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Showing posts from September, 2026

Casio MQA-100G Battery Change (Module 333)

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 Casio MQA-100G Battery Change    (Module 333) Hello fellow Casio enthusiasts from around the World, I hope you are all well. In this post I am going to change the battery in my MQA-100G. The watch had been running well (for over 3 years), until I noticed that the second hand had stopped running and the LCD section had become very faint leading me into a panic to change the battery. I had presumed (wrongly as it happened) that I had a spare battery but I couldn't remember which type it took so I checked an old post to see if I had mentioned it there, but I never mentioned it nor took a picture of the new battery. So that led me to open the watch up to see what type of battery the watch needed. Let me begin... The picture above shows the LCD section is very dim. The second hand has also stopped moving, leading me into panic mode to change the battery. I say panic mode because if the battery starts to leak (and it would have, which I will reveal later in this post) it ...

Casio AB-200 Data Bank Watch Battery Change (Module 321)

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Casio AB-200 Data Bank Watch Battery Change   (Module 321)  Hello Casio lovers from around the world, I hope you are well. As the title suggests, I will yet again be replacing the battery in the AB-200. To be fair, for an old watch it doesn't eat through batteries. It has actually been three years since I last changed the battery in this watch so I'm quiet happy with it's battery usage. To be honest though I did use a decent battery (Duracell) in the watch the last time I changed it, so I thought I would use the same battery again.  The watch uses a LR1130 type cell, so I bought the Duracell brand and it cost £3.90. Let me begin... As you can see in the picture above, the LCD module is still keeping time, but the hands have stopped moving so it's time to change the battery. First on all I placed the watch face down on a soft towel so the face didn't pick up any scratches... With the new battery at hand it was time to start the replacement. My first job was to remove...