How To Replace The Battery of Casio F-91W Watch - Easy Tutorial

Learn how to replace the battery of your Casio F-91W. Step-by-step instructions easy to follow.
Amazon link to get the replacement battery: amzn.to/3x5uPbU
Disclaimer to read before attempting to use the information of this video:
Due to factors beyond my control, I cannot guarantee against improper use or unauthorized modifications of this information. I assume no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. I recommend safe practices when working on any product and or with tools seen or implied in this video. Due to factors beyond my control, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and mine. Since I am not a specialist, please consult a professional for any help. The content of this video is for information only.
The Amazon links above are affiliate, which means that I may get a small commission from them if you decide to buy something on their website. This is to support this channel :)

[@garty2237]

Got my old F-91W beeping again. I'll be back in another 18 years!

[@frzzzdtm]

lmao

[@tirmikj5]

how you made it. i have the same prob. in mine?

[@gregross2541]

@@tirmikj5 kzbin.info/www/bejne/g6jRm4d4ird7bbM See that gold thing at the bottom? Bend it up so that it hits the back of the watch back plate when you close it. Also make sure the back plate is not upside down. On my watch the gold thing goes from right to left instead of left to right, but should be the same.

[@KhaledAlfaris]

Did you really have yours last 18 years? Casio themselves say it's only rated for 7

[@garty2237]

@@KhaledAlfaris yes, although not in constant use for that time. In the last few years of the battery life it was sort of half alive, a bit of the display and a very weak beep. Every Casio watch seems to exceed expectations though. That particular watch has been through a how wash cycle in a washing machine and half an hour in a dryer. Funnily enough the plastic has now broken on the main body of the watch where it fixes to be the strap, so it's finally done for in its original form :(

[@KristianBjornard]

Thanks for such a clear and simple to follow demonstration!

[@eddiedalisay2000]

"Or dislike it if you don't like me." haha this bruh took it personally.

[@d2heffz231]

It's probably cheaper to just get a new one but after you've had a 8 year streak with this 10 dollar watch you get sentimental lol.

[@eirikmurito]

Its not. A 5-pack of these batteries costs about 5 dollars

[@a.nelprober4971]

These watches cost $33 in my country now. Insane inflation

[@robest334]

Bought a pack of 5 cr2016 for less than $2 usd. Changed the battery of my casio f105. So happy that the illuminator is working perfectly wirhout dimming the lcd display.

[@DaBoomz13]

These watches are 30-40 euros in my country. Battery costs 1-2 euro.

[@fiddledotgoth]

Actually I found these watches on ebay for £3 (including postage); they are not real casio but work just fine otherwise...

[@alimpurnomosidi3261]

You save my day. Now I dont need to go to the watch technician to change my legendary f91w. This is KZbin supposed to be.

[@variousartists11]

youtube is eating up lots of jobs it seems

[@Raj61767]

Hi bro can I use 2032 battery for Casio f91w .

[@marceloktav9360]

@@variousartists11 i think it is better to replace battery by mechanic because they will offer you a good quality battery and you don't need to buy a tool for 1 time use

[@wisnutimbul]

Same

[@sarahcason8216]

I changed my watch battery! Can’t believe it. Thanks for the instruction 🙂

[@sweterollo8951]

Thank you for this super helpful video! Detailed and to the point!

[@bygallery7534]

Oh, a CR2016 is inside this watch! Now I know, why this battery last so long. I have my F-91W now for abaout 6 years. Thanks for this video.

[@bestopinion9257]

Mine lasted 13 years.

[@Dhruvnater456]

@@bestopinion9257 Good that's what should be expected from Casio

[@luc5798]

I've got two F-91W watches. The older one I got it in April 2008, and we are in January 2022. Almost 14 years and the battery is not dead yet!! 😮

[@patscanlan2678]

@@luc5798 Has the display got dimmer though?

[@luc5798]

@@patscanlan2678 No, the display is as good as with a new battery. 14 years in a few days! But having another f-91w, and also recently a very cool ca53w😎 , I don't use this watch much anymore except in chrono mode when I develop a film or make a print in the dark room... So most of the time it stays on chrono mode at zero, that must help. I also mention that I always deactivated the beep and that I never used the alarm much...

[@dobbinism]

Just changed the battery following your tutorial, everything perfect!

[@ET42Driver]

If possible, the gaskest should be re-greased with silicone-based grease. Other than that, nice step by step tutoial vid.

[@TricksTipsFix]

Thanks for the info! I didn't knew about the re-greasing.

[@ET42Driver]

TipsTricks No problem! Re-greasing the gasket is necessary, otherwise the watch might loose it's water-resistance/tightness.

[@Greg-tj8rg]

@@ET42Driver I read on a forum that if you don't have access to silicone grease then using vasaline is better than nothing

[@alimpurnomosidi3261]

Can I re grease the gasket using coconut oil or semi synthetic litium grease ( usually used for greasing bearing on bicycle)?

[@ET42Driver]

@@alimpurnomosidi3261 Personally, I wouldn't do that. Coconut oil and lithium grease react with rubber making it hard and brittle. It's either silicone grease or vaseline.

[@kobball2437]

Thank for sharing this video. I noticed that you put the case back up side down.

[@kangh.t7202]

Thank you so much. My watch life extended.

[@ronaldvaughn7087]

Thank you Sir For this wonderful replacement watch battery tutorial video. It was such a blessing

[@ardarctica]

very helpful video! i will change my battery when it runs out. does replacing the battery cause the watch to lose its water resistance?

[@artiglesias9317]

EXCELLENT presentation. Thank You!

[@mariojr377]

I Love the 10 years battery life Casio models.

[@TheShamwari]

I have a Canibal watch where it'sworks are similar to what is shown in the video. I bought it in 2016 and have replaced the batery in about 2020, Now as the light seemed to be diming I am trying to get it to start on the second new battery: but it is NOT starting. On the the removed back plate is written "short the AC circuit" However in fitting the battery, where the letters AC are stamped on the inner metal of the works there is an arrow pointing towads the middle. I have yet to find out what/where to touch with the tips of my tweezers ? I wish I had seen this video before trying this 2nd battery change, There is so much usefull information . The first first of a replacement battery was so simple, now3 years later I run into trouble ?

[@macjmf43]

A very welcome and concise video. Many thanks and well done.

[@Khaja_966]

Got my F-91w working again see you in 12 years

[@asiasaeed2105]

You put the caseback upside-down

[@eldabasa]

Haha true

[@mac11380]

Good eye

[@Dowlphin]

If it fits the window, that would be rebel mode.

[@HilaryMcKenna-b7u]

Thanks so much, that was easy thanks to your great demonstration.

[@evandynandar9183]

After you changed the battery do the WR change? Becaused you already open the case??

[@johnpro2847]

possibly the gasket probably need replacing but parts for these watches are almost impossible..need to buy a new one

[@milanprvulovic2544]

Battery for me this watch lasts for ten years, but I say change it before because the light in the display becomes weak. In the beginning of the replacement battery is a little complicated, but in time you will learn how to change and it's not hard. You need to be gentle, patient and persistent and you will succeed. The battery is long-lasting, and it's nice watch makes it special.

[@cockroachbuddy8886]

thanks pal

[@anthonykimtonsuccess]

Clear demonstration

[@SobhanAllah2]

Great video with all details needed👍

[@vrobro783]

If my Casio is really new but I wanted to open it up, do you recommend still re-greasing it or should I be fine for a while?

[@JohnDoe-bo2ef]

excellent tutorial👍 quick and to the point

[@zdxd5444]

Great tutorial, it really helped me. keep it up! 👍

[@TricksTipsFix]

thanks :)

[@daisychs2664]

there is something so nice about this video

[@clarebarratt1561]

Great instructional video. One of the best I've seen, well done.

[@eliotvernon3571]

Thanks, good video. + Dig the Music.. sounds like Casio keys in da mix:) xx

[@simonmesure6863]

Great instructions on how to replace coin battery in f-91. Also thanks for saying we need to make sure the silver buttons need to be pressed out. Am interested where you got your ctoss-point, flat-head screwdriver from. Very handy tool. BTW I have a f-94.

[@TricksTipsFix]

Thanks! I got that tool a while ago from ebay to repair my glasses, I think I typed something like '' eyeglasses repair tool screwdriver.

[@simonmesure6863]

@@TricksTipsFix thanks fella, notice a 3 in 1 tool for glasses repair. Only £1.18 with free p+p.

[@Tr1kx]

I only read about pushing the buttons AFTER I started reassembly. Easily sorted eventually. Moral... RTFM.

[@prisma29]

This helped a lot. So easy to follow. Thank you!

[@johnpro2847]

some sites say if it is made in Malaysia it is a fake..mine is made in Malasia..is it original?

[@fahimrahaman9401]

Original watches are made in Japan, Thailand, chaina or maybe Malaysia

[@andrewshadowy2025]

I have other digital watches and just cannot get the screws out. The Casio watches though look much better quality screws to remove?

[@FEDERAL_BOOBIE_INSPECTO]

Will there be any effect on the waterproofing ?

[@Michael-lo7sq]

Hi! Love your vids. I am having difficulty changing this watch buckle and the strap retainer, I can't seem to push the spring bar to release them, and i searched EVERY where to find if anyone did it before on this watch but no one has. Do you know how to do it? If you do a search, no one has it on KZbin thus far.

[@johnlucas6683]

Is it an old one? Maybe the spring bars springs has rusted up.

[@perryjohnson8161]

I did a battery replacement for the f91w I removed the white tape now it does not have any sound.

[@mickyjb2003]

Thanks I can now replace my battery.

[@jimkerr5577]

Well done! Thank you

[@dannygarcia4396]

What size Phillips head? #0 or #00?

[@aahilarqam9664]

My favourite watch I hold this watch in my hand for 7 years made in Thailand

[@narcidiodepaula]

SEU VIDEO ENSINA MUITO BEM. PARABEN

[@nasirkhanday4225]

If I will change the battery of my watch after that does it take the water inside..?

[@BLUECRUMBZ]

hello i was trying to change my casio f-91w battery somehow it lost its beeping sound after I finished, do you know a way I could regain the sound?

[@johnpro2847]

normally set in the alarm section..google.Mine stopped beeping too and settings did not help.

[@chrisjohngrabello5030]

Very helpful. Thanks dude i did it

[@driesvandenberghe5796]

What to do with the very little spring? I don't know where it came from...?

[@vincenzoturriciano4112]

Very good video, tank you.

[@srele136]

I've got a casio w215h. Its batery can last up to 10 years! The battery of my fathers f-91w can last 15 years!

[@clichethinker]

My f91 battery is getting weak after 28 years

[@guyo68]

Would never touch the digital display with my bare fingers, if I can help it, as you'll very likely grease it up that way. Would also be sure to wipe it down with a lint-free cloth before reinserting it in the case (not all of us have the luxury of replacing watch batteries in a 100% dust-free clean room...). Oh, and as others have mentioned, you screwed the caseback on upside down.

[@yurigagarin4974]

check it works b4 screwing up... helpful thanks

[@Alanvids]

Thanks. Very helpful 👌

[@ahmedmohsin3951]

Thanks a lot

[@old_confusion6792]

what kind of battery does the casio w217h watch use

[@martynbarnes6956]

Take comfort that over 2K like you, and only 107 dislike you. That’s pretty good going.

[@johnpro2847]

yes and the dilikes are now no longer public..to prevwent the trolls i guess?

[@gaboaaa23]

hello, ive destroyed the head of one screw on my casio watch. Is ther any way how i could remove the srew?

[@Brainman_2331]

Try getting a grip on the screw using pliers and then turn the screw until it comes out.

[@johnpro2847]

@@Brainman_2331 or use flat tweezers

[@mx-ig2yf]

hi may i know the use for the white sticker?

[@johnpro2847]

yes i am also wondering its purpose may insulate the battery from the metal back ?

[@YouKnowMyName241]

" or dislike it, if you dont like me",. lol, not related..

[@simonmesure6863]

He made the video, he can say what he likes,nicely of course

[@johnmurray7114]

@@simonmesure6863 agreed

[@dunstan96]

very useful

[@evansmine8]

Many problems with what he did, first, he touched the screen many many times. And second, I cant believe he didn't notice this, but he put the back upside down. :) Good video though.

[@neccoff]

Siempre recuerden que las baterías no se tocan con la mano ya que podemos quitar energía de la misma

[@manuelserrano2632]

Gracias por el video 😊

[@aptovegan]

Nice. SOng name pls

[@xscarecrowxx]

Thanks

[@evandynandar9183]

I've seen some videos where the watch need a reset button or else it won't work ?

[@TricksTipsFix]

Mine worked without any need to press any buttons after replacing the battery.

[@evandynandar9183]

@@TricksTipsFix aightt , and please can you tell me the exact size of the Screwdriver?

[@thequarrymen58]

great video dude

[@TricksTipsFix]

Thanks!

[@mickyjb2003]

Can you buy the gasket any where. Mine has broken.

[@johnpro2847]

no ..cheaper to buy a new watch

[@Gerald_Kraus]

great education video اخي

[@catalin5218]

Nice tutorial.

[@gemininosaga]

I order for one to replace a battery of one of those Casio watches it had to be purchased by your great grand pa.

[@ant123ps3]

Great tutorial, thanks!

[@tenodogblu]

Thank you.

[@praveenreddypappu5706]

I love casio f91

[@alexsouthgate7551]

Great thankyou

[@mahfuzboss3172]

Best and good batary is what

[@EleazarMateozuniga]

Good Job!! 👌👍

[@danielroybal1064]

I like your video

[@karvast5726]

I got a f-14 casio that works on the same principle unfortunately after changing the battery it’s not working so it’s dead

[@pabloestrada6561]

What would you have to remove to get rid of the beep completely?

[@niceprice6017]

Pablo Andres speaker probably

[@srele136]

There's a small spring that conects to the back of the watch. To stop the speaker you need to remove it.

[@gregross2541]

kzbin.info/www/bejne/g6jRm4d4ird7bbM Bend the gold thing right there down so it doesn't touch the back of the watch face. it will disable the alarm too.

[@andrescasas5889]

hey good video i have one of these at my house its a pretty good watch

[@TricksTipsFix]

Thanks! :) I got many watches but this one is still the one I choose for most situations.

[@eribertovasconcelos]

ótimo, vc é 10

[@udaykrish6735]

Where should I find a new resin strap for my f 91w .......after 3 years

[@johnpro2847]

parts can be expensive if you can even find them ..cheaper to buy as new one

[@antizalzal9176]

When i press "mode" button, the current time resets, why? Help!

[@danielroybal1064]

Good video

[@nsotelo]

does this affect the water resistance

[@srele136]

Yes it does affect the water resistance. You should take it to the service, so they can check the water resistance.

[@blackinkonpaper]

But a service center costs more than the $10 watch is worth. So it's better to DIY the battery replacement and just buy a new watch (and use the old one as a backup or spare).

[@cybertech1689]

Your bezel cover is put reverse . Could not alarm sounds .

[@lukassvoboda1776]

You didn´t tell most important. Watches are not working after battery replacement. You must put them back into case, screw the screws and after that you must press buttons to light up the LCD.

[@JayEvy]

Perfeito esse vídeo

[@iskandarmegat112]

Yes i get one

[@davidward1621]

Perfect,thanks

[@MrJoe5150]

Thank you!

[@WillScarlet1991]

What's that white square paper stuck on the watch?

[@johnpro2847]

yes ..perhaps insulte from mental case cover?

[@gudduali6218]

i love casio

[@flakeu]

I'm a big fan too from calculators, watches to music keyboards.. it's really an iconic brand

[@peternewson2275]

What song is this? I hear it everywhere

[@TricksTipsFix]

KZbin has a list of some free songs you can use in your videos without getting in troubles. This was one of them

[@شموخرجل-ع6ب]

Good job ⌚⌚⌚

[@raffaelefilippi4936]

3:53 Reverse cover mounting !

[@ambermazzarolo8921]

Where is the background music from?

[@flakeu]

KZbin has a few free songs you can choose to include in your videos without having to deal with any copyright infringement.

[@tauqeerahsan3009]

Which background music is this

[@averagecitizen863]

Replaced the battery but the watch didn't work , it only shows time when i press all of the 3 buttons at once

[@johnpro2847]

take mod=ule aout again..make sure all buttons are fully out..then caregully replace.Check all buttons are out

[@planes124]

Simple