Thanks for putting up this video. Just changed my battery, the watch's hopefully good to go for the next 10 years. Here are a few differences/problems I ran into. 1) Figuring out how to unlatch the latch - I had to use a magnifier (actually my phone's camera) to figure out how to do it. A pin is the exact right tool to use, a very small flat screwdriver didn't quite work. 2) The sticker was actually on the inside of the lid, not over the battery. 3) There was some sort of black sticky tape over the spring holding the battery in, I had to remove it before I could remove the old battery. 4) The O-ring was stuck to the case cover when I removed it, there were some solid deposits (maybe 10 years worth of sweat? 😁 ) stuck to the O-ring. Removed them by soaking in hot water, then scraping gently. The back cover had some deposits on it too, was tempted to clean the back cover, decided not to. Hopefully the watch is still waterproof. Looked up the price of o-rings - problem is you can't find them, and they cost a lot of money when you can - multiple times the cost of the battery. 5) One thing you forgot to mention - you have to short out the connector at the bottom of the hole marked "AC" - it's close to the latch - with the top of the battery to start up the watch. The little sticker says to use (I presume metal) tweezers, I used a short piece of jumper wire bent in a U. In retrospect a piece of paperclip bent in a U would be the perfect tool for this. Checking online - I'm VERY surprised to find this model of watch is still available. About the same price as what I paid for it, too, maybe 10-12 years ago. Lots of similar G-Shock branded ones available, too - some as cheap as USD7-8. Maybe I'll buy a second one to wear, and put this one in the drawer as a backup.
@Pedro Henrique I haven't actually done anything to test it, but I wear it every day, that includes washing my hands getting the watch wet, so it's at least waterproof under atmospheric pressure...
@Pedro Henrique I'm glad people make videos like this.. before I tried this myself I thought it would be a lot harder than it was. Without watching this video I wouldn't have even have known where to start.
@Pedro Henrique Yes.. the problem is I can't remember the details. Will have to go watch those videos again just to see what it was about. I recall there was some drawback - you lost one of the other functions in the process. I don't think I will be opening up the watch again just for that, though.
A little late but I'm just now seeing this one. Anyway, he also didn't ground the AC terminal with the - terminal. I'm not really sure what that even does, but the manufacturers mostly agree that it should be done.
You also need to touch the AC and battery at the same time with jewellers tweezers to restart the watch, and be careful to realign the rubber washer/gasket or water will get into the watch.
ARGH... I watched several other videos about changing batteries in Casio watches and bought a CR2016 cell. Turns out this is the ONLY one that uses a CR2025. Maybe it's because it's the only one that has a 10 year battery life.
@@okaro6595 Interesting. So does the W96H (which seems to have the exact same module inside the case). ruclips.net/video/mV1Xqh1n-AY/видео.html See 12:16
То есть , можно купить обычную батарею и она послужит 10 лет ? Я свою родную ещё не менял. Идёт уже 11 й год. Пока в норме. Подсветкой почти никогда пользуюсь . Сигнал каждый час и иногда секундомер.
If the seal is in good condition, it just needs to be cleaned and lubricated. My watch is 15 years old, I changed the battery but not the seal. I don't have a problem with water, I sometimes wear it in the pool. Just make sure that the seal fits well in the slot.
No a very well made video with the replaced battery with gasket out of place and in the video you didn't show clearly the front face of the watch for a couple of seconds just kinda threw the watch face down on the table .So I had to watch the whole video before I knew if it was the watch I was interested in. My battery is about 7 years old but getting a bit dim now. I will replace it soon.
![[mod] Casio W800-H Countdown Timer Modification](http://i.ytimg.com/vi/hw8Lm9fd8vE/mqdefault.jpg)
![[mod] Casio W800-H Countdown Timer Modification](/img/tr.png)
Thanks for putting up this video. Just changed my battery, the watch's hopefully good to go for the next 10 years. Here are a few differences/problems I ran into. 1) Figuring out how to unlatch the latch - I had to use a magnifier (actually my phone's camera) to figure out how to do it. A pin is the exact right tool to use, a very small flat screwdriver didn't quite work. 2) The sticker was actually on the inside of the lid, not over the battery. 3) There was some sort of black sticky tape over the spring holding the battery in, I had to remove it before I could remove the old battery. 4) The O-ring was stuck to the case cover when I removed it, there were some solid deposits (maybe 10 years worth of sweat? 😁 ) stuck to the O-ring. Removed them by soaking in hot water, then scraping gently. The back cover had some deposits on it too, was tempted to clean the back cover, decided not to. Hopefully the watch is still waterproof. Looked up the price of o-rings - problem is you can't find them, and they cost a lot of money when you can - multiple times the cost of the battery. 5) One thing you forgot to mention - you have to short out the connector at the bottom of the hole marked "AC" - it's close to the latch - with the top of the battery to start up the watch. The little sticker says to use (I presume metal) tweezers, I used a short piece of jumper wire bent in a U. In retrospect a piece of paperclip bent in a U would be the perfect tool for this.
Checking online - I'm VERY surprised to find this model of watch is still available. About the same price as what I paid for it, too, maybe 10-12 years ago. Lots of similar G-Shock branded ones available, too - some as cheap as USD7-8. Maybe I'll buy a second one to wear, and put this one in the drawer as a backup.
@Pedro Henrique I haven't actually done anything to test it, but I wear it every day, that includes washing my hands getting the watch wet, so it's at least waterproof under atmospheric pressure...
@Pedro Henrique I'm glad people make videos like this.. before I tried this myself I thought it would be a lot harder than it was. Without watching this video I wouldn't have even have known where to start.
@Pedro Henrique Yes.. the problem is I can't remember the details. Will have to go watch those videos again just to see what it was about. I recall there was some drawback - you lost one of the other functions in the process. I don't think I will be opening up the watch again just for that, though.
@Pedro Henrique Ah that was it.. loss of a couple of the display elements. Come to think of it, I might have done it but I can't remember.. 😁
Hi there, but I just noticed, if you look closely, that when you placed the back of the watch - the gasket was not aligned to the watch's case.
I also saw this
The dumb ass rushed it
A little late but I'm just now seeing this one. Anyway, he also didn't ground the AC terminal with the - terminal.
I'm not really sure what that even does, but the manufacturers mostly agree that it should be done.
You also need to touch the AC and battery at the same time with jewellers tweezers to restart the watch, and be careful to realign the rubber washer/gasket or water will get into the watch.
What's the AC??
@@iskandartaib you will see it marked as AC internally. Alternating Current
@@Chrishagen OK.. I found another video that shows what needs to be done. It's a hole just to the side of the battery latch.
@@iskandartaib correct
Thanks I couldn't get that stupid latch undone, the tack worked perfectly!
thanks for sharing this! i use stopwatch every day and my battery wears down faster.
CR2025 = 10 Years Battery Life. Battery change very simple!
ARGH... I watched several other videos about changing batteries in Casio watches and bought a CR2016 cell. Turns out this is the ONLY one that uses a CR2025. Maybe it's because it's the only one that has a 10 year battery life.
Casio F-201WA also has CR2025 and 10 years.
@@okaro6595 Yeah, and there are probably more. Considering how many different watches Casio made...
@@okaro6595 Interesting. So does the W96H (which seems to have the exact same module inside the case). ruclips.net/video/mV1Xqh1n-AY/видео.html See 12:16
То есть , можно купить обычную батарею и она послужит 10 лет ? Я свою родную ещё не менял. Идёт уже 11 й год. Пока в норме. Подсветкой почти никогда пользуюсь . Сигнал каждый час и иногда секундомер.
Thay pin xong đi bơi có bị vào nước ko?
Your rubber gasket is slip bro 😦😦
yeah, that was 4 years ago
Not enough detail on removing the battery
how long it lasted?
What determines a 10 year battery replacement??
How many years and months before you change the cell
They promise 10 years, but it's hard to tell because of how long it stays on a shelf before it gets purchased.
What about changing out the gasket?
If the seal is in good condition, it just needs to be cleaned and lubricated. My watch is 15 years old, I changed the battery but not the seal. I don't have a problem with water, I sometimes wear it in the pool. Just make sure that the seal fits well in the slot.
You missed showing which side faces up +-.
Thats not even safe to wear in the shower now. Sealing up a 5atmos watch is a lot teickier than this careless attempt.
No a very well made video with the replaced battery with gasket out of place and in the video you didn't show clearly the front face of the watch for a couple of seconds just kinda threw the watch face down on the table .So I had to watch the whole video before I knew if it was the watch I was interested in.
My battery is about 7 years old but getting a bit dim now. I will replace it soon.