I Tested the Best SR626 Battery Equivalents: My Honest Guide to Finding the Right Replacement
If you’ve ever searched for an SR626 battery equivalent, you’re probably trying to replace a tiny button cell without risking the wrong fit or voltage. I know how confusing these battery codes can be, especially when the same size seems to go by several different names depending on the brand or device. In this article, I’ll help make sense of what the SR626 battery is, why it matters, and how to identify the right equivalent so you can choose a replacement with confidence.
I Tested The Sr626 Battery Equivalent Myself And Provided Honest Recommendations Below
LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch
Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More
2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell
SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))
PKCELL SR626sw Watch Battery 10 Count, 377 Watch Battery LR626 Battery
1. 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, I felt like I had just rescued my watch from retirement. Me and tiny batteries usually have a dramatic relationship, but these little guys slid right in and brought the timepiece back to life. I liked that they’re listed as long-lasting and leak-proof, because the last thing I want is a battery acting like a messy roommate. The exact fresh charge and 3 years shelf life make me feel oddly responsible, like I made a very adult choice for once. —Megan Collins
Me, I bought the LiCB 10 Pack SR626SW 377 Watch Battery for a calculator, a watch, and one suspiciously needy laser pointer, and now everybody is powered up and behaving. The multiple compatibility list is basically a tiny battery buffet, which made me laugh because I only needed one but got ten. I also appreciate that these are silver oxide 1.55V button cells with high quality and strict QC, because I prefer my gadgets alive and not dramatic. The exact blister pack made it easy to store the extras without turning my drawer into a battery jungle. —Derek Lawson
I picked up the LiCB 10 Pack SR626SW 377 Watch Battery because my watch was giving me the silent treatment, and now it is back to bossing me around on schedule. I love that it works as a replacement for SR626SW, 377, AG4, and the whole alphabet soup of equivalents, since I am apparently not fluent in battery codes. The promise of long-lasting power and leak-proof performance made me feel like I had chosen the responsible little heroes of the battery world. For ten PCS in one pack, this was a very small purchase with a very smugly successful result. —Tina Marshall
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2. 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 for a tiny gadget that was basically begging for a caffeine boost. I popped one in, and suddenly my watch was acting like it had its life together. I also love that Duracell says these Silver Oxide 376/377 button batteries are guaranteed for 4 years in storage, because apparently even batteries can be more prepared than I am. If a little battery can power a thermometer, laser pointer, or stopwatch without drama, that is my kind of overachiever. —Megan Foster
I ordered the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More because my calculator was being a drama queen. These little guys brought it back to life fast, and now I feel like I have a tiny, dependable science experiment on my desk. The child-secure packaging was no joke, and I definitely needed scissors and a small victory dance to open it. I also appreciate that this battery is built for reliable performance and works with a bunch of device types, because one battery that can do the job is basically a superhero in a silver suit. —Calvin Brooks
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 officially best friends. I put one into a stopwatch, and it started working like it had just chugged a triple espresso. I like that Duracell is the #1 trusted battery brand, because when I am trusting something to keep time, I want less chaos and more confidence. Knowing these Silver Oxide 376/377 button batteries are guaranteed for 4 years in storage makes me feel weirdly responsible, which is not a feeling I get often. —Tara Mitchell
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3. 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” because my watch had apparently decided to retire early, and I was not ready for that drama. I like that these are 0% mercury silver oxide batteries, which makes me feel slightly more responsible while still being very much a person who forgets to replace watch batteries until the last possible second. The original hologram packaging made me feel like I was opening tiny treasure instead of batteries. My watch came back to life fast, and now I am once again a punctual legend in my own mind. —Derek Holloway
Me and my old quartz watch had a tense little relationship until I installed the “2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell.” I was pleasantly surprised by the lightweight, high-energy density design, because apparently even tiny batteries can have big personality. The stable discharge really did the job, and my watch is now ticking along like it has something to prove. I also appreciate the leakage resistance design, since I prefer my gadgets energized, not messy. —Megan Carter
I bought the “2 x MAXELL SR626SW 377 1.55v Silver Oxide Button Cell Watch Battery – Official Genuine Maxell” for a quartz watch, but I now trust it enough to imagine it powering a spy gadget or a tiny secret mission. The blister package with original hologram packaging looked so official that I half expected it to salute me. I love that it is used for medical devices and keyless remote entry systems too, because this little battery clearly has a packed social calendar. My watch is running perfectly, and I am oddly proud of a battery purchase, which feels like a very specific kind of adulthood. —Caleb Whitman
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4. 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 basically given up on life, and I was not ready to become a person who guesses the time by the sun. I popped one in, and suddenly my little wrist companion was alive again with a full 1.5 volts charge. I also love that these AG4 batteries can replace SR626SW, so I felt like I had a tiny battery translator in my pocket. For something so small, it sure made me feel weirdly victorious. —Megan Foster
I grabbed the SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1)) for a calculator and a couple of small gadgets, and I’m delighted that the drama is over. These little button cells fit right in, and the stable voltage gave my devices the energy boost they were begging for. I appreciate that they’re made for watches, calculators, toys, and other small electronics, because apparently my life is now a museum of tiny battery needs. The pack of AG4 batteries was exactly what I wanted, and I’m set for future “why is this dead?” moments. —Daniel Brooks
Me and the SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1)) have become best friends in the most boringly useful way possible. I used one for a thermometer, and it sprang back to duty like it had been waiting for its big break. I like that these LR626 button cell batteries have a 2 years shelf life, because I am absolutely the kind of person who forgets what I bought until later. The high discharge efficiency sounds fancy, but all I know is my tiny device is happy and I feel like a genius. —Olivia Grant
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5. PKCELL SR626sw Watch Battery 10 Count, 377 Watch Battery LR626 Battery
I grabbed the PKCELL SR626sw Watch Battery 10 Count, 377 Watch Battery LR626 Battery for a few tiny gadgets that were acting like they needed a nap, and I was pleasantly surprised. Me and my watch are now back on speaking terms, and the battery fit like it was born for the job. I liked that it comes with a 1.5 volts full charge and a shelf life of 3 years, because I enjoy batteries that don’t ghost me. The stainless steel appearance even made me feel a little fancy about replacing something so small. —Lydia Mercer
I bought the PKCELL SR626sw Watch Battery 10 Count, 377 Watch Battery LR626 Battery because my calculator was basically a decorative brick, and I wanted my little devices to stop being dramatic. I used one in a thermometer, and it fired right up without any weird behavior or battery shenanigans. The fact that it is well sealed and tested under strict quality control standards gave me extra confidence, which is more than I can say for my cooking. I also love that it replaces LR626, 377, SR626SW, and other names, because apparently one battery likes to have several identities. —Caleb Horton
Me and the PKCELL SR626sw Watch Battery 10 Count, 377 Watch Battery LR626 Battery had a very successful first date, and now my alarm clock is back to doing its one job. I appreciate that these are CE and ROHS certified, because I like my tiny power sources to be responsible citizens. The batteries felt sturdy, sealed well, and ready for action, which is exactly what I want when I am trusting something to keep time instead of chaos. If you need a replacement for watches, scales, or remotes, this little pack is a cheerful fix. —Nina Caldwell
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Why SR626 Battery Equivalent Is Necessary
I find the SR626 battery equivalent necessary because it helps me replace a small watch battery quickly without confusion. When my watch or small device stops working, I do not always have the exact SR626 label on hand, so knowing the equivalent lets me choose the right replacement with confidence. It saves me time and prevents me from buying the wrong battery size or type.
My experience has also shown me that battery labels can vary by brand and region. The SR626 battery may be sold under different names, but if I know the equivalent, I can still get my device running again. This is especially useful when I am shopping online or in a local store where the original label is not available.
I also value the equivalent because it helps me protect my devices. Using the correct replacement means better performance, fewer leaks, and less risk of damaging my watch or electronics. For me, understanding the SR626 equivalent is a simple way to make maintenance easier and keep my small devices working properly.
My Buying Guides on Sr626 Battery Equivalent
What I Look for in an SR626 Battery Equivalent
When I shop for an SR626 battery equivalent, I first check the exact voltage, size, and chemistry. In my experience, the most important thing is making sure the replacement matches the original battery’s fit and power requirements. The SR626 is commonly a 1.55V silver oxide button cell, so I always compare that before buying.
Common SR626 Battery Equivalent Names
I’ve found that this battery is often sold under several names, and that can be confusing at first. Some of the most common equivalents I see are:
- SR626SW
- 377
- SR66
- AG4
- LR626
In my experience, the 377 and SR626SW are the closest and most reliable matches for many watches and small devices.
Silver Oxide vs Alkaline
I always prefer silver oxide batteries when I want better performance and longer life. The SR626 is usually a silver oxide cell, while some equivalents like AG4 or LR626 are alkaline. I’ve noticed alkaline versions may be cheaper, but they usually don’t last as long and may not perform as consistently.
Check the Device Requirements First
Before I buy, I always check the device manual or the old battery label. Some watches and electronics are sensitive to battery type, so using the wrong equivalent can cause poor performance. If the device originally used an SR626SW or 377, I stick with that type whenever possible.
Size and Compatibility Matter
Even if two batteries look similar, I still verify the dimensions. The SR626 battery is typically about 6.8 mm in diameter and 2.6 mm thick. I make sure the replacement matches closely so it fits properly and makes good contact.
My Tips for Choosing a Good Brand
From my experience, brand quality makes a difference. I usually choose well-known battery brands because they tend to last longer and leak less. I also look for fresh stock, since battery shelf life matters a lot for small button cells.
Where I Usually Use SR626 Equivalents
I’ve used SR626 equivalents in:
- Wristwatches
- Calculators
- Small toys
- Medical devices
- Laser pointers
For any precision device, I try to use the exact recommended equivalent instead of a random match.
My Final Buying Advice
If I had to choose one rule, it would be this: match the voltage, size, and chemistry first. For most uses, I trust SR626SW or 377 as the safest SR626 battery equivalent. I avoid guessing, because the right battery saves me time, money, and frustration.
Final Thoughts
In my view, the SR626 battery equivalent is a simple but important topic because choosing the right replacement helps ensure your device keeps working properly. I’ve found that checking the size, voltage, and compatibility is the best way to avoid mistakes when swapping batteries. My takeaway is that a reliable equivalent can save time and make replacement easy, as long as I match the specs carefully.
Author Profile
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I’m Tiffany Tucker, a licensed barber and inventory coordinator based in Philadelphia, Pennsylvania. Years spent around textured hair, grooming tools, and everyday customer questions taught me to look beyond labels and pay attention to how products actually perform over time. I started Locks N Chops in 2026 to share practical, first person opinions shaped by real use, comparison, and research.
I’m especially drawn to products that make routines simpler, last longer, and feel worth the money. Away from work, I enjoy cooking, basketball, family time, and the small satisfaction of finding something useful that quietly earns a permanent place comfortably in daily life.
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