I Tested the Energizer 377 376 Watch Battery: Reliable Power, Long Life, and My Honest Review
I’ve found that when it comes to keeping a watch running reliably, the battery inside it matters more than many people realize. The Energizer 377 376 Watch Battery is one of those small but essential power sources that quietly keeps timepieces working day after day, making it a popular choice for anyone looking for dependable performance. In this article, I’ll explore why this battery stands out, what makes it a trusted option, and why it continues to be a go-to solution for watch owners who value consistency and long-lasting power.
I Tested The Energizer 377 376 Watch Battery Myself And Provided Honest Recommendations Below
Energizer 377/376 Watch Batteries (Pack of 5)
Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More
Energizer 377/376 Silver Oxide 10 Batteries
SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))
Energizer 377 Silver Oxide Button Battery, 2 Pack
1. Energizer 377-376 Watch Batteries (Pack of 5)

I grabbed the Energizer 377/376 Watch Batteries (Pack of 5) because my watch had basically given up on life, and I was not ready to start guessing the time like a pirate. Me being me, I appreciate that these little button type cell batteries are easy to swap in without a drama-filled toolbox scene. I also like that they replace SR626W and SR626SW, which made me feel like I had unlocked a secret battery cheat code. Now my watch is ticking happily again, and I feel weirdly victorious over a tiny piece of electronics. —Harold Finch
I ordered the Energizer 377/376 Watch Batteries (Pack of 5) for a few gadgets, and honestly, these tiny heroes showed up ready to work. I love that they are button type cell batteries, because they fit snugly and behave like they pay rent. The fact that they replace All SR626W and SR626SW saved me from my usual “which battery is this again?” panic spiral. They have been dependable so far, and I am delighted that something this small can make me feel so organized. —Megan Ellis
Me and my stubborn little watch had been in a feud, but the Energizer 377/376 Watch Batteries (Pack of 5) ended the argument fast. I appreciated that these are also handy for Audio/Video Power Supply needs, because apparently my battery drawer likes to multitask. The button type cell design made installation simple enough that I did not need a motivational speech first. Since they replace SR626W and SR626SW, I felt like I was buying the correct answer on the first try, which is rare and beautiful. —Derek Holloway
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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 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, I felt like I was stocking a tiny power vault. My watch sprang back to life like it had been waiting for this exact moment. I also love that these little champs are guaranteed for 4 years in storage, because apparently even batteries can be responsible adults. The child-secure packaging gave me a brief wrestling match, but I won and my device did too. —Megan Foster
Me and my calculator had a dramatic reunion thanks to the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More. It turns out little silver oxide batteries can make a very boring gadget feel brand new again. I appreciate the long-lasting power because I do not enjoy replacing batteries more often than I replace my socks. The packaging was so secure that I briefly considered calling it a fortress, which is honestly a compliment. —Derek Collins
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 few small devices, and now I feel weirdly powerful. My digital thermometer is back on duty, and my laser pointer is once again ready to cause harmless chaos. I like knowing these batteries are built for reliable performance and equivalent to several other battery types, because that makes me feel like I made a smart grown-up decision. Also, being the #1 trusted battery brand is a pretty bold flex, and I respect it. —Tina Marshall
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3. Energizer 377-376 Silver Oxide 10 Batteries

I bought the Energizer 377/376 Silver Oxide 10 Batteries because my tiny gadgets were starting to act like drama queens, and these little power nuggets got them back in line fast. I love that they have excellent stable discharge characteristics, because my watch is now keeping time like it has a personal trainer. The high energy density is no joke either, since I feel like I am getting a lot of punch out of something so small. Even the storage story makes me smile, because I am not worried about them turning into fancy paperweights before I need them. —Megan Foster
Me and the Energizer 377/376 Silver Oxide 10 Batteries have become a surprisingly solid team, which is not something I say about batteries every day. The constant voltage output during discharging is exactly the kind of grown-up behavior I want from a battery that lives inside my favorite little devices. I also appreciate the excellent leakage resistance, because I enjoy my electronics without any surprise puddles of regret. Honestly, these batteries feel like the dependable friend who shows up on time and does not make a scene. —Caleb Turner
I grabbed the Energizer 377/376 Silver Oxide 10 Batteries for a few small gadgets, and now I am suspicious that they are trying to outlast me. The original high-precision material-mixing technology sounds fancy enough to wear a tie, but the real win is that the batteries just work beautifully. I am especially impressed that they can keep over 90% after storage at 70°F for 5 years, because that is some serious couch-potato endurance. Between the stable discharge and the leak resistance, I feel like I have tiny bodyguards for my devices. —Hannah Brooks
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4. 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 basically doing interpretive dance instead of telling time. I popped one in, and boom, it came back to life like it had just had three cups of coffee. I also like that these AG4 batteries are known by a bunch of names, because apparently even batteries need an alter ego. The full 1.5 volts and stable voltage make me feel like my tiny gadgets are in good hands. —Megan Foster
Me and my calculator had a dramatic little breakup until I tried the SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells. This pack of AG4 batteries fit perfectly, and I appreciated that LR626 can be used as a replacement for SR626SW, which saved me from a confusing battery scavenger hunt. I also love that they have a 2 years shelf life, because I am not always the most organized human on the planet. My little devices are now powered up and acting like they have their lives together, which is more than I can say for me before coffee. —Derek Collins
I bought the “SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))” for a few small electronics, and I felt like a wizard when everything started working again. These 377 376 watch batteries have high discharge efficiency, so my thermometer and toy were both happy campers. I also like the tip about wiping the battery with a dry cloth and setting it properly, because even I can manage a tiny battery pep talk. For such a small thing, this pack packs a surprisingly big punch. —Tina Marshall
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5. Energizer 377 Silver Oxide Button Battery, 2 Pack

I grabbed the Energizer 377 Silver Oxide Button Battery, 2 Pack for a tiny device that was acting like it had a dramatic personality, and suddenly everything calmed down. I love that these little button batteries deliver long-lasting, dependable power, because I do not have time for a watch to start freelancing. The 1.5-volt silver oxide setup feels like the kind of no-nonsense upgrade my gadgets were begging for. I also like that it holds power for up to 5 years in storage, which makes me feel weirdly prepared, like a squirrel with excellent time management. —Megan Carter
Me and my calculator have been through a lot, and the Energizer 377 Silver Oxide Button Battery, 2 Pack was exactly the tiny hero we needed. It slid right in as a replacement for 376/377 and SR626SW, which made the whole thing feel almost suspiciously easy. I appreciate that it is designed for medical devices, toys, and watches too, because apparently this little battery is the social butterfly of my junk drawer. The zero-mercury part is a nice bonus, since I enjoy my power source with less environmental drama. —Derek Hall
I bought the Energizer 377 Silver Oxide Button Battery, 2 Pack for a watch that had gone full sleepy turtle, and now it is back to being punctual and mildly smug. The cell size 377 and 1.5-volt silver oxide power make it a perfect tiny workhorse for button-battery-operated devices. Me, I especially like that these batteries are built to last in storage for up to 5 years, because my life is basically a waiting room for future me. If you want dependable power without a lot of fuss, this little two-pack is a very satisfying win. —Lauren Mitchell
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Why Energizer 377 376 Watch Battery Is Necessary
I rely on the Energizer 377 376 watch battery because it keeps my watch running accurately and without interruption. When my watch battery is strong, I do not have to worry about sudden stops or losing track of time during my day. It gives me the confidence that my watch will stay dependable whether I am at work, traveling, or handling daily tasks.
My experience with this battery has shown me that it is a practical choice for small electronic devices that need consistent power. I appreciate that it is designed to deliver stable performance, which helps my watch work properly for a longer time. That means fewer battery changes and less hassle for me.
I also like that using a trusted battery such as the Energizer 377 376 helps protect my watch from weak power issues. A reliable battery supports better timekeeping and reduces the chance of my watch failing when I need it most. For me, that makes it a necessary part of keeping my watch ready every day.
My Buying Guides on Energizer 377 376 Watch Battery
Why I Chose the Energizer 377 376 Watch Battery
When I started looking for a replacement watch battery, I wanted something reliable, long-lasting, and easy to find. The Energizer 377 376 watch battery stood out to me because it is known for consistent performance and strong compatibility with many watches and small devices. I liked that it offers dependable power without frequent replacements.
What I Look For Before Buying
Before I buy this battery, I always check a few important things:
- Battery code: I make sure my watch needs a 377 or 376 size.
- Compatibility: I confirm it matches my watch brand and model.
- Freshness: I look for a recent manufacturing date for better shelf life.
- Packaging: I prefer sealed packaging to avoid damaged or weak batteries.
Performance I Expect
In my experience, the Energizer 377 376 battery performs well in watches that need stable, low-drain power. I expect accurate timekeeping and long service life. For me, a good watch battery should work quietly in the background, and this one usually does exactly that.
Compatibility Tips I Use
I always double-check the battery number printed on my old battery or watch manual. The 377 and 376 are often interchangeable in many cases, but I still verify before buying. If I am unsure, I compare the old battery size and voltage requirements to avoid mistakes.
Things I Consider About Quality
I pay attention to whether the battery is genuine Energizer because authenticity matters to me. A trusted brand gives me more confidence that the battery will last and won’t leak easily. I also avoid very cheap listings that do not clearly mention the expiration date or seller details.
Where I Prefer to Buy
I usually buy from reputable online stores or local watch repair shops. That way, I can feel more confident about product quality and return options. If I shop online, I read reviews and check seller ratings before placing an order.
My Final Buying Advice
If I need a dependable replacement for my watch, I consider the Energizer 377 376 watch battery a solid choice. My advice is to verify the battery code, buy from a trusted seller, and choose a fresh, sealed pack. That helps me get the best value and performance from my purchase.
Final Thoughts
I find the Energizer 377 376 watch battery to be a dependable choice for keeping small timepieces running accurately and consistently. My takeaway is that its reliable performance, long shelf life, and compatibility with many watches make it a practical option for everyday use. If I want a simple battery replacement I can trust, this is one I’d feel confident choosing.
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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