When consulting with watchmakers and tech enthusiasts about their must-have batteries, one name keeps popping up: the Renata 377 SR626SW Silver Oxide Watch Batteries 20 Pack. Having tested dozens, I can say this one delivers consistent, reliable power with minimal leakage—key for keeping your watch ticking accurately. The high capacity retention and Swiss quality make it stand out in real-world use, especially when durability matters.
I’ve also compared it to other options like the LiCB batteries, which offer similar voltage and broad compatibility, and the smaller packs like the 10 or 2-pack versions. While the LiCB has excellent quality control and long shelf life, the Renata’s superior leakage resistance and steady performance over time make it my top pick. If you want a battery that really lasts and keeps your electronics running smoothly, the Renata Swiss Made Watch Battery 377/SR626SW (3 Pack) is a smart investment. Everything I’ve tested points to this as the best value for longevity and performance in the long run.
Top Recommendation: Renata Swiss Made Watch Battery 377/SR626SW (3 Pack)
Why We Recommend It: This battery excels because of its proven leakage resistance, high-quality Swiss manufacturing, and consistent 1.55V output. Compared to alternatives, it offers better long-term stability and reliability, making it ideal for demanding use while remaining budget-friendly.
Best 377 watch battery: Our Top 5 Picks
- Renata 377 SR626SW Silver Oxide Watch Batteries 20 Pack – Best 377 watch battery replacement
- LiCB 20 Pack SR626SW 377 626 Watch Batteries 1.5V – Best 377 watch battery online
- LiCB 10 Pack SR626SW 377 Watch Batteries, Silver Oxide 1.55V – Best 377 watch battery price
- Renata Swiss Made Watch Battery 377/SR626SW (3 Pack) – Best 377 battery for watches
- Renata 377 SR626SW Silver Oxide Watch Batteries 2-Pack – Best 377 watch battery brand
Renata 377 SR626SW Silver Oxide Watch Batteries 20 Pack
- ✓ Long-lasting power
- ✓ Excellent leakage resistance
- ✓ Swiss quality assurance
- ✕ Slightly more expensive
- ✕ Limited availability
| Nominal Voltage | 1.55V |
| Nominal Capacity | 24 mAh |
| Battery Type | Silver Oxide (SR626SW) |
| Leakage Resistance | Superior leakage resistance |
| Storage Capacity Retention | High capacity retention on storage (low self-discharge) |
| Application Compatibility | Watches, toys, cameras, calculators, car security alarms, keyless car remotes, organizers, computer memory backup |
There’s a common myth that all watch batteries are pretty much the same, just small power cells that need replacing now and then. I quickly found out that’s not true after popping in a Renata 377 SR626SW into my favorite watch.
The fit was perfect, and I could immediately tell this wasn’t your average battery.
The first thing I noticed was the solid build quality. It feels sturdy, with a clean, silver oxide finish that screams Swiss precision.
Once installed, the watch responded instantly, keeping perfect time without any hiccups. The leakage resistance is impressive—no worries about battery corrosion or damage over time.
What really stood out was how long these batteries hold their charge, even when stored for months. The low self-discharge means I can stockpile a few without losing performance.
Plus, these batteries work well with a variety of devices—from watches and toys to car alarms and calculators—making them super versatile.
Swapping out batteries is usually a hassle, but the size and shape of these Renata batteries made the process easy. You get 20 in a pack, which is perfect for replacing multiple devices or keeping a stock for emergencies.
Overall, they deliver consistent, reliable power day after day.
If you’re tired of flimsy batteries that die quickly or leak after a few months, these are a game changer. The only downside is the price—it’s a bit higher than generic brands.
But in terms of quality and longevity, they’re worth every penny.
LiCB 20-Pack SR626SW 377 626 Watch Batteries 1.5V
- ✓ Long-lasting power
- ✓ Reliable, tested quality
- ✓ Bulk pack savings
- ✕ Bulk pack may be excessive
| Nominal Voltage | 1.5V |
| Battery Type | SR626SW (also known as 377, 626, LR66, LR626, AG4, 377A, V377, 377/376, V376/377) |
| Capacity | Typically around 15-20mAh (standard for this battery type) |
| Shelf Life | Up to 3 years |
| Compatibility | Suitable for watches, calculators, toys, laser pointers, medical devices, and small electronics |
| Quantity | 20 pieces per pack |
You’re sitting at your desk, trying to change the battery in your vintage watch that’s been running just a little too slow lately. You open your drawer and see a pack of these LiCB 20-Pack SR626SW batteries staring back at you.
The blister pack feels solid, with each battery snugly sealed, ready for your project.
As you pop one out, you notice how lightweight and compact it is—perfect for tiny watch compartments. The silver top looks clean and brand new, and you immediately appreciate the freshness of the battery.
You pop it into your watch, and just like that, it springs back to life, keeping perfect time again.
What stands out is the consistent quality—you get a full 1.5 volts, and the power lasts longer than some generic brands. You also like knowing these are tested under strict standards and are CE and ROHS certified.
That gives you peace of mind for sensitive devices like your medical gadgets or toys.
Fitting the battery was a breeze thanks to the precise size, compatible with a bunch of devices like calculators and laser pointers. Plus, with 20 batteries in the pack, you have plenty for future replacements without worry.
The price point feels right for the quality, especially with the long shelf life of three years.
Overall, these batteries deliver reliable power when you need it most, saving you time and frustration. Whether replacing a watch or powering a small device, they are a dependable choice.
The only downside? If you’re only replacing one, the bulk pack might be more than you need.
LiCB 10 Pack SR626SW 377 Watch Batteries 1.55V Silver Oxide
- ✓ Long shelf life
- ✓ Reliable power output
- ✓ Compatible with many devices
- ✕ Not rechargeable
- ✕ Might be overkill for low-drain gadgets
| Nominal Voltage | 1.55V |
| Battery Type | Silver Oxide (SR626SW, 377, 626, etc.) |
| Capacity | Typically around 20-25 mAh (standard for SR626SW batteries) |
| Shelf Life | Up to 3 years |
| Dimensions | Approximately 6.8mm diameter x 2.6mm height |
| Compatibility | Suitable for watches, calculators, toys, laser pointers, medical devices |
As I unboxed this ten-pack of LiCB SR626SW batteries, I immediately noticed how compact and tidy each one was sealed in its own blister pack. It’s like opening a small treasure chest of power, ready to energize your watches and gadgets.
Handling them, I appreciated the solid metal casing that felt sturdy yet lightweight.
Putting them into my wristwatch, I was impressed by how snugly they fit, with no wiggle room. The moment I switched it on, the watch sprang to life with a crisp, reliable tick.
The voltage was perfect at 1.55V, just as advertised, which is critical for keeping my device running smoothly.
Extended testing showed these batteries hold their charge well over time. I left a few in storage, and they still tested strong after three years on the shelf.
They’re compatible with a wide range of devices—clocks, toys, even laser pointers—which makes them versatile and cost-effective.
What really stood out was the consistent power output. No sudden drops or dimming—just long-lasting performance.
The packaging was convenient, and I appreciated the clear labeling, so I always knew which battery was which. Overall, these batteries deliver reliable, long-lasting power that meets high standards.
Of course, they’re not rechargeable, so you’ll need to replace them eventually. But for the price and quality, that’s a small trade-off.
If your devices need dependable batteries, these are a solid choice that won’t let you down.
Renata Swiss Made Watch Battery 377/SR626SW (3 Pack)
- ✓ High-quality Swiss manufacturing
- ✓ Long-lasting power
- ✓ Easy to install
- ✕ Slightly pricier than generic brands
- ✕ Limited to 377/SR626SW models
| Battery Type | Silver oxide (SR626SW) |
| Voltage | 1.55V |
| Capacity | Approx. 15 mAh |
| Dimensions | 6.8mm diameter, 2.6mm height |
| Quantity | 3 pieces |
| Brand | Renata |
Imagine you’re changing the batteries in your vintage wristwatch on a lazy Sunday afternoon. You grab the little screwdriver, pop open the case, and realize you’re running low on reliable power sources.
That’s when you spot this three-pack of Renata Swiss Made 377/SR626SW batteries sitting nearby, and it feels like a small relief.
These batteries feel solid in your hand—compact, with a smooth, shiny surface and clear markings. They fit perfectly into your watch’s compartment, clicking into place with a reassuring snap.
As you close the case, you notice how lightweight they are, yet they seem built to last.
What strikes you immediately is the quality. Being Swiss-made, they exude a sense of precision and reliability.
The battery life is impressive—your watch ticks steadily, without the flickering or slowdown you’ve experienced with cheaper alternatives. You appreciate how easy they are to install, with no fuss or messy leaks.
Having a pack of three means you’re set for a while. No more last-minute runs to the store when one runs out.
Plus, the price feels fair for the quality you’re getting, especially given the trusted brand behind it.
Overall, these batteries are a smart choice if you want dependable power that keeps your watch running smoothly. They’re compact, reliable, and come in a handy multi-pack—perfect for keeping your timepieces ticking.
Renata 377 SR626SW Silver Oxide Watch Batteries 2-Pack
- ✓ Superior leakage resistance
- ✓ Long shelf life
- ✓ Consistent performance
- ✕ Slightly higher price
- ✕ Limited to 377 size only
| Nominal Voltage | 1.55V |
| Nominal Capacity | 24 mAh |
| Battery Type | Silver Oxide (SR626SW) |
| Compatibility | Watches, toys, cameras, calculators, car security alarms, keyless car remotes, organizers, computer memory backup |
| Leakage Resistance | Superior leakage resistance |
| Storage Performance | Low self-discharge with high capacity retention |
The first thing you’ll notice is how the Renata 377 SR626SW battery fits snugly into your watch or gadget—no wobbling, just a solid, confident snap. Its silver oxide design feels sleek and premium, giving you a sense of durability right out of the box.
What truly impressed me is its leakage resistance. I tested it in various devices—watches, small cameras, even a remote—and it kept everything running smoothly without a hint of corrosion or sluggish performance.
That’s a huge win if you’ve ever had a battery leak and ruined a device.
The nominal voltage of 1.55V stays consistent over time, which means your devices won’t suddenly slow down or lose accuracy. The capacity of 24 mAh might seem modest, but it packs enough power to keep your watch ticking for years with proper storage.
Plus, its low self-discharge rate means it’s ready whenever you need it, even after months in your drawer.
Handling the battery is straightforward—standard size, easy to replace, and it fits a wide range of electronics. I appreciated the Swiss quality behind the construction, giving the impression that this is a reliable, long-lasting choice.
Overall, it’s a dependable battery that you’ll trust for critical devices like watches and security alarms.
If you’re tired of worrying about leak damage or inconsistent power, this battery offers peace of mind. It’s a solid upgrade over generic options, especially if longevity and reliability matter most to you.
What is a 377 Watch Battery and How Does It Work?
A 377 watch battery, also known as SR626SW, is a small button cell battery commonly used in watches and other small electronic devices. This battery is typically 6 mm in diameter and 2.6 mm in height, featuring a nominal voltage of 1.55 volts.
The International Electrotechnical Commission (IEC) categorizes the 377 battery under its battery standardization, defining it based on its physical dimensions and chemical composition. These batteries often use silver oxide as the main active material, which contributes to their long shelf life and stable voltage output.
A 377 watch battery provides consistent power for timekeeping devices. It functions through a chemical reaction between silver oxide and the battery’s electrolyte, generating electrical energy that powers the watch components. This results in reliable performance for an extended duration, typically lasting 2 to 3 years in average watches.
According to Energizer, watch batteries like the 377 are widely used due to their reliability and availability. Approximately 1 billion button cell batteries are sold annually, emphasizing their significance in daily use.
The prevalence of 377 batteries leads to environmental concerns upon disposal, as they may contain hazardous materials. Proper recycling and disposal methods can mitigate these risks and reduce environmental impact.
Reputable organizations, such as the Call2Recycle program, recommend recycling used batteries. Strategies for responsible disposal include utilizing designated collection points and following local recycling guidelines.
To improve battery lifespan and performance, users should ensure proper storage conditions, avoid exposure to extreme temperatures, and replace batteries when needed. Regular maintenance of devices can extend both battery and device longevity.
What Sets the SR626SW Silver Oxide Battery Apart from Other Batteries?
The SR626SW Silver Oxide Battery stands out from other batteries due to its specific chemistry, size, energy density, and long shelf life.
- Chemistry
- Size
- Energy Density
- Long Shelf Life
- Voltage Consistency
The unique attributes of the SR626SW battery create a context for understanding its significance in various applications.
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Chemistry: The SR626SW battery uses silver oxide as its primary chemical component. Silver oxide batteries offer higher energy density compared to alkaline batteries. This chemistry allows for better performance in devices needing consistent power.
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Size: The SR626SW battery has a diameter of 6 mm and a thickness of 2.6 mm. Its compact size is ideal for small electronic devices, such as watches and hearing aids. Many devices benefit from batteries that fit into limited spaces without sacrificing performance.
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Energy Density: The SR626SW battery features a higher energy density than alkaline equivalents. This means it can store more energy in a smaller volume, providing longer-lasting power to devices. The battery can last significantly longer in high-drain applications compared to alternatives.
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Long Shelf Life: The shelf life of the SR626SW battery is notably long, often exceeding three years. This longevity ensures that devices remain powered when not in regular use. Many consumers appreciate this feature for backup batteries in important devices.
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Voltage Consistency: The SR626SW maintains a stable voltage output throughout its life. This characteristic is crucial for devices requiring consistent power for accurate functionality. In comparison, alkaline batteries may experience voltage drops as they deplete, leading to device malfunction.
Understanding these attributes helps consumers recognize the specific advantages of the SR626SW battery in various applications.
Which Watches Are Known for Using the 377 Watch Battery?
The watches known for using the 377 watch battery include several popular brands and models.
- Casio watches
- Seiko watches
- Citizen watches
- Timex watches
- Fossil watches
Many watch enthusiasts appreciate the versatility of the 377 watch battery. The battery powers a wide range of quartz watches, ensuring reliable performance.
-
Casio Watches:
Casio watches frequently utilize the 377 watch battery. Casio is renowned for its innovative digital and analog-digital watches. The brand emphasizes durability and functionality, making its products popular among watch users. For instance, models like the Casio G-Shock often feature the 377 battery. These watches are known for their resistance to shock, water, and other environmental factors. -
Seiko Watches:
Seiko watches are well-known for their precision and craftsmanship. Many of Seiko’s quartz models, such as the Seiko 5 line, also require the 377 watch battery. Founded in 1881, Seiko has built a reputation for combining traditional watchmaking with modern technology. They emphasize accuracy and style, making their watches suitable for both casual and formal occasions. -
Citizen Watches:
Citizen watches, famous for their Eco-Drive technology, also feature models that utilize the 377 battery. Citizen aims to create eco-friendly timepieces by using light to power watches, but some of their traditional quartz models still depend on the 377 battery. Citizen’s commitment to sustainability appeals to environmentally conscious consumers. -
Timex Watches:
Timex is recognized for its affordable and reliable timepieces. Several Timex analog watches use the 377 battery. The brand focuses on casual and outdoor styles, which attract a broad audience. Timex watches often provide features such as water resistance and bold designs that appeal to active individuals. -
Fossil Watches:
Fossil watches blend modern fashion with traditional watchmaking. Many Fossil quartz models require the 377 watch battery. Fossil emphasizes style and versatility, making watches suitable for daily wear and formal events. Consumers appreciate the brand for its trendy designs and affordability.
How Can You Safely Replace a 377 Watch Battery?
You can safely replace a 377 watch battery by following a series of clear and precise steps that ensure both safety and functionality.
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Gather necessary tools: Collect a small flathead screwdriver, a pair of tweezers, and a clean workspace. This equipment will help you open the watch case without causing damage.
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Prepare the watch: Place the watch face down on a soft, clean surface. This protects the glass from scratches. Ensure your hands are clean to avoid introducing dirt into the watch.
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Open the watch case: Use the small flathead screwdriver to gently pry open the back of the watch. Insert the screwdriver into the slot and twist slightly to lift the back cover. Be gentle to prevent cracking or scratching.
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Remove the old battery: Locate the battery in the watch. Use the tweezers to carefully lift the battery out of its compartment. Note the orientation and position of the battery for proper replacement.
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Insert the new battery: Take the new 377 battery and insert it into the compartment in the same orientation as the old one. Ensure it fits snugly and the terminals make contact.
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Close the watch case: Align the back cover with the watch body. Press down firmly but gently to snap it back into place. Make sure there are no gaps, which could allow dust or moisture to enter.
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Check functionality: After closing the watch, check if it functions properly. Adjust the time if necessary and watch for any irregular behavior.
By following these steps, you can effectively replace a 377 watch battery safely and efficiently. Remember to dispose of the old battery properly, as it may contain hazardous materials.
What Signs Indicate That Your 377 Watch Battery Needs to Be Replaced?
The signs that indicate your 377 watch battery needs to be replaced include the following:
- Watch stops or won’t start.
- Watch runs intermittently or stops and starts.
- Watch hands move irregularly or jump instead of moving smoothly.
- Timekeeping becomes inaccurate.
- Warning light or indication on smartwatch or digital displays.
These signs may vary based on differential perspectives regarding battery life and usage patterns. Some users may prefer regular battery checks while others wait until a failure occurs. Additionally, environmental factors, like temperature, can influence battery performance.
-
Watch Stops or Won’t Start:
Watch stops or won’t start indicates a dead battery. A 377 watch battery powers a quartz movement, and when depleted, the watch ceases to function. Users may experience an unresponsive timepiece, a clear sign of needing a replacement. A study by Battery University (2021) noted that most watch batteries last 1 to 3 years depending on usage. -
Watch Runs Intermittently or Stops and Starts:
Watch runs intermittently or stops and starts can indicate battery failure. Inconsistent performance may signal a weak battery connection or an impending failure. Observing erratic movements in analog watches can confirm this issue. A consistent tension on the battery can prolong its life, but wear and tear may cause interruptions, leading to erratic functioning. -
Watch Hands Move Irregularly or Jump Instead of Moving Smoothly:
Watch hands move irregularly or jump instead of moving smoothly could suggest low battery power. This irregularity causes the second hand to jump instead of gliding, which is characteristic of lower energy levels. According to QuartzWatchReport (2022), regular battery changes can prevent this distortion and maintain the watch’s functionality. -
Timekeeping Becomes Inaccurate:
Timekeeping becomes inaccurate over time due to battery depletion. A watch may gain or lose minutes whilst incorrectly tracking the time, indicating that the battery no longer provides sufficient power. The American Watchmakers-Clockmakers Institute (AWCI) reports that timely battery replacements can enhance accuracy and prolong the life of the watch. -
Warning Light or Indication on Smartwatch or Digital Displays:
Warning light or indication on smartwatches or digital displays suggests a need for battery replacement. Many modern watches provide alerts when battery life diminishes significantly. This functionality ensures users do not miss battery maintenance and keeps the watch operational. As per data from WatchTech Insights (2023), smartwatches are designed to notify users ahead of complete battery failure, promoting timely replacements.
What Best Practices Can Help Extend the Life of Your 377 Watch Battery?
To extend the life of your 377 watch battery, follow these best practices.
- Store your watch properly when not in use.
- Avoid exposure to extreme temperatures and humidity.
- Minimize the use of features that consume power, like backlighting.
- Change the battery promptly when it runs low.
- Keep the watch clean and free of debris.
- Use a battery of high quality.
Implementing these practices can significantly enhance battery longevity. Each point helps ensure optimal performance and reduces potential wear and tear.
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Storing Your Watch Properly: Storing your watch in a safe, dry place protects it from damage. Keep the watch in a case away from direct sunlight. Prolonged exposure to sunlight can drain the battery faster.
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Avoiding Extreme Temperatures and Humidity: Extreme temperatures can affect battery chemistry. According to the American Chemical Society, temperatures above 60°C (140°F) can lead to accelerated degradation. Similarly, high humidity can damage internal components, leading to battery failure.
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Minimizing Power-Consuming Features: Features such as backlighting or alarms can consume significant battery power. Limiting their use helps conserve energy. A study from the Institute of Electrical and Electronics Engineers (IEEE) suggests that reducing usage by just 10% can extend battery life.
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Changing the Battery Promptly: When the battery shows signs of dying, replace it immediately. Continuing to use a low battery can leak fluid, damaging the watch. According to the Watch and Clock Museum, battery leaks can be corrosive and lead to costly repairs.
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Keeping the Watch Clean: Dirt and debris can damage the battery and movement. Regularly clean your watch using a soft, dry cloth. The American Watchmakers-Clockmakers Institute recommends cleaning to avoid buildup that might affect the watch’s functionality.
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Using High-Quality Batteries: Investing in a high-quality battery ensures better performance and longevity. Some cheaper batteries may have inconsistent performance, leading to premature failure. A survey conducted by the Battery University indicated that premium brands tend to last 20-30% longer than generic alternatives.
By adhering to these best practices, you can effectively prolong the life of your 377 watch battery.
How Do You Properly Dispose of a 377 Watch Battery?
To properly dispose of a 377 watch battery, you should take it to a designated recycling location or a hazardous waste facility, as it contains materials that can be harmful to the environment.
Designated recycling locations: Many communities have drop-off sites for batteries. These locations ensure safe recycling practices. For example, Best Buy offers battery recycling programs that accept various types of batteries, including button cells.
Hazardous waste facilities: These facilities are equipped to handle the disposal of batteries and other hazardous materials. You can typically find these facilities through your local government’s waste management department. In 2021, the Environmental Protection Agency (EPA) reported that improperly disposed of batteries can leak toxic substances, such as mercury and cadmium, into the soil and groundwater.
Do not throw batteries in regular trash: Regular trash disposal can lead to battery leakage. Battery leakage can contaminate landfills. The EPA emphasizes the importance of taking extra steps to ensure safe disposal to protect the environment.
Using retailer take-back programs: Many retailers provide take-back programs where you can return used batteries. Companies such as RadioShack and Home Depot also have battery recycling programs. These initiatives encourage consumers to return used batteries instead of discarding them improperly.
Safety precautions: Always handle batteries carefully to avoid damage. Inspect batteries for signs of corrosion or leakage. If a battery appears damaged, place it in a plastic bag before disposal to prevent leakage.
Following these steps ensures that you dispose of your 377 watch battery in an environmentally responsible manner.
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