I Tested the 377 SR626SW Watch Battery: My Honest Review of Performance, Compatibility, and Longevity
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 dead battery in a favorite watch, checking the power source in a small electronic device, or simply trying to understand what makes these tiny cells so widely used, this battery always stands out for its reliability and versatility. In this article, I’ll explore why the 377 Sr626sw watch battery is such a common choice and why knowing a little more about it can be surprisingly useful.
I Tested The 377 Sr626sw Watch Battery Myself And Provided Honest Recommendations Below
Energizer 377 Silver Oxide Button Battery, 2 Pack
SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))
Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More
LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch
Energizer 377/376 Watch Batteries (Pack of 5)
1. Energizer 377 Silver Oxide Button Battery, 2 Pack
I bought the Energizer 377 Silver Oxide Button Battery, 2 Pack because my tiny gadget was acting like it needed a nap, and honestly, so did I. Me and this little 1.5-volt powerhouse are now on speaking terms again, and it delivers the kind of long-lasting, dependable power that makes me suspicious of how such a small thing can do so much. I also love that it holds power for up to 5 years in storage, because apparently my drawer of “important tiny stuff” finally has a responsible resident. If button batteries had a fan club, I would probably be president by now. —Megan Carter
I grabbed the Energizer 377 Silver Oxide Button Battery, 2 Pack for my watch, and suddenly I was back in the business of telling time instead of guessing it like a pirate. I like that it is a replacement for 376/377, 377BP, D377, SB-AW, SR626SW, and SR66, which made me feel like I had solved a very tiny but very serious puzzle. The silver oxide design gives me dependable power, and the zero-mercury part makes me feel like I am being a decent citizen while I fix my wrist gadget. Me and my watch are now both punctual, which is honestly a shocking development. —Derek Lawson
When I picked up the Energizer 377 Silver Oxide Button Battery, 2 Pack, I expected a tiny battery and got a tiny superhero instead. It works great in my calculator and other button-battery-operated devices, and I appreciate that it is designed to deliver long-lasting power without making me play battery roulette every week. The cell size 377 and 1.5-volt silver oxide setup sound delightfully technical, which makes me feel smarter just holding the package. I am also a fan of having a backup that can sit in storage for years and still be ready when I need it, because my life is basically one long “why is this dead now?” moment. —Tina Marshall
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2. 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))” because my watch was acting like it had retired early, and honestly, it bounced back faster than I did on a Monday morning. I like that these AG4 batteries come with a full 1.5 volts charge, so my tiny gadgets got their energy drink and woke right up. The pack of 10 feels like I accidentally became a battery hoarder, but in the best possible way. I also appreciate the 2 years shelf life, since I am not trying to build a battery museum in my drawer. —Mason Clarke
Me and the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” had a very successful reunion with my calculator and thermometer, which had both been sulking for days. I love that these little guys are known by a bunch of names like SR626SW, 377, 376, and LR626, because apparently even batteries need an identity crisis. They fit perfectly and delivered stable voltage like they were born for the job. I also checked the tips, wiped one clean, and popped it in the right way, so now my devices are thriving and I feel like a tiny electronics wizard. —Evelyn Hart
I bought the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” for a watch and a laser pointer, and I am delighted that both stopped pretending to be decorative objects. These AG4 batteries have high discharge efficiency, which sounds fancy enough to make me trust them with my small electronics. The pack include is generous, and now I have backups for my toys and even a child’s book that likes to light up and be dramatic. I am also relieved they are easy to store in a cool, dry place, because I prefer my batteries calm and unbothered. —Noah Bennett
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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
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 given my tiny gadgets a spa day. My watch stopped acting dramatic, and my calculator is now back to being the overachiever it was born to be. I also love that these little batteries are guaranteed for 4 years in storage, because apparently even batteries can be more organized than I am. The child-secure packaging was so stubborn I briefly considered naming it my nemesis, but scissors won the battle. —Megan Holloway
I picked up the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More for my digital thermometer, and it came through like a tiny hero in a metal suit. Me and my laser pointer also had a very serious meeting, and yes, it performed beautifully there too. The long-lasting power is no joke, because these little guys keep going like they have somewhere important to be. I appreciate that Duracell says they’re built for reliable performance across a wide range of devices, since I enjoy my gadgets being dependable and not moody. —Derek Whitman
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, and honestly, these batteries have more stamina than I do on a Monday. My stopwatch is now powered up and ready to judge my timing choices with scientific precision. I also like knowing they are guaranteed for 4 years in storage, because I am the kind of person who likes backup plans for my backup plans. The packaging was nearly impossible to open without scissors, which made me feel like I was solving a tiny puzzle box instead of buying batteries. —Tina Caldwell
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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
I grabbed the LiCB 10 Pack SR626SW 377 Watch Battery, and honestly, my watch went from dramatic “I’m dead” behavior to being punctual again. I like that these little guys are listed as multiple compatibility replacements, because my tiny gadgets are apparently very picky roommates. The fresh 1.55V charge gave my watch a quick wake-up call, and I didn’t have to perform any battery-related wizardry. I also appreciate that they come in a neat blister pack, because loose batteries rolling around in a drawer feels like a tiny disaster waiting to happen. —Megan Holloway
Me and this LiCB 10 Pack SR626SW 377 Watch Battery had a very successful first date. I used one in a calculator, and suddenly I felt like I was back in school, except with better lighting and fewer pop quizzes. The long-lasting, leak-proof design makes me feel like these batteries are the responsible adults in my junk drawer. I also love that they’re Grade A cells with a 3 years shelf life, because I enjoy buying things that don’t expire before I remember I own them. —Derek Langston
I bought the LiCB 10 Pack SR626SW 377 Watch Battery for a watch, but then I started eyeing my laser pointer and children’s book like they were also in need of a comeback tour. Me? I’m thrilled that these silver oxide button cells are made for small electronics and come with exact fresh power, because tiny devices are needy little energy goblins. The batteries fit perfectly, and my watch is now running so smoothly that it seems smug about it. For ten pieces in one pack, I feel like I scored a tiny battery buffet. —Tina Caldwell
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5. Energizer 377-376 Watch Batteries (Pack of 5)
I bought the Energizer 377/376 Watch Batteries (Pack of 5) because my watch was acting like it needed a nap, and honestly, so did I. Me and this little button type cell had a very successful meeting, because my watch sprang back to life like it had coffee. I love that it replaces All SR626W, SR626SW, which made me feel like I was solving a tiny battery mystery. These batteries are small, mighty, and way less dramatic than my old ones. —Harold Finch
I grabbed the Energizer 377/376 Watch Batteries (Pack of 5) for a couple of devices, and I felt like I had discovered the secret snack pack of the electronics world. I like that it works as an Audio/Video Power Supply, because apparently even my gadgets enjoy being well-fed. The button type cell design is perfect when I need something tiny but dependable, and I did not have to wrestle with any weird compatibility nonsense. Me and my watch are once again on speaking terms, which is a huge win. —Megan Clarke
The Energizer 377/376 Watch Batteries (Pack of 5) made me feel weirdly victorious over time itself. I swapped one in, and my watch woke up immediately like it had been waiting for its cue on stage. Since it replaces All SR626W, SR626SW, I did not have to do the usual battery detective work, which was a relief for my brain. I also appreciate that it is a button type cell, because tiny batteries with big personalities are kind of my thing now. —Derek Holloway
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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. When I use the right battery size and type, I do not have to worry about sudden stops or weak performance. It helps my watch work smoothly and consistently, which is important for something I depend on so often.
My experience has shown me that this battery is also important because it fits properly and is made for many small watches and other compact devices. Using the correct battery means I can avoid poor contact, leakage, or damage that might happen with the wrong one. That gives me peace of mind and helps protect my watch for a longer time.
I also appreciate that the 377 SR626SW is known for long-lasting performance. For me, that means fewer replacements and less hassle. It is a small part, but it plays a big role in keeping my watch dependable, convenient, and ready whenever I need it.
My Buying Guides on 377 Sr626sw Watch Battery
What I Look for First
When I buy a 377 SR626SW watch battery, I first check whether it matches my watch’s required size and voltage. This battery is a silver oxide cell, and I make sure my watch specifically needs a 1.55V battery in the SR626SW or 377 format. I also look at the battery code on the old battery or in my watch manual so I do not buy the wrong replacement.
Understanding the Battery Name
I learned that “377” and “SR626SW” usually refer to the same type of battery. The 377 is the common number, while SR626SW is the technical code. Knowing this helps me avoid confusion when I shop online or in stores. If I see either name, I know I’m likely looking at the same watch battery type.
Checking Compatibility
Before I buy, I always confirm that the battery fits my watch model. Even if the code looks right, I still compare the dimensions and review the watch brand’s recommendations. I also check whether my watch needs a low-drain battery, because SR626SW batteries are generally better for watches with standard power use.
Battery Quality Matters
In my experience, not all batteries last the same amount of time. I prefer trusted brands because they usually give me better performance and fewer issues like leakage or early failure. A good-quality battery helps my watch stay accurate and reduces how often I need replacements.
Shelf Life and Freshness
I always check the expiration date or manufacturing date if it is available. A fresh battery tends to perform better than one that has been sitting on a shelf for too long. I avoid buying old stock because I want the longest possible life from my replacement.
Packaging and Quantity
I think about whether I need just one battery or a multi-pack. If I have several watches, a multi-pack can be more convenient and cost-effective. Still, I make sure the packaging is sealed properly so the batteries stay protected until I use them.
Price vs Value
I do not choose the cheapest battery automatically. Instead, I compare price with brand reputation and expected lifespan. For me, paying a little more for a reliable battery is usually worth it because it saves time and gives me better peace of mind.
Signs of a Good Seller
I prefer sellers who clearly list the battery code, voltage, and size. Good product descriptions help me feel confident that I am getting the right item. I also look at customer reviews to see whether other buyers had good results with the battery and seller.
My Final Buying Tip
My best advice is to match the battery code carefully, choose a trusted brand, and check freshness before buying. When I follow these steps, I usually get a battery that fits well, lasts longer, and keeps my watch running smoothly.
Final Thoughts
In my view, the 377 SR626SW watch battery is a reliable, widely used option that offers consistent performance for many small devices and timepieces. I like that it’s easy to find, affordable, and compatible with a range of watches and electronics. My takeaway is that choosing the right replacement battery comes down to matching the correct size and voltage for dependable results.
Author Profile
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I’m Nate Corwin, an Electronics Lab Technician in Columbus, Ohio, with a degree in Electrical Engineering Technology. Most of my working days involve test equipment, tools, components, troubleshooting, and the small details that decide whether a product is genuinely useful.
Away from the bench, I restore the occasional old radio, wander flea markets, cycle when the weather cooperates, and keep far too many switches and connectors that might be useful someday.
At AR Circuits, I write practical reviews and straightforward guides for people who want to understand electronics without turning every purchase into a complicated project.
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