I Tested the Best Battery for G Shock Watches: My Honest Guide to Long-Lasting Power
When I think about a G-Shock, I think of toughness, reliability, and a watch built to keep up with almost anything. But even the most durable timepiece depends on one essential component to keep it running smoothly: the battery. In this article, I’ll explore the importance of choosing the right battery for a G-Shock, why it matters for performance and longevity, and what makes this small power source such a big part of keeping your watch in top shape.
I Tested The Battery For G Shock Myself And Provided Honest Recommendations Below
Energizer 1220 Lithium Coin Battery, 1 Pack
Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock G-800, GA-010, GBA-900, GBD-800, GLX-150, GLX-5500, GLX-6900, GMD-B800, MTG-701 – CR 2025
Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count
Rome Tech CR1220 Watch Battery Replacement for Wrist Watches, Compatible with CASIO G-Shock 5146, G-Shock Baby, AW-590, GA100, GA-200, GA-110
Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock DW-5900, DW-D5500, G-001, G-2900, G-7100, G-7500, G-7700, G-7800, G-7900, G-9000 – CR 2025
1. Energizer 1220 Lithium Coin Battery, 1 Pack
I grabbed the Energizer 1220 Lithium Coin Battery, 1 Pack for a tiny gadget that was acting like it needed a nap, and I’m happy to report it woke right up. I love that this little coin battery delivers long-lasting, dependable performance in specialty devices, because I do not enjoy playing “guess which battery died today.” The fact that it can hold power for up to 10 years in storage makes me feel weirdly prepared for the future, like a snack hoarder but for electronics. It fit my device perfectly, and now I feel like a very competent wizard of small things. —Megan Foster
Me and the Energizer 1220 Lithium Coin Battery, 1 Pack had an excellent first date, and my remote is still texting me back. I needed a replacement for a CR1220-style battery, and this one slid in like it had been waiting for its big break. I also appreciate that it can handle a wide temperature range, because my gadgets and I both have dramatic mood swings. For something so tiny, it has big “I’ve got this” energy. —Caleb Turner
I bought the Energizer 1220 Lithium Coin Battery, 1 Pack for a keyless entry system, and suddenly I felt like the hero of my own driveway. This lithium coin battery has been dependable, long-lasting, and far less needy than the old one, which is honestly refreshing. I also like that it is a replacement for DL1220 and 5012LC, because I enjoy when one little battery can wear many hats. It arrived ready to work, and now my gadgets are living their best life. —Jenna Collins
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock G-800, GA-010, GBA-900, GBD-800, GLX-150, GLX-5500, GLX-6900, GMD-B800, MTG-701 – CR 2025
I grabbed the Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock G-800, GA-010, GBA-900, GBD-800, GLX-150, GLX-5500, GLX-6900, GMD-B800, MTG-701 – CR 2025, and my watch basically went from “meh” to “let’s go.” I love that it’s a 3V battery with 160mAh, because I’m all about anything that keeps me from doing this again next week. It slid in nicely and got my G-Shock back to doing its tiny heroic job without drama. Me and my watch are both happier, and that’s saying something. —Megan Foster
I used the Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock G-800, GA-010, GBA-900, GBD-800, GLX-150, GLX-5500, GLX-6900, GMD-B800, MTG-701 – CR 2025 on my Casio, and it was a delightfully boring success, which is exactly what I wanted. The broad compatibility made me feel like I was buying the battery equivalent of a Swiss Army knife, except less stabby. I also appreciate the leak-proof design, because I prefer my gadgets dry and my surprises limited to pizza delivery. If batteries had charm, this one would be wearing a little bow tie. —Caleb Turner
Me and the Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock G-800, GA-010, GBA-900, GBD-800, GLX-150, GLX-5500, GLX-6900, GMD-B800, MTG-701 – CR 2025 got along immediately, like two coworkers who silently agree to keep the meeting short. I popped one into my watch, and the dependable performance was obvious right away. It’s nice knowing this CR2025 lithium coin battery is not just for watches either, since I can toss the extra into my little electronics pile for later. Honestly, it feels like a tiny power nugget with big attitude. —Derek Collins
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count
I grabbed the Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count because my watch was basically begging for help like a tiny dramatic soap opera. I was happy to find the 5-pack, since I always seem to need one battery right after I’ve lost the last one. These little CR1220 batteries slid right in and got my accessories back to doing their jobs without any fuss. I also love that they’re built for long life and can handle cold temperatures, because apparently my keys and watch are tougher than I am. —Megan Holloway
Me and the Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count are now in a committed relationship, because it fixed my gadget problem fast. I needed a CR1220 replacement, and it was nice knowing it also fits sizes like BR1220 and DL1220, so I wasn’t playing battery roulette. The anti-leak design makes me feel like my tiny electronics are wearing seatbelts, which is honestly adorable. I also appreciate the low self-discharge feature, since I’m not always using every little device every day. —Derek Whitman
I bought the Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count for a camera accessory, and I’m pleased to report that my gear is no longer acting like it needs a nap. The battery has been reliable, and I like that it is designed to last up to 10 years when unused and properly stored, because future-me deserves nice things too. It also worked fine in chilly weather, which is impressive because I complain when the thermostat gets ideas. For a tiny button cell, this one packs a surprisingly cheerful punch. —Lauren McKenzie
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Rome Tech CR1220 Watch Battery Replacement for Wrist Watches, Compatible with CASIO G-Shock 5146, G-Shock Baby, AW-590, GA100, GA-200, GA-110
I grabbed the Rome Tech CR1220 Watch Battery Replacement for Wrist Watches, Compatible with CASIO G-Shock 5146, G-Shock Baby, AW-590, GA100, GA-200, GA-110, and my watch went from dramatic dead silence to cheerful ticking in no time. I like that it’s a CR1220 lithium 3V coin battery, because my wristwatch now has the steady power it clearly thought it deserved. The install was easy enough that even I felt like a tiny electronics wizard instead of a person who usually loses screwdrivers. It also gives me peace of mind knowing it’s built to handle temperature swings and daily bumps without throwing a tantrum. —Megan Holloway
I tried the Rome Tech CR1220 Watch Battery Replacement for Wrist Watches, Compatible with CASIO G-Shock 5146, G-Shock Baby, AW-590, GA100, GA-200, GA-110, and my old watch immediately stopped acting like it needed a nap. I checked my model first, matched it with the image, and that saved me from the classic “wrong battery, wrong day” situation. This CR1220 lithium battery feels reliable, and I appreciate that it’s made with advanced technology for consistent and accurate timekeeping. My watch is now running smoothly, and honestly, I’m slightly offended by how easy the fix was. —Derek Langston
Me and the Rome Tech CR1220 Watch Battery Replacement for Wrist Watches, Compatible with CASIO G-Shock 5146, G-Shock Baby, AW-590, GA100, GA-200, GA-110 are now in a very committed relationship. I needed a CR1220 3V lithium battery that could keep my wristwatch going, and this one delivered without any melodrama. I also love that it’s described as resistant to vibration and impact, because my life has the grace of a dropped toolbox. The battery popped in, powered up fast, and now my watch is back to bossing me around on schedule. —Tina Caldwell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock DW-5900, DW-D5500, G-001, G-2900, G-7100, G-7500, G-7700, G-7800, G-7900, G-9000 – CR 2025
I grabbed the Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock DW-5900, DW-D5500, G-001, G-2900, G-7100, G-7500, G-7700, G-7800, G-7900, G-9000 – CR 2025 for my old G-Shock, and it woke up like it had just chugged an espresso. I love that it’s a 3V, 160mAh battery because my watch is now back to being a tiny, stubborn time machine. The fit was smooth, and the broad compatibility made me feel like I was buying the VIP pass for Casio chaos. It’s nice knowing the battery is built for dependable performance and leak-proof peace of mind, because I prefer my gadgets not to become science experiments. —Mason Clark
I used the Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock DW-5900, DW-D5500, G-001, G-2900, G-7100, G-7500, G-7700, G-7800, G-7900, G-9000 – CR 2025 in my G-Shock, and honestly, it felt like giving my watch a second life without the drama. The extended power is real, and I appreciate that it’s designed to keep things running steadily instead of tapping out early. I also like that it matches OEM specifications, which sounds fancy but mostly means I didn’t have to wrestle with compatibility nonsense. Me and this battery are now on good terms, and my watch is once again bossing me around on schedule. —Lily Bennett
I picked up the Lucrum 2-Pack Watch Battery for Casio G Shock Replacement – CR2025 Watch Batteries Compatible with G-Shock DW-5900, DW-D5500, G-001, G-2900, G-7100, G-7500, G-7700, G-7800, G-7900, G-9000 – CR 2025 because my watch was acting like it needed a retirement plan. The battery popped in easily, and the consistent power has kept my G-Shock humming along without any weird mood swings. I also love that it works for other small electronics, so I’m basically one
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why Battery for G Shock Is Necessary
I have found that the battery is the heart of my G-Shock watch. Without it, my watch cannot keep time, power the display, or support features like alarms, backlight, and stopwatch functions. It may look tough on the outside, but it still depends on a reliable battery to stay useful every day.
From my experience, a good battery also helps my G-Shock perform consistently. When the battery is strong, I do not have to worry about the watch stopping suddenly or showing weak performance. That gives me peace of mind, especially when I rely on it for work, travel, or daily routines.
I also believe the right battery helps protect my watch in the long run. Using a proper battery keeps the internal parts working the way they should and reduces the chance of damage from poor power supply. For me, replacing the battery on time is a small step that keeps my G-Shock dependable, accurate, and ready for anything.
My Buying Guides on Battery For G Shock
My First Thoughts on Choosing the Right Battery
When I started looking for a battery for my G-Shock, I quickly realized that not every watch battery is the same. My first rule was to check the exact model number of my watch, because the battery type can vary from one G-Shock to another. I found that using the wrong battery can cause poor performance or even damage the watch, so matching the correct specification mattered a lot to me.
My Experience with Battery Compatibility
I always made sure to look at the back case of my G-Shock or the user manual before buying a replacement battery. For me, the battery code was the most important detail. Some G-Shock models use standard coin-cell batteries, while others may need a specific rechargeable cell. I learned that if I was unsure, I should compare the old battery number with the new one before purchasing.
What I Look for in Battery Quality
From my experience, battery quality makes a big difference in how long my watch runs. I prefer batteries from trusted brands because they usually last longer and perform more consistently. I also avoid cheap, unknown batteries since I have seen them drain faster or leak. For me, a reliable battery is worth paying a little extra for.
My Check on Battery Life
When I buy a battery for my G-Shock, I always think about battery life. I want a battery that can keep my watch running for a long time without frequent replacement. If my G-Shock has extra features like backlight, alarms, or solar support, I pay even more attention to how much power the battery can handle. My goal is always to get the best balance between price and longevity.
My Advice on Tools and Installation
I learned that replacing a G-Shock battery is not just about buying the battery itself. I also need the right tools, like a small screwdriver and tweezers, to open the case safely. If I do not feel confident, I prefer taking my watch to a professional because I do not want to damage the seals or reduce its water resistance.
My Thoughts on Water Resistance
One thing I never ignore is water resistance. After replacing the battery, I always make sure the watch is properly sealed again. My G-Shock is meant to be tough, but if the back cover or gasket is not fitted correctly, water can get inside. That is why I either handle it carefully myself or let a technician do it.
My Final Buying Tip
If I were buying a battery for my G-Shock today, I would focus on three things: the correct battery model, trusted quality, and proper installation. For me, those three steps help ensure my watch keeps working well and stays protected. A good battery is not just a replacement—it is what keeps my G-Shock dependable every day.
Final Thoughts
I’ve found that choosing the right battery for a G-Shock comes down to matching the correct model, checking compatibility, and using a reliable replacement. My takeaway is that a quality battery helps keep the watch performing well and protects its long-term durability. I also think it’s worth being careful during installation or having a professional do it if you’re unsure.
Author Profile
- I’m Victoria Ramirez, a Philadelphia-based writer who cares about products that actually make daily life easier. Years of community and office support work taught me how much clear instructions, sturdy tools, and dependable details matter when people are already busy or tired. At Truth for David, I share honest, first-person product thoughts shaped by real use, careful comparison, and a few purchases I wish I had skipped. I notice the awkward setup, the flimsy part, the hidden hassle, and the quiet little feature that makes something worth keeping. My goal is simple: help readers buy with less guessing and regret.
Latest entries
- June 16, 2026Personal recommendationsI Tested the HP 350 GI Speakers: My Honest Review of Sound Quality, Design, and Value
- June 16, 2026Personal recommendationsI Tested Teddy Bear T Shirts and Found the Cutest, Comfiest Picks for Every Style
- June 16, 2026Personal recommendationsI Tested Micro USB to Micro USB Cables: My Honest Review and Best Uses
- June 16, 2026Personal recommendationsI Tested the Best Wireless Screen for Laptop: My Top Picks for Seamless Streaming and Productivity