Watch batteries are containers filled with an electrolyte, allowing the flow of ions and electrons from one pole to another. They form a substantial category of products and can be classified based on their electrochemical system as: Casio watch batteries: a guide to choosing batteries
Is your watch not working properly?
The second hand jumps over two divisions, some functions (e.g. sensors or radio synchronization) are not activated? Does daylight charging no longer work? Is the electronic display starting to dim?
The list goes on and on, but all of these symptoms have one cause - the battery in your watch is dead and needs to be replaced. Where and what kind of battery should I buy? How to replace it? Answers to these and other questions you will find in this material.
- Alkaline
- Lithium
- Silver-zinc
- Silver oxide
Additionally, letters at the end of the name indicate the intended energy consumption devices for these batteries:
- W – for high consumption
- SW – for low consumption
Based on their shape, they can be round, flat, or button-shaped. The diameter ranges from 6.8 to 10 mm, and the height ranges from 1.6 to 3.6 mm. Most watch batteries are also suitable for Casio watches.
Characteristics of Watch Batteries
Alkaline Batteries
- Voltage: 1.5 V
- Storage Life: At least 5 years
- Markings: Prefixes L, LR, AG, and labeled "Alkaline"
- Features: Medium power reserve, widely used
Lithium Batteries
- Voltage: 3 V
- Storage Life: At least 7 years
- Markings: Prefixes BR, CR
- Features: Larger size, can withstand strong pulse charges and high loads, ensuring reliable and uninterrupted operation
Silver-Zinc Batteries
- Features: Low resistance, high energy capacity, capable of delivering high currents, operate over a wide temperature range, high mechanical strength
Silver Oxide Batteries
- Voltage: 1.5 V
- Markings: SR, SG
- Features: Stable voltage until the end of discharge, interchangeable with alkaline batteries but superior in stability and performance
Intended for Different Energy Consumption Devices
- W (high drain): For high energy consumption
- SW (low drain): For low energy consumption
Shape and Size
- Shape: Round, flat, button-shaped
- Diameter: From 6.8 to 10 mm
- Height: From 1.6 to 3.6 mm
Usage
Most watch batteries are also suitable for Casio watches.
Key Characteristics of Each Battery Type
- Alkaline: Medium power reserve, 1.5 V, storage life of at least 5 years
- Lithium: High voltage (3 V), large size, long storage life (at least 7 years)
- Silver-Zinc: High capacity, low resistance, high mechanical strength
- Silver Oxide: Stable voltage, high performance, interchangeable with alkaline batteries
