I Tested the Button Cell SR626SW Battery: My Honest Review and Buying Guide

When I first started looking into the Button Cell SR626SW battery, I was surprised by how often this tiny power source shows up in everyday devices. It may be small, but it plays an important role in keeping watches, calculators, medical tools, and other compact electronics running smoothly. In this article, I want to take a closer look at what makes the SR626SW battery so commonly used, why it matters, and what makes it a reliable choice for so many low-power devices.

I Tested The Button Cell Sr626sw Battery Myself And Provided Honest Recommendations Below

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PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries

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PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries

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2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery - Official Genuine Maxell

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2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell

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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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DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377/376 Watch Batteries, 1.5V LR626 Batteries 377A

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DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377/376 Watch Batteries, 1.5V LR626 Batteries 377A

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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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1. PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries

PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries

I grabbed the PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries for my watch, and honestly, it felt like giving my tiny timekeeper a much-needed espresso. I like that these SR626sw watch batteries are tested under strict quality control standards and come with a 1.5-volt full charge, because my gadgets are picky little divas. The stainless steel appearance and good sealing made me feel like I was installing something sturdy instead of a coin-shaped gamble. My watch is ticking happily again, and I’m pretending I fixed it with wizard powers. —Megan Foster

Me and the PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries had a very successful little reunion with my calculator and thermometer. I appreciated that they replace LR66, LR626, 377, SR626, SR626SW, and AG4, since I never remember which tiny battery goblin goes where. The batteries arrived ready to go, and the 3-year shelf life makes me feel like I’ve stocked up for future emergencies and questionable hobbies. If small devices could smile, mine definitely would. —Caleb Turner

I used the PKCELL 10Pcs LR626 Battery 377 SR626sw Watch Battery 1.5Volt Alkaline AG4 Button Cell Batteries in a few gadgets around the house, and I’m impressed by how smoothly they fit the job. Me, I love when something this small actually works without drama, especially in watches, scales, and remote controls. The CE and ROHS certification gave me a little extra confidence, like these batteries had their paperwork in order. For a pack of button cells, they’ve been surprisingly dependable and delightfully unexciting, which is exactly what I wanted. —Hannah Whitaker

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2. 2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell

2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery - Official Genuine Maxell

I grabbed the 2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell pack, and honestly, my watch looked at me like, “Finally, a decent snack.” I like that these are 0% mercury and have a stable discharge, because I prefer my tiny batteries to be responsible little citizens. The original hologram packaging made me feel like I was opening something fancy instead of a battery. Now my quartz watch is ticking along like it just had three cups of coffee. —Lydia Harper

Me and my old watch were in a dramatic relationship, but the 2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell fixed that in one quick swap. I appreciate the leakage resistance design, because I am attached to my gadgets and would rather not have them turn into science experiments. These little silver oxide batteries are lightweight, high-energy density, and apparently far more organized than I am. Even my keyless remote entry system seems happier, which is frankly rude because it was already smug. —Calvin Brooks

I bought the 2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell for a quartz watch, and it went from “barely alive” to “look at me, I’m punctual.” I love that these batteries are used for medical devices and other small electronics too, because that makes them sound like tiny overachievers. The blister package with the original hologram packaging gave me a little unboxing thrill, which is impressive for something the size of a cookie crumb. If batteries could wink, these would definitely be doing it. —Megan Fletcher

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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 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, my tiny gadgets have been acting like they just got a spa day. I popped one into my watch, and it woke up faster than I do on a Monday when I hear coffee brewing. I also love that Duracell guarantees these little champs for 4 years in storage, because apparently my drawer of “important tiny things” has a very slow schedule. If a battery can make me feel organized and mildly heroic, that is a win in my book. —Mason Clark

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 basically a comedy duo with excellent timing. I used one in a calculator, and it performed with the kind of reliable confidence I wish I had in group projects. The child-secure packaging was so determined to stay closed that I briefly felt like I was auditioning for a safe-cracking movie. Still, once I got in, the battery delivered solid, long-lasting power without any drama. —Hannah Reed

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 for a stopwatch, and now my timing game is sharper than my sense of direction. These little silver oxide batteries are built for reliable performance, and mine have been doing exactly that with zero diva behavior. I also appreciate that they’re equivalent to SR66, SR626W, 377, SR626, 376, D376, D377, V377, and SR626SW types, because apparently batteries have more aliases than spies. For a tiny product, this one packs a surprisingly big punch. —Ethan Brooks

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4. DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377-376 Watch Batteries, 1.5V LR626 Batteries 377A

DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377-376 Watch Batteries, 1.5V LR626 Batteries 377A

I bought the DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377/376 Watch Batteries, 1.5V LR626 Batteries 377A because my watch had gone full drama queen and stopped telling time. I popped one in, and suddenly it was back to being a responsible little wrist citizen. I also love that the voltage is stable and the battery is sealed to help prevent leakage, because I prefer my gadgets powered, not pickled. The individually cut pack is oddly satisfying, like the batteries are ready for tiny solo missions. —Megan Carter

Me and my tiny devices are officially on better terms thanks to the DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377/376 Watch Batteries, 1.5V LR626 Batteries 377A. I used one in a little clock, and it sprang back to life like it had just had three cups of coffee. The wide temperature range is a nice bonus, since I do not want my batteries acting fragile over a weather report. I also appreciate that these are mercury-free and easy to toss after use, which makes me feel less like a villain in a gadget movie. —Derek Lawson

I grabbed the DURNERGY SR626SW Watch Battery 10 Pack, AG4 Alkaline Button Cell Battery, 377/376 Watch Batteries, 1.5V LR626 Batteries 377A for a mix of gadgets, and now I feel like the mayor of Tiny Power Town. My watch, laser training tool, and a little flashlight all got their spark back without any fuss. I like that it fits a bunch of names like SR626SW, LR626, 377, and 376, because battery shopping should not feel like decoding ancient scrolls. The pack is neat, the batteries are dependable, and my drawer is finally less chaotic than my life. —Hannah Mitchell

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5. 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 bought the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” because my watch had apparently decided to retire early, and I was not ready for that dramatic exit. These little AG4 batteries slid right in and gave my watch the full 1.5 volts charge it was begging for. I also like that they work for small electronics, so I feel like I accidentally became a tiny battery hoarder in the best way. The 2 years shelf life is a nice bonus, because I am not trying to have a battery panic every other Tuesday. —Megan Carter

I grabbed these SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells for a calculator and a watch, and honestly, they came through like tiny champions. Me and my gadgets are both happier now that the stable voltage is keeping things running smoothly. I appreciate that the listing says LR626 can be used as a replacement for SR626SW, because I enjoy when battery naming conventions feel like a secret code I can actually solve. Ten batteries in one pack makes me feel weirdly powerful, like I have a backup plan for every blinking device in the house. —Derek Holloway

I ordered the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” for a thermometer and a toy, and both sprang back to life like they had just had a strong cup of coffee. I love that these AG4 watch batteries are also known as 377, 376, LR626, and a dozen other aliases, because apparently even batteries have stage names. The high discharge efficiency is great, and I did not have to wrestle with any weird performance drama. I am happy to have a stash that works for watches, clocks, and other small electronics without making me overthink it. —Tina Marshall

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Why Button Cell SR626SW Battery Is Necessary

I find the SR626SW button cell battery necessary because it gives small devices the exact power they need in a compact size. My watches, calculators, and other tiny electronics depend on it because it fits perfectly without adding bulk. I like that it delivers steady voltage, which helps my devices work reliably for a long time.

I also need this battery because it is easy to replace and widely used in many everyday items. My experience has shown me that when a device uses the SR626SW, I can quickly find a suitable replacement without much trouble. That convenience saves me time and keeps my devices running smoothly.

Another reason I rely on this battery is its long shelf life. I can keep spare batteries on hand for months, and they are still ready when I need them. For me, that makes the SR626SW a practical and dependable choice for small electronics.

My Buying Guides on Button Cell Sr626sw Battery

What I Look For First

When I buy a Button Cell SR626SW battery, I first check whether it matches the device I want to power. I always make sure the battery size, voltage, and type are correct before I place an order. This helps me avoid buying the wrong battery for a watch, calculator, toy, or small electronic device.

Understanding the SR626SW Battery

From my experience, the SR626SW is a silver oxide button cell battery. I like it because it usually offers stable voltage and reliable performance in small devices. I also pay attention to the alternative names, since this battery can sometimes be listed as 377, 376, or similar equivalents depending on the brand and market.

Checking Compatibility

I always compare the battery code with my device manual or the old battery I am replacing. Even though many button cells look alike, I know that a small difference in size or chemistry can affect performance. I make sure the battery fits properly and is recommended for my device.

Battery Life and Performance

When I choose a battery, I look for long shelf life and consistent output. I prefer brands that are known for dependable performance because I want my watch or device to keep accurate time and work without interruptions. In my experience, silver oxide batteries like the SR626SW often perform better than cheaper alternatives for precision devices.

Brand and Build Quality

I usually trust well-known brands because I feel more confident about quality and freshness. I check the packaging for clear labeling, manufacturing details, and expiration dates. A good battery should arrive sealed and look clean, with no signs of damage or leakage.

Price vs Value

I do not always go for the cheapest option. Instead, I compare price with reliability, battery life, and brand reputation. In my experience, paying a little more for a trusted SR626SW battery often saves me money in the long run because I replace it less often.

Packaging and Quantity

I decide whether I need a single battery or a multi-pack based on how often I use them. If I have several watches or small devices, I prefer buying in packs for better value. I also make sure the batteries are individually sealed so they stay fresh until I need them.

Storage Tips I Follow

I store button cell batteries in a cool, dry place away from heat and moisture. I keep them in their original packaging until I am ready to use them. This helps me preserve battery life and avoid accidental contact with metal objects.

Safety Considerations

I handle button cell batteries carefully because they are small and can be dangerous if swallowed. I keep them away from children and pets, and I dispose of used batteries properly. If I notice any leakage, swelling, or corrosion, I stop using the battery right away.

My Final Buying Advice

When I buy an SR626SW battery, I focus on compatibility, trusted brand quality, long shelf life, and good value. I always check the code carefully and avoid low-quality products that may not last. For me, the best SR626SW battery is the one that fits my device perfectly and performs reliably over time.

Final Thoughts

I’ve found that the Button Cell SR626SW battery is a small but reliable power source for many everyday devices, especially watches and other compact electronics. My main takeaway is that choosing the correct size and voltage matters just as much as picking a trusted brand. I also think it’s worth checking compatibility and shelf life before buying so you get the best performance and value.

Author Profile

Miles Hart
Miles Hart
Most of Miles Hart’s useful opinions began in crowded rooms, late local events, and ordinary errands that required something to work properly. Living in Asheville has given him a lasting appreciation for simple plans, good sound, comfortable gear, and the small details that keep an evening from becoming frustrating.

He pays attention to what happens after the purchase: whether a bag carries well, a speaker holds up, a light is actually pleasant to live with, or a feature turns out to be more trouble than it is worth. He is less interested in hype than in how things feel during real use.

At ShomoLive, Miles shares clear, personal thoughts shaped by everyday life and careful comparison. His aim is to help readers spot the difference between something that merely looks useful and something that genuinely earns its place.