A Comprehensive Guide to G-Shock Battery Replacement

houseSoh Sep 16, 2023

Why Replace the Battery?

A G-Shock watch typically runs on a lithium-ion battery, known for its long life. However, no battery lasts forever, and eventually, it will lose its charge. When you notice your G-Shock watch running slow or stopping altogether, it's a clear sign that it's time for a battery replacement. Replacing the battery is a simple and cost-effective way to ensure your watch continues to serve you faithfully for years to come.

What You'll Need:

Before you begin the battery replacement process, make sure you have these essential tools and materials on hand:

  1. New Battery: Ensure you have the correct replacement battery for your specific G-Shock model. You can find this information in your watch's manual or by checking the old battery.
  2. Watch Case Opener: A tool designed to open the watch's case without damaging it. There are various types available, so choose one that suits your watch's design.
  3. Anti-Static Tweezers: These are crucial for handling the new battery and avoiding static discharge.
  4. Microfiber Cloth: To keep your workspace clean and free of dust and debris.
  5. Small Screwdriver Set: For opening and reassembling the watch case.

Steps for G-Shock Battery Replacement:

Here's a step-by-step guide to replacing the battery in your G-Shock watch:

Step 1: Prepare Your Workspace

Choose a clean, well-lit workspace. Lay out your tools and materials, ensuring everything is within reach.

Step 2: Remove the Watch Case Back

Using the appropriate watch case opener, carefully remove the case back. Be gentle to avoid scratching the watch or damaging the gasket, which maintains the watch's water resistance.

Step 3: Identify and Remove the Old Battery

Locate the old battery and use anti-static tweezers to carefully remove it. Pay attention to the battery's orientation; take a quick photo if needed to remember how it's placed.

Step 4: Insert the New Battery

Place the new battery into the same position as the old one, ensuring it's correctly oriented. Gently press it into place.

Step 5: Reassemble the Watch

Carefully reattach the case back, ensuring that the gasket is properly seated. Use your screwdriver set to secure the case back without overtightening.

Step 6: AC Reset the Watch

Depending on your G-Shock model, you may need to AC reset the watch after replacing the battery. Refer to your watch's manual for specific instructions.

Step 7: Check for Proper Functionality

Press the buttons and check that the watch is functioning correctly. Confirm that the time, date, and other settings are accurate.


With a bit of patience and the right tools, G-Shock battery replacement is a straightforward process that can extend the life of your beloved timepiece. By performing this simple maintenance task, you'll ensure that your G-Shock watch continues to serve you with accuracy and reliability, no matter where your adventures take you. Remember to consult your watch's manual for model-specific instructions and, if you're unsure about any step, consider seeking professional help from Jam May May.