![My brother's watch lasted a decade on the original battery, and these batteries are tiny, so I'm just wondering.... how long with a big enough battery could one last? : r/casio My brother's watch lasted a decade on the original battery, and these batteries are tiny, so I'm just wondering.... how long with a big enough battery could one last? : r/casio](https://preview.redd.it/zzadwac6xie61.jpg?auto=webp&s=f4ef2833263cf1ae5b309009d5a52cad874a1a2a)
My brother's watch lasted a decade on the original battery, and these batteries are tiny, so I'm just wondering.... how long with a big enough battery could one last? : r/casio
![Amazon.com: Casio Men's A178WA-1A Illuminator Stainless Steel Watch : Casio: Clothing, Shoes & Jewelry Amazon.com: Casio Men's A178WA-1A Illuminator Stainless Steel Watch : Casio: Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/51nxp-iF7IL._AC_UY1000_.jpg)
Amazon.com: Casio Men's A178WA-1A Illuminator Stainless Steel Watch : Casio: Clothing, Shoes & Jewelry
![Casio Men's 10 Year Battery Quartz Watch with Stainless Steel Strap, Silver, 24.1 (Model: AE-1200WHD-7AVCF) : Amazon.ca: Clothing, Shoes & Accessories Casio Men's 10 Year Battery Quartz Watch with Stainless Steel Strap, Silver, 24.1 (Model: AE-1200WHD-7AVCF) : Amazon.ca: Clothing, Shoes & Accessories](https://m.media-amazon.com/images/I/61esbYX+73L._AC_UY1000_.jpg)
Casio Men's 10 Year Battery Quartz Watch with Stainless Steel Strap, Silver, 24.1 (Model: AE-1200WHD-7AVCF) : Amazon.ca: Clothing, Shoes & Accessories
![Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL](https://i.redd.it/df7p5fv0muz71.jpg)
Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL
![Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL](https://preview.redd.it/ol8vffv0muz71.jpg?width=640&crop=smart&auto=webp&s=4b047cb19d04d9460dce65e1adfb2a775dac3a46)
Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL
![Ceas barbatesc Casio Standard AE-1500WH-8BVEF Digital 10-Year Battery Life (AE-1500WH-8BVEF) | JAPORA Ceas barbatesc Casio Standard AE-1500WH-8BVEF Digital 10-Year Battery Life (AE-1500WH-8BVEF) | JAPORA](https://www.japora.ro/media/catalog/product/cache/1/thumbnail/800x900/356a85a1aeb5876ada70dadbe28d3975/A/E/AE-1500WH-8BVEF.jpg)