving You can see a video of heat shrink sleeving here- kzbin.info/www/bejne/e5LIcqiia9Z2rtk

[@CyberSunGames]

Thank you friend, enjoyed the video, and I'm very thankful for your quick and comprehensive response.

[@ultimatehandyman]

Cyber Sun Games You are welcome ;-)

[@aerodriguez1254]

Great Video. Should copper tape be double sided? How thick? 1.0, 1.4, 3 mil 5 mil 10 mil? Can we get links to the copper and insulated tapes you used in the video?

[@ultimatehandyman]

Copper tape- fave.co/2vR4Mtf Insulation tape- fave.co/381GkDz Thanks for the comment 👍

[@KhalixPlays07]

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

[@Erdy007]

would the isolationTape/electrical Tape do the same as the shrinking sleeve or what is this sleeve for? ty in advance

[@ultimatehandyman]

Yes, it will be fine 👍

[@MarkTheMorose]

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

[@ultimatehandyman]

+MarkTheMorose It was dramatic for me when the contents stuck to my forehead LOL Thanks for the comment

[@nick-kf9qt]

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!

[@ultimatehandyman]

+Nicholas T. A small screw extractor might work, but removing small bolts can be very difficult!

[@raydeen2k]

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?

[@ultimatehandyman]

The electrical tape should be fine. I only used conductive tape as I had a lot of it ;-) Thanks for the comment

[@mussim2919]

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

[@MuhammedhRayazMuthalif]

If the laptop manual says it uses a CR1620.. are all CR1620 non-rechargeable? In my case its a lenovo laptop and its an old one. finding the parts is difficult, so you hack would be might useful.

[@ultimatehandyman]

I'm not sure about that, sorry!

[@yadrak2354]

@Ultimate Handyman I have an older 2009-ish model Dell Alienware M17x with dual 5780 ATI cards. I took the CMOS batter out and tried replacing it with a new one I bought online however I couldn't get the plug to go back in. Is it possible I broke something. It seems like the plug is too big to fit and I'm unable to force it. I wish I'd saw you're tip sooner I then could maybe have just unwrapped the old battery and replaced it with a new one while keeping the same plug. Really frustrating not having a BIOS that remembers its settings. Thank-you for the helpful tip. Also would you be able to show how to attach the leads into a new plug?

[@ultimatehandyman]

Perhaps the plug is the incorrect type (I think you can get different sizes) Might be worth getting a magnifying glass, to inspect the pins, to ensure they are not damaged 👍

[@vladislavkaras491]

Huh... I did not know that it was so easy to convert usual CMOS battery to "laptop cmos battery". Thanks for the video!

[@ultimatehandyman]

You are welcome Thanks for the comment 👍

[@michaelbodi890]

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!!!

[@syedibrahim8659]

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

[@ultimatehandyman]

+Syed Ibrahim You are welcome Thanks for the comment

[@bardos]

great video, thx. Why do you think some laptops use this type instead of the normal 2032 which is so easy to replace?

[@ultimatehandyman]

I'm not sure to be honest. These would be a great idea, if the battery was easily accessible. Thanks for the comment 👍

[@netnema]

Did you try using replacement battery without that black sleeve, just with extra layer or two of electrical tape? This is merely a practical question: I don't have a heating gun, and don't want to spend $30 just to replace a $1 battery. ) Thanks!

[@ultimatehandyman]

It will be fine, if you just use the insulation tape 👍

[@netnema]

@@ultimatehandyman Perfect, thanks!

[@IzumiKai18]

May i ask again ? What did u use again tape ? I didnt catch what did u say there bro, thanks man!

[@ultimatehandyman]

Insulation tape, it's what electricians use to insulate wires- fave.co/3w610X1 Thanks for the comment 👍

[@davidsolis7267]

What kind of insulation tape you put on to attach the negative and the positive ? Thank you .

[@ultimatehandyman]

David Solis I used conductive tape first to hold the wires to each side of the battery, then just normal insulation tape. Thanks for the comment

[@imark7777777]

***** insulation tape, otherwise known as electrical tape. however avoid the cheap stuff as the glue will get sticky, whereas the better quality stuff doesn't get as sticky or de-laminate.

[@lupo631]

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

[@ultimatehandyman]

I’m glad the video helped Thanks for the comment

[@lupo631]

@@ultimatehandyman You're welcome!

[@lupo631]

One hint after replacing the new battery in place: Check the thickness! In my case the shrinking insulation hose was too much. So it didn't fit into the battery bay. The insulation tape was the maximum I can wrap the battery around otherwise it will not fit. Lupo

[@ferrxs]

This tutorial is great. I have been struggling to find the right replacement battery with the right connector. Before I try this method, does someone know if the conductive tape is essential?

[@ultimatehandyman]

You can get away without using the conductive tape 😉 Thanks for the comment 👍

[@NicCrimson]

@@ultimatehandyman Do you know what kind of connector it is and what household items have it?

[@ultimatehandyman]

@@NicCrimson I think they are called JST connectors- fave.co/3krDCOb Small electrical devices that contain batteries often use them (as well as other small electrical items)

[@NicCrimson]

@@ultimatehandyman Thank you so much

[@udo9999]

@@ultimatehandyman thanks! Also helpful for me, years later :-)

[@AemVR]

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

[@ultimatehandyman]

No, insulation tape will be fine ;-)

[@ivan77yovev89]

guys i need help!! whats the name of that little plug i have to buy one because the little wires that are atached to it are removed

[@ultimatehandyman]

I'm not sure, but hopefully someone else will answer

[@robertgrande4512]

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!

[@ultimatehandyman]

You are welcome, I'm glad you soldered it without an incident Thanks for the comment 👍

[@margyjr]

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

[@ultimatehandyman]

Thanks for the comment

[@MrTdyshin]

Is there any way to shrink the heat shrink sleeving without a heat gun or a soldering gun? Could a hair dryer work?

[@ultimatehandyman]

Yes, an hair dryer will be fine ;-) Thanks for the comment

[@julieb4523]

Ok, so I don't have wires nor do I have,insulation tape nor,do i even know were to buy them! An can't solder...However, I do have electrical type! If I wrap the battery with it.. Could this work, ? I'm ready to scream! After taking this thing apart to find that because of one little piece breaking while taken the battery out! I CAN'T BELIEVE THAT it's this hard just to make the battery stay in! I'm two seconds from useing Guerilla Glue! Lol please,,,,,, someone help! I need advice!

[@ultimatehandyman]

Yes, taping the wires to the battery should work, perhaps put a small piece of aluminium foil over the conductive part of the wire before taping it on.

[@julieb4523]

Ultimate Handyman! Lol There are know wires! Thought this was going to be an easy task just for resetting bio password setting everything back to factory settings.. however ,it's becoming a nightmare an there's no going back lol I'm stuck with a green broad smh...however please help it's a N4110model all I want is for the battery to stay in the holder without popping back out! Lol thanks so much !

[@heesanbahri3860]

thanks....I was thinking if I couldn't done this but I don't have the copper tape thing

[@glembaj]

good job man, thanks very much. I have a question tho, I have disassembled my lenovo carbon and i found inside Mitsubishi cr2016e 3v battery. Now this "e" letter bugs me but I cant find this particular battery anywhere on a web, and now I am wondering is it a rechargeable lithium battery or not rechargeable??? Sounds logical question i hope. :)

[@ultimatehandyman]

I'm not sure what the e stands for. I don't suppose it says in the manual? Thanks for the comment 👍

[@glembaj]

Ultimate Handyman still I don't know is it rechargeable or not, couldn't find anywhere info about that? Should I put non rechargeable Li/MnO2 inside than?

[@nozge7091]

The best tutorial on youtube. Thanks man!

[@ultimatehandyman]

Glad it helped 👍

[@Inevitable-vl6ok]

9 years old still helping them thanks you Sir

[@ultimatehandyman]

You are welcome Thanks for the comment 👍

[@genericdude6551]

What about the connectorized end that attaches to the mainboard?

[@ultimatehandyman]

I think they are crimped on in the factory 👍

[@xamtra]

I thought to solder too but your video saved me. Instead I'm planning to use hotgun to solder, What is your thought?

[@ultimatehandyman]

I would not use any type of solder- just use some tape ;-) Thanks for the comment 👍

[@kayl9382]

I have an old toshiba tecra a9 that needs a new cmos. This one looks like a peanut. It's got 2 CR batteries. Can I use the same trick with 2 batteries? Also what spec wires should I use? Or should I cut the original ones wires?

[@ultimatehandyman]

Yes, I do not see why not. I'd use the original wires, it's much easier ;-)

[@kayl9382]

@@ultimatehandyman yes that makes sense now 😅 Is there anything different I must do with a double battery cmos?

[@armandodestito9042]

hi guys and hi handyman, well done! a question for you: my acer l3600 has a cmos battery wrapped like yours but it's connected to three wires (red, black in the middle and white)...why? and how should I connect the wires? tks 4 your videos ;)

[@ultimatehandyman]

I'm not sure about that, I have only ever seen them with two wires 🤔 Thanks for the comment 👍

[@armandodestito9042]

@@ultimatehandymantake a look on eBay or Amazon, or similar, if you want. I think that the 3rd wire is for the charging feedback of device. Bye

[@d3vilman69]

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

[@ultimatehandyman]

You are welcome Thanks for the comment 👍

[@fredthemagnificent]

me too, thanks Handyman for the great advice.

[@divyarawat3155]

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

[@ultimatehandyman]

I think you mean the heat shrink sleeving- kzbin.info/www/bejne/e5LIcqiia9Z2rtk

[@375GTB]

I've seen good CMOS batteries in ThinkPads from the 2004R51s on.. Probably the 2003 R50s... No longer used by Apple Computer, by then, apparently.. White MacBooks, MBP's Some CMOS batteries appear to recharge. Any ideas on that? J.C.

[@ultimatehandyman]

I'm not sure to be honest although I have heard that you can get rechargeable CMOS batteries Thanks for the comment

[@emmypuss4533]

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

[@B.E.H.]

Friend, what is the name of this tape (conductive) you put in both sides (positive / negative), please? If possible some link of product, God bless you for help!!!

[@ultimatehandyman]

It’s just known as conductive tape, but might have other names too. Example here- bit.ly/3FKZ5hQ 👍

[@B.E.H.]

@@ultimatehandyman Thanks friend

[@njtexit8]

You don't need conductive tape. I used foil tape which is very sticky and it worked fine.

[@medonk12rs]

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

[@ultimatehandyman]

You are welcome Thanks for the comment 👍

[@phreaktor]

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

[@ultimatehandyman]

👍

[@RonAblang]

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

[@ultimatehandyman]

Ron Ablang It depends on the make and model of the laptop. In this Acer Aspire you have to almost strip it down to it's component parts- Acer Aspire CMOS battery | Acer Aspire losing date This Sony was much easier- laptop cmos battery

[@slybunda]

thanks for this its gonna save me a lot of time and money

[@ultimatehandyman]

👍

[@FelipeN007]

Where do you get the positive and negative wiring from?

[@ultimatehandyman]

The battery. It has a positive lead *+* (red) and a negative lead *-* (black)

[@samirgunic]

It seems like history is repeating itself. Both of these ideas crossed my mind: soldering the wires onto the battery directly, or wrapping the wires in place with insulation tape and then adding a heat shrink for good measure. The latter seemed most convenient as I don't like to solder. But wow! Good thing I found your video and saw what can happen if you try to solder onto a battery. So not only is taping it together more convenient, it's also the secure way to do it. Short of only doing it professionally with a spot welder, like they do in the factory. But why use a copper tape I wonder? I have never used one before. Is the adhesive conductive on this type of tape? I could not find a definitive answer to this fairly simple question from local suppliers. Apparently, people that buy copper tape are mainly concerned with snail invasion, so it's sold as a pesticide. They don't really care if it's conductive or not, as long as it keeps the snails away from their plants. LOL! I had a good laugh at this! :) It's the first time I hear about this. I learned something new about snails in my search for conductive tape. So they know that it works for snails, but they can't tell if only the top side of the tape is conductive or if both top and bottom side are conductive. I know there are such things as conductive adhesives or glues. But since a single roll costs about 9€ (about 8£) and I didn't know if it would work, I decided to get it elsewhere (or not at all). I think I will order online, along with the appropriately sized heat shrink tubes. The CR2032 is 20 mm in diameter and the biggest heat shrink tube I have is 19 mm wide and it won't go on even if I push it. So I will get the right size and some copper tape (to satisfy my curiosity about conductivity). I might as well skip the copper tape. I have preserved the battery terminals by prying them up and then flattening them out with pliers. I found a guy from Latin America (Argentina) did the same, and then he rolled them up a little bit like hooks, and then just taped them to the battery. That way you get more volume to press against the battery as you wrap the tape around! Clever! He also added a small piece of tape in between the wires to prevent shorts. You can see his video here: kzbin.info/www/bejne/qafXeGevpch-h6M It's hard to believe that people are still changing their CMOS batteries this way. It's a good thing that we still can change the batteries on electronic devices. I'm currently doing some work on a 22 years old Fujitsu Siemens laptop for an acquaintance of mine, and I measured the battery voltage to 0.43 V. It's no wonder both BIOS and Windows were complaining about wrong date and time. I have a handful of these CR2032 and a mix of other button cell batteries, brand new and recently purchased. I just had to improvise to get one in. I have not worked on a laptop before that didn't have a CR2032 socket. It must be the very old ones that didn't have a socket for a CMOS battery. In any case, thanks for the video!

[@CKL882]

What about the end part where there is the connector we don't have the tool to make that..?

[@ultimatehandyman]

You get that part from your laptop (original source of the battery) Or you can buy the connectors, they are called micro JST connectors

[@KhalixPlays07]

​@@ultimatehandymanDoes USB Connector work in this method? To just easy plugged in and out

[@astrotech9663]

How do you know which side the wire need to be place on the battery.

[@ultimatehandyman]

The red wire goes to positive + The black wire goes to negative -

[@plica06]

Do you really need to put the shrink wrap over the battery as well as the insulation tape? Would the insulation tape be enough? I don't have a heat gun or the shrink wrap. If I have to get those on eBay then this isn't going to be a cheap fix after all !

[@ultimatehandyman]

No, it will be fine with just the insulation tape 👍

[@m1sterwait]

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

[@matthieuratrimoson9436]

I cant seem to find any conductive tape in my country, is there an alternative, without having to solder? Thanks

[@ultimatehandyman]

I'd just put a small piece of aluminium foil over the wire before taping it to the battery with insulation tape. Thanks for the comment

[@matthieuratrimoson9436]

I actually thought of that but wasn't sure, thanks for replying

[@sameerrajadhyaksha9273]

What was the type of tape used initially to stick ..?

[@ultimatehandyman]

Insulation tape Thanks for the comment 👍

[@MylaGee]

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.

[@ultimatehandyman]

👍

[@BitsOfTruth]

I bought a Cmos battery with wrong style plug. What is the best way to splice wires to put old connector on new battery?

[@ultimatehandyman]

I’d strip the insulation and just twist them together, then tape with insulation tape 👍

[@BitsOfTruth]

@@ultimatehandyman I had planned to try that but finally got it to plug in using a cut off floss pick as a press down tool. I have never seen them plug in that tight. I hope I don't need to unplug for a long time. Thanks.

[@VannMizan]

dat explosion though...scary, but thanks for the early warning one question, can i just tape the wire onto the battery using normal electrical tape, and then cover the whole battery with more tape?

[@ultimatehandyman]

Vann Mizan Yes, that should be fine ;-)Thanks for the comment

[@VannMizan]

how about "the mess" done by that electrical tape when exposed to laptop's heat?

[@ultimatehandyman]

Vann Mizan Does your laptop get that hot that it will melt the tape? If so you might be best off using some heat resistant tape?

[@VannMizan]

its my sister's, and she' s like typical user

[@josemelo7753]

hey, i only got insulation tape, is it okay if i just wrap the battery and cables around it? do i need the conductive tape?

[@ultimatehandyman]

Yes, it should be fine ;-) Thanks for the comment

[@josemelo7753]

​@@ultimatehandyman thanks to you man!

[@musscullen4571]

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

[@ultimatehandyman]

You are welcome Thanks for the comment

[@ludivinojrtamma706]

What kind of tape did you put in the wire of your cmos battery?

[@ultimatehandyman]

Copper tape, but it will still work, if you just use insulation tape ;-)

[@ItachiGurl]

Is it absolutely necessary to out the heat shrink wrap on it?

[@ultimatehandyman]

You might get away with insulation tape, but it might come unstuck eventually with heat.

[@Deadgirl97]

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

[@ultimatehandyman]

You are welcome Thanks for the comment 👍

[@rbpenn]

Same. If I'm doing all this to avoid waiting for shipping (amazon can get me one in 2 days) and save a buck or two, but I have to buy conductive tape, heat shrink sleeves and a heat gun? How long for all that to arrive and how much more expensive than a battery? I have a feeling that just wrapping it well in electrical tape and calling it a day would be fine in most cases.

[@lazyhomeowner]

do you really need the conductive tape? the wires themselves are conductive. wouldn't scotch tape followed by the electric tape be good enough?

[@ultimatehandyman]

Probably not, but I didn't want it failing any time soon! Thanks for the comment 👍

[@Apathy474]

Hi, I have been having problems with my laptop and it wont boot up. It posts perfectly fine, and I can get into the bios , but it wont boot into anything. It stops after "checking Nvram"

[@ultimatehandyman]

Have you tried booting it in safe mode?

[@Orange-Jumpsuit-Time]

Also worth a mention, instead of the tape you can use electrically conductive wire glue.

[@ultimatehandyman]

👍

[@lennonpolo]

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

[@ultimatehandyman]

You are welcome Thanks for the comment

[@MikeBe-qb6dr]

I have a Asus Vivobook X540MA and would like to know where the CMOS battery is located, I have opened the vivobook but can not locate the CMOS battery. "help"

[@ultimatehandyman]

You should be able to download the manual from here- www.asus.com/uk/support/Download-Center/ That should tell you where it is 👍

[@cpuscan8272]

hey i tried to update my bios on a lenovo thinkpad t420 .something went wrong and it doesn't power on, it just beep there is a black screen, can you please tell me how to fix it with wincris and if you can please tell us how to put the bios files inside the usb or how to rename it or i can use the usb bios programmer tool will that work? Can you please make a video on how to fix a black screen after a bios failed to update

[@ultimatehandyman]

Sorry, I'm no computer expert- my knowledge is strictly limited. Have a search for Eli the computer guy

[@HelmetVanga]

The only one who can help you is the maker of your motherboard. THey have live chat support based on your warranty.. Flashing BIOS is not easy, it is advanced, they always recommend to read the manual or talk to their service tech engineers b4 you proceed.. The only one who can help you now is the maker of your motherboard...FLashing BIOS is saving on an EPROM The actual BIOS code is stored on an EPROM chip, usually close to the small coin shaped battery. EPROM simply means the chip can be electronically reprogrammed so you can update to the latest BIOS version. The process is called "Flashing" the BIOS. The following link explains why people screw up their computers when updating to a new version of BIOS. www.techrepublic.com/blog/10-things/10-common-mistakes-you-should-avoid-when-flashing-your-bios/

[@amandeepchandhok7166]

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

[@iZbooo]

what about if the plug has a WHITE RED BLACK cables, what to do with the WHITE?

[@ultimatehandyman]

Isboset Gutierrez When you remove the wires from the old battery see where the white wire connects to and put it in the same place. A lot of power tool manufacturers now put several extra terminals on larger batteries for power tools etc. so when you look at them there might be 4 or 5 metal contacts but if you open the battery up there are only two wires actually connected to anything.

[@1954BJohn]

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

[@ultimatehandyman]

You are welcome ;-) I did try soldering it first, until I had to go and wash the carbon that was stuck to my forehead LOL.