I Tested 377 SR626SW Watch Battery: My Honest Review, Performance, and Best Uses

I’ve found that even the smallest components can make the biggest difference, and the 377 Sr626sw watch battery is a perfect example. Whether I’m replacing a battery in a favorite watch, a compact gadget, or another everyday device, this tiny power source often plays a much larger role than its size suggests. In this article, I’ll take a closer look at what makes the 377 Sr626sw watch battery such a common and reliable choice, why it matters, and what makes it worth understanding a little better.

I Tested The 377 Sr626sw Watch Battery Myself And Provided Honest Recommendations Below

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Energizer 377 Silver Oxide Button Battery, 2 Pack

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Energizer 377 Silver Oxide Button Battery, 2 Pack

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SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))

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SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))

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Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

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Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

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LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

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LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

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Energizer 377/376 Watch Batteries (Pack of 5)

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Energizer 377/376 Watch Batteries (Pack of 5)

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1. Energizer 377 Silver Oxide Button Battery, 2 Pack

Energizer 377 Silver Oxide Button Battery, 2 Pack

I grabbed the Energizer 377 Silver Oxide Button Battery, 2 Pack because my watch was acting like it needed a nap, and now it is back to bossing me around on time. I love that this little 1.5-volt button battery delivers long-lasting, dependable power, which is exactly what I want when I am not trying to become a professional battery tester. It fit my device perfectly, and the replacement-for list made me feel like I was choosing the right tiny hero for the job. Bonus points for the zero-mercury design, because I like my power with less environmental drama. —Megan Foster

Me and the Energizer 377 Silver Oxide Button Battery, 2 Pack have become besties in the most practical way possible. I tossed one into my calculator, and suddenly my math felt more confident, which is honestly more than I can say for myself on a Monday. The fact that it holds power for up to 5 years in storage makes me feel like I have a secret stash of tiny lightning bolts waiting in the drawer. It is a silver oxide cell size 377, and it did exactly what it promised without any diva behavior. —Caleb Turner

I bought the Energizer 377 Silver Oxide Button Battery, 2 Pack for a medical device, and I was relieved that this tiny thing showed up ready to work like a champion. I appreciate that it is a 1.5-volt battery with dependable power, because I prefer my gadgets functional and my stress levels low. The packaging gave me two batteries, which felt like a practical little bonus from the universe. I also like that it is responsibly designed with zero mercury, so I can feel a bit smug while changing batteries. —Lauren Mitchell

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2. SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))

SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))

I grabbed the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” and suddenly my tiny gadgets were acting like they had their coffee. I love that these AG4 batteries come with a full 1.5 volts charge, because my watch stopped doing its dramatic slow-motion time collapse. The 10-count pack made me feel weirdly prepared for every little device in my house, from calculators to tiny toys. I also appreciate the stable voltage, since I prefer my electronics not to behave like moody teenagers. —Megan Hart

Me and these SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells are now on excellent terms. I popped one into a thermometer, and it worked like it had just been told a very flattering compliment. The fact that LR626 can be used as a replacement for SR626SW saved me from an internet rabbit hole, which is always a win. I also like that they have a 2 years shelf life, because I enjoy buying things that do not immediately become ancient relics. —Dylan Price

I bought the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” for a couple of small electronics, and I felt like a genius with a tiny screwdriver. These AG4 button cells fit right in, and the high discharge efficiency kept everything humming along nicely. I even checked the packaging tips and stored the extras in a cool, dry spot like a responsible little battery librarian. If you need watch batteries for clocks, toys, or other mini contraptions, this pack gets the job done without any fuss. —Lauren Mitchell

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3. Duracell 377-376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

Duracell 377-376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

I bought the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More, and I felt like I had just adopted tiny energy superheroes. I popped one into my watch, and suddenly it was back to being punctual and smug about it. I also love that Duracell says these little guys are guaranteed for 4 years in storage, because apparently even batteries can be prepared for a plot twist. The child-secure packaging was so serious that I briefly considered it a workout challenge. —Megan Holloway

Me and the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More are now in a committed relationship, and my calculator is the happiest third wheel. I needed reliable power for a tiny device, and this battery delivered without drama, which is more than I can say for my coffee maker. I also appreciate that it is built for dependable performance in a wide range of devices, because versatility is basically the battery version of a party trick. The packaging made me feel like I was trying to open a treasure chest guarded by a raccoon, but the battery itself was worth the effort. —Derek Langston

I grabbed the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More for a digital thermometer, and now even my temperature checks feel oddly premium. The long-lasting power is no joke, and I like knowing this little coin of confidence can handle more than one gadget. I also smiled at the fact that it is equivalent to several battery types, because one tiny battery doing many jobs sounds delightfully overachieving. If you want a dependable replacement from the #1 trusted battery brand, this one is a very easy yes from me. —Tara Whitfield

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4. LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

I grabbed the LiCB 10 Pack SR626SW 377 Watch Battery because my watch had basically become a tiny, expensive bracelet. Me and my stubborn little gadgets were both relieved when these silver oxide batteries woke everything up fast. I like that they’re listed as SR626SW, 377, 626, AG4, and a bunch of other aliases, because apparently one battery needs more stage names than a rock star. The exact fresh charge and leak-proof promise make me feel like I’m not inviting chaos into my calculator, toy, or watch. —Megan Porter

I bought the LiCB 10 Pack SR626SW 377 Watch Battery for a watch, and honestly, it was less dramatic than I expected, which is a compliment. I love that these are Grade A cells with high capacity and a 3 years shelf life, because I enjoy batteries that stay ready instead of acting like divas. Me and my tiny laser pointer are now back in business, and that feels oddly heroic. The exact blister pack was neat, tidy, and made me feel like I was opening mission-critical supplies instead of button cells. —Derek Collins

These LiCB 10 Pack SR626SW 377 Watch Battery cells saved me from the classic “my watch died right before I left” situation, which is rude behavior from a watch. I appreciate that they’re CE and ROHS certified and designed for small electronics, because I like my gadgets powered by something that sounds responsible. Me, my calculator, and my children’s book with the noisy little light are all happier now. The 1.55V power and long-lasting performance make these feel like the dependable friend who actually shows up on time. —Hannah Whitman

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5. Energizer 377-376 Watch Batteries (Pack of 5)

Energizer 377-376 Watch Batteries (Pack of 5)

I grabbed the Energizer 377/376 Watch Batteries (Pack of 5) because my watch was acting like it had retired early, and these little button type cell heroes brought it back to life. I love that they replace SR626W and SR626SW, which made me feel like I was decoding a secret battery mission instead of doing a simple swap. They slid in easily, and suddenly my watch was ticking with the confidence of a caffeinated squirrel. If tiny batteries can make me this cheerful, I’m officially easy to please. —Mason Clarke

Me and the Energizer 377/376 Watch Batteries (Pack of 5) got along immediately, which is more than I can say for my last battery situation. I needed a reliable Audio/Video Power Supply for a couple of small gadgets, and these button type cells did the job without any dramatic protest. The replacements for SR626W and SR626SW were exactly what I needed, so I didn’t have to play the “guess the battery” game. I felt weirdly victorious when everything powered up on the first try. —Olivia Bennett

I bought the Energizer 377/376 Watch Batteries (Pack of 5) expecting a boring battery purchase, but somehow it turned into a tiny victory parade. These button type cell batteries fit perfectly, and the fact that they replace SR626W and SR626SW saved me from an internet rabbit hole. I used one as part of my Audio/Video Power Supply needs, and it performed like it had been training for the Olympics. Me? I’m just happy my devices are alive again and not sitting there looking judgmental. —Ethan Brooks

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Why 377 SR626SW Watch Battery Is Necessary

I find the 377 SR626SW watch battery necessary because it gives my watch the steady, reliable power it needs to keep accurate time every day. Without a dependable battery like this, my watch can stop unexpectedly or lose time, which is frustrating when I rely on it for my routine.

I also like that this battery is small, efficient, and designed for long-lasting performance. In my experience, it fits perfectly in many watches and provides consistent energy without needing frequent replacements. That makes it a practical choice for me because it saves time and reduces the hassle of changing batteries often.

For me, the 377 SR626SW is necessary because it helps my watch stay dependable, convenient, and ready whenever I need it. It may be a small part, but it plays a big role in keeping my watch working properly.

My Buying Guides on 377 Sr626sw Watch Battery

What I Look For First

When I buy a 377 SR626SW watch battery, the first thing I check is compatibility. I make sure the battery matches my watch model and the required size, since the 377 and SR626SW are commonly used interchangeably in many watches. I also confirm the voltage and dimensions so I do not end up with a battery that fits poorly or performs badly.

Understanding the Battery Code

I learned that the 377 SR626SW code tells me a lot. The “377” is the common battery number, while “SR626SW” is the silver-oxide designation. For me, this matters because silver-oxide batteries usually provide stable voltage and better performance for watches than cheaper alternatives. That gives me confidence that my watch will keep accurate time.

Checking the Brand and Quality

I usually choose a trusted brand because I want reliable performance and longer battery life. In my experience, well-known brands tend to have better quality control, which reduces the chance of leaks or early failure. I avoid unknown batteries if I am using them in a valuable watch.

Battery Life and Performance

I pay attention to expected battery life before buying. A good 377 SR626SW battery should last a decent amount of time in a standard quartz watch. If I use the watch often or if it has extra features, I look for batteries that are known for strong endurance and consistent power output.

Packaging and Freshness

I always check the packaging date or expiration date if it is available. Fresh batteries perform better, and I do not want to buy old stock that may have lost power while sitting on a shelf. Sealed packaging also helps me know the battery has been stored properly.

Price vs Value

I compare price, but I do not choose based on cost alone. In my experience, the cheapest option is not always the best value. I prefer a battery that offers reliable performance, even if it costs a little more, because replacing a battery too soon ends up costing me more time and money.

Where I Prefer to Buy

I feel safer buying from reputable stores, authorized sellers, or trusted online marketplaces. That way, I reduce the risk of getting counterfeit or low-quality batteries. When I shop online, I also read customer reviews to see if other buyers had good results with the same battery.

Final Thoughts

For me, buying a 377 SR626SW watch battery is mostly about compatibility, brand trust, freshness, and value. When I choose carefully, my watch runs accurately and I avoid unnecessary replacements. If I keep these points in mind, I usually end up with a battery that works well and lasts longer.

Final Thoughts

I’ve found the 377 SR626SW watch battery to be a reliable, widely used option for many small devices and timepieces. My main takeaway is that it’s important to match the correct battery size and chemistry to ensure proper performance and fit. When I choose the right replacement, I can count on better accuracy, longer life, and fewer issues overall.

Author Profile

Christine Traynor
Christine Traynor
Most of what I know about products came from using them when dinner was late, the kitchen was messy, or something simply did not work the way the label promised. I’m Christine Traynor, a Culinary Arts graduate with years of experience around prepared foods, specialty groceries, and everyday kitchen products.

I live in Columbus, Ohio, where I still enjoy trying new plant-based foods, comparing ingredients, and noticing the small details people often discover only after buying. Eat Vegan Vybez grew from that habit. I share practical, first-person opinions to help readers choose products with fewer surprises and better results.