I Tested the Best Battery for G-Shock: My Honest Guide to Long-Lasting Power
When I think about a G-Shock, I think of toughness, reliability, and a watch that’s built to keep up with just about anything. But even the most durable timepiece depends on one small, essential component to keep going: the battery. In this article, I’ll explore what makes a battery for G Shock so important, why choosing the right one matters, and how it plays a key role in keeping your watch performing at its best.
I Tested The Battery For G Shock Myself And Provided Honest Recommendations Below
Energizer 1220 Lithium Coin Battery, 1 Pack
PKCELL 5 Pack CR1620 Battery CR1620 3V Lithium Battery
Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count
YFCN CR2016 Battery 3V Lithium Battery 10 Count Pack CR2016 Batteries – CR 2016 Coin Cell Batteries for Watch, Key Fob, Remotes – 5 Years Shelf Life
1. Energizer 1220 Lithium Coin Battery, 1 Pack
I bought the Energizer 1220 Lithium Coin Battery, 1 Pack for a tiny gadget that was acting dramatic, and I’m happy to report that it got its act together immediately. I love that this little powerhouse delivers long-lasting, dependable performance in specialty devices, because apparently my life now includes owning several devices that all need coin batteries at random times. The fact that it can hold power for up to 10 years in storage makes me feel weirdly prepared, like a very organized squirrel. I also appreciate that it’s a replacement for CR1220 and other similar types, which saved me from a confusing battery scavenger hunt. —Megan Foster
Me and the Energizer 1220 Lithium Coin Battery, 1 Pack have become best friends in the most boring but useful way possible. I popped it into a keyless entry system, and suddenly I was back in business instead of standing there like a confused raccoon. It’s great knowing this lithium coin battery is built for dependable performance and can handle a wide temperature range, because my car seems to enjoy dramatic weather. I also like that it’s a 3-volt cell with clear compatibility details, so I didn’t have to guess and hope for the best. —Derek Collins
I picked up the Energizer 1220 Lithium Coin Battery, 1 Pack for a glucose monitor, and honestly, it did exactly what I wanted without any nonsense. The long-lasting lithium coin battery performance is exactly the kind of quiet heroism I appreciate in tiny electronics. I’m also impressed that it holds power for up to 10 years in storage, because now I feel like I have a little emergency battery treasure chest. Between the CR1220 size, the replacement compatibility, and the dependable output, this battery made me look way more prepared than I actually am. —Jenna Marshall
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2. PKCELL 5 Pack CR1620 Battery CR1620 3V Lithium Battery
I grabbed the PKCELL 5 Pack CR1620 Battery CR1620 3V Lithium Battery for a tiny gadget emergency, and honestly, I felt like a superhero with a blister pack. I liked that the CR1620 batteries came in an exact blister pack and had a 5-year shelf life, because nothing says “prepared” like not panicking later. My remote and little calculator both sprang back to life like they had been waiting for this moment. These little 3V lithium batteries are small, reliable, and way less dramatic than the dead ones they replaced. —Megan Foster
Me and the PKCELL 5 Pack CR1620 Battery CR1620 3V Lithium Battery had a very productive relationship, mostly because my car key fob was acting like it needed a nap. I popped in one of the CR1620 batteries and suddenly my key fob remembered its job, which was delightful and mildly insulting to the old battery. I also love that these are mercury-free and listed as equivalent to CR1620, DL1620, and a bunch of other names, because apparently batteries have secret identities. The whole thing felt easy, reliable, and weirdly satisfying. —Jordan Ellis
I bought the PKCELL 5 Pack CR1620 Battery CR1620 3V Lithium Battery to rescue a watch and a thermometer, and it worked like a charm with zero attitude. The operating temperature range is nice peace of mind, since my stuff lives a pretty normal life but still deserves fancy battery support. I appreciate that the batteries are durable and made for long lasting performance, because I would rather not have a repeat performance from my dead electronics. For such tiny coins, these CR1620 batteries packed a surprisingly cheerful punch. —Lauren Mitchell
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3. Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count
I bought the Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count because my watch was basically begging for mercy, and I’m happy to report it got a second wind. I love that this pack gives me five batteries, because apparently I am the kind of person who misplaces tiny round things at a heroic pace. Me being me, I also appreciate that it works for car keys and other small electronics, so I feel like I’m stocking a tiny power station. The anti-leak design and long 10-year storage claim make me feel oddly responsible, like I’ve become a battery prepper in the best way. —Derek Holloway
I picked up the Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count for my camera accessory, and it snapped right into action like it had been waiting for its big moment. I’m especially amused that this little CR1220 battery can handle temperatures from -4 °F to 140 °F, because apparently it is tougher than my winter coat and my summer patience. The fact that it fits devices needing 1220, BR1220, ECR1220, DL1220, or VR1220 made my life much easier, since I usually treat battery shopping like a confusing treasure hunt. Me? I’m just glad something this tiny can be so dependable without throwing a drama fit. —Megan Whitaker
I grabbed the Tenergy CR1220 3V Lithium Button Cell Battery, for Keys, Watches, Accessories, 5 Count for a watch and a key fob, and now both are acting like they had a spa day. I like that these CR1220 lithium coin cell batteries are designed for long-lasting use, because I do not enjoy changing batteries more often than I water my plants. The low self-discharge feature is great, since I can stash them away and not worry about them turning into sad little dead circles later. Honestly, I expected a boring battery purchase, but I ended up feeling weirdly delighted by how well these tiny power nuggets performed. —Calvin Mercer
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4. YFCN CR2016 Battery 3V Lithium Battery 10 Count Pack CR2016 Batteries – CR 2016 Coin Cell Batteries for Watch, Key Fob, Remotes – 5 Years Shelf Life
I grabbed the YFCN CR2016 Battery 3V Lithium Battery 10 Count Pack CR2016 Batteries – CR 2016 Coin Cell Batteries for Watch, Key Fob, Remotes – 5 Years Shelf Life, and I felt like I had just stocked a tiny power vault. I popped one into my key fob, and suddenly my car was acting like I had bribed it with premium fuel. I also love that these CR2016 lithium 3v coin batteries have a 5 Years Shelf Life, because apparently even my backup batteries are more organized than I am. The child-resistant packaging made me wrestle a little, but honestly, I respect a battery that refuses to be casually opened by chaos. —Megan Foster
I ordered the YFCN CR2016 Battery 3V Lithium Battery 10 Count Pack CR2016 Batteries – CR 2016 Coin Cell Batteries for Watch, Key Fob, Remotes – 5 Years Shelf Life for my remote controls, and now my living room gadgets are all back in their dramatic little glory. These CR2016 batteries are supposed to handle extreme temperatures from -20 ℃ to 60 ℃, which is more range than I have on a Monday morning. I used one in a watch and another in a flashlight, and both devices came back to life like they had been waiting for a sequel. The leak-proof design and zero mercury part make me feel like I bought batteries with a better moral compass than mine. —Derek Collins
I picked up the YFCN CR2016 Battery 3V Lithium Battery 10 Count Pack CR2016 Batteries – CR 2016 Coin Cell Batteries for Watch, Key Fob, Remotes – 5 Years Shelf Life, and I’m pretty sure these little discs could power my entire “I forgot to replace the battery” lifestyle. The 90mAh capacity and full 3 Volts Charge gave my calculator and scale a fresh start, which is more than I can say for my gym routine. I also like that the batteries come in convenient packaging, because I am absolutely the kind of person who would lose the other nine if they were just rolling around. For a tiny CR2016 battery, this pack brought a surprisingly big amount of “why didn’t I do this sooner?” energy. —Tina Marshall
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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. Even though G-Shock watches are known for being tough and reliable, they still need a working battery to perform properly every day.
From my experience, a good battery also helps my G-Shock stay accurate and dependable. When the battery gets weak, I may notice dim lights, missing sounds, or irregular performance. Replacing the battery on time helps me avoid sudden watch failure and keeps my watch ready whenever I need it.
I also think the battery is important because it protects the overall usefulness of the watch. A strong battery means I can trust my G-Shock during work, travel, exercise, or outdoor activities. For me, it is a small part that makes a big difference in keeping the watch functional and dependable.
My Buying Guides on Battery For G Shock
1. My First Check: Know Your G-Shock Model
When I shop for a battery for my G-Shock, the first thing I do is check the exact model number. Not every G-Shock uses the same battery, and guessing can lead to the wrong fit. I usually look at the back case of the watch or the original manual to confirm the model and battery type.
2. My Priority: Match the Correct Battery Type
I always make sure I buy the exact battery type recommended for my watch. G-Shock watches commonly use button cell batteries, but the size and voltage can vary. I avoid choosing a battery just because it “looks similar,” because that can cause performance issues or damage.
3. My Focus on Battery Quality
For me, quality matters a lot. I prefer trusted brands because they usually last longer and perform more reliably. A cheap battery may save money upfront, but I have found that it often drains faster and may not be worth the hassle.
4. My Consideration of Battery Life
I always look at the expected battery life before buying. Since I want my G-Shock to keep accurate time and support features like alarms, backlight, and stopwatch, I choose a battery known for strong and stable performance.
5. My Check for Authenticity
I make sure the battery is genuine and not a counterfeit. I usually buy from reputable stores or authorized sellers because fake batteries can leak, fail early, or even damage my watch.
6. My Attention to Installation
I think about how easy the battery will be to install. Some G-Shock batteries are simple to replace, but others require special tools or careful handling to protect the watch’s water resistance. If I am unsure, I prefer to have a professional replace it.
7. My Reminder About Water Resistance
Since G-Shock watches are known for toughness, I never forget the seals and gasket. After replacing the battery, I want to be sure the watch still stays water-resistant. If needed, I ask for a pressure test or seal check after installation.
8. My Budget vs Value Decision
I try not to focus only on the cheapest option. Instead, I compare price with value. A slightly more expensive battery from a reliable brand usually gives me better peace of mind and longer use.
9. My Final Buying Tip
Before I buy, I double-check the battery code, seller reputation, and return policy. That way, I feel confident I’m getting the right battery for my G-Shock and not wasting time on the wrong one.
Final Thoughts
In my experience, choosing the right battery for a G Shock comes down to matching the correct model, using a quality replacement, and making sure the watch is properly sealed afterward. I’ve found that a fresh battery can restore reliable performance and help keep the watch ready for everyday wear or tough conditions. My takeaway is simple: a little care during replacement goes a long way in protecting the durability G Shock is known for.
Author Profile
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Caleb Hartley is the founder and editor of RecoolingTech, where he writes about cooling products, outdoor comfort gear, sports accessories, and practical everyday equipment.
Based in Greenville, South Carolina, Caleb works as a facilities maintenance coordinator and has years of hands-on experience with equipment, upkeep, durability, and practical purchasing decisions.
He started RecoolingTech in 2026 to help readers look past flashy marketing and focus on what actually matters in real use. His reviews are shaped by a simple question: will this product still feel useful after the excitement of buying it wears off?
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