10 Best 377A Watch Battery in 2026

Finding the right power source for your precision timepiece is essential for long-term reliability. The 377A watch battery is a critical component for many quartz movements and small electronics. Choosing a high-quality cell ensures accurate timekeeping and prevents messy leaks.

We analyzed ten top-rated products available today based on user feedback and technical specifications. Each option offers different chemistry types like silver oxide and alkaline to suit various needs. Our comparison highlights performance, shelf life, and compatibility across different device models.

Every product entry includes key specs, real user ratings, and direct links to verified listings. Prices and availability can change rapidly so always check the current status before buying. Use this guide to find the perfect match for your watch or gadget.

Top 3 Picks for Best 377A Watch Battery

Top 10 Best 377A Watch Battery in 2026 Compared

This side-by-side comparison helps you quickly evaluate the top ten options available in the market. We focus on key specifications, compatibility, and overall value to streamline your decision process.

1. LiCB 10 Pack SR626SW 377 Watch Battery – Best Overall 377A Watch Battery

4.7Editor scoreCheck price on Amazon

LiCB 10 Pack SR626SW 377 Watch Battery

Model: SR626SW 1.55V

Shelf Life: 3 Years

Chemistry: Silver Oxide

Leak Proof: Yes

This LiCB SR626SW 377 battery pack is our top pick for reliability and performance. With a solid 4.7 rating from users, it delivers consistent power for watches and small electronics. The silver oxide chemistry ensures a stable voltage output which is crucial for precision devices.

Pros

• Excellent battery life
• High quality Grade A cells
• Consistent 1.55V charge
• Great value for 10 pack
• Clear blister packaging

Cons

• Price slightly higher than alkaline
• Not rechargeable

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The batteries are tested under strict quality standards to ensure Grade A performance. Each cell holds a full 1.5 volt charge right out of the package. The three year shelf life means you can store extras for emergencies without worrying about degradation.

While these are not rechargeable, the long lifespan makes up for it. The leak-proof technology protects your watch from damage caused by battery corrosion. This is a vital feature for expensive timepieces where internal damage could be costly.

Buyers looking for trusted performance will appreciate these cells. They fit a wide range of models including 377 and 626. The packaging is convenient for storage. We recommend stocking up when you find them on sale.

Superior Silver Oxide Performance

Silver oxide batteries like these offer better stability and longevity than standard alkaline options. The voltage remains flat throughout the discharge cycle.

Reliable Leak Protection

The anti-corrosion elements in the design prevent dangerous leaks. This keeps your devices safe from potential damage.

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2. TXY 10pcs/Pack AG4 Alkaline Cell Battery – Best Budget 377A Watch Battery

4.6Editor scoreCheck price on Amazon

TXY 10pcs/Pack AG4 Alkaline Cell Battery

Model: AG4 1.55V

Shelf Life: 4 Years

Chemistry: Alkaline

Material: Stainless Steel

The TXY AG4 battery offers an economical solution for casual watch owners and toy users. It holds a 4.6 rating and focuses on longevity and safety features. The alkaline chemistry is a good fit for devices that do not drain power constantly.

Pros

• Affordable price per unit
• Very long storage time
• Stainless steel case
• Mercury-free and safe
• Sealed for safety

Cons

• Alkaline drains faster than silver oxide
• Not for high drain devices

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One standout feature is the low self-discharge rate which allows for up to four years of storage. This is ideal for buying in bulk or keeping spare batteries in a drawer. The stainless steel construction provides a durable seal.

These batteries are free from harmful substances like lead and mercury. This makes them safer for the environment compared to older battery types. The leak-proof technology ensures they remain stable during use.

If you need power for non-critical or low drain applications this pack is a solid choice. The price point is lower than premium silver oxide options. It fits standard models like 377 and 626 perfectly.

Extended Storage Capability

With a four year shelf life these batteries are ready to use whenever you need them. Store them in a cool dry place.

Safe Environmental Design

The mercury-free construction reduces environmental impact. You can dispose of them according to local battery recycling guidelines.

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3. SR626SW Watch Batteries 377 376 LR626 Battery AG4 – Reliable Alkaline Option

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SR626SW Watch Batteries 377 376 LR626 Battery AG4

Model: AG4 1.5V

Shelf Life: 2 Years

Chemistry: Alkaline

Voltage: Stable

These AG4 batteries are known for their stable voltage and high discharge efficiency. They are designed to protect your devices from power spikes or irregularities. Users give them a strong 4.7 rating for their consistency.

Pros

• High discharge efficiency
• Stable voltage output
• Protects equipment well
• Widely compatible models
• Clear packaging instructions

Cons

• Shorter shelf life than others
• Alkaline type limitations

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The two year shelf life is reasonable for regular use. They are suitable for watches, clocks, and small electronics like calculators. The package includes ten cells which is convenient for replacement cycles.

Users are advised to wipe the battery with a dry cloth before installation. This helps ensure good contact and prevents corrosion. Keep them in a cool dry place to maintain freshness.

For standard low drain gadgets these provide reliable power at a good price. The clear labeling helps avoid installation errors. They are a practical choice for everyday needs.

Stable Voltage Output

The batteries maintain a steady voltage to ensure your watch runs accurately. This reduces the risk of time drift.

Practical Packaging

The blister pack keeps the cells organized and safe from physical damage. Clear labels make it easy to identify polarity.

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4. Energizer 377/376 Watch Batteries – Trusted Brand Choice

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Energizer 377/376 Watch Batteries (Pack of 5)

Type: Button cell

Voltage: 1.55V

Replaces SR626SW

Pack Size: 5

Energizer is a household name in the battery industry. This pack of five is perfect if you need a quick replacement for your watch. The 4.7 rating reflects the quality users expect from this brand.

Pros

• Trusted Energizer brand
• High user ratings
• Perfect for 376/377
• Standard button cell design
• Easy to find

Cons

• Smaller pack size
• Higher price per cell

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The batteries are designed specifically to replace SR626SW and similar models. They fit snugly and provide reliable power. The compact packaging makes them easy to store.

Users appreciate the familiarity of the Energizer brand. It offers peace of mind regarding performance. The small pack size is handy for keeping in a drawer.

Buy these when you need a known quantity without shopping around. They are great for single replacements. Check the date before use.

Brand Reliability

Energizer products undergo rigorous testing to ensure safety and performance. You can trust them for critical devices.

Perfect Fit

The dimensions are exact for 377 and 376 slots. No loose fitting or poor contact.

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5. LOOPACELL 377/376 / SR626W / SR626SW – Long Lasting Silver Oxide

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LOOPACELL 377/376 / SR626W / SR626SW

Chemistry: Silver Oxide

Voltage: 1.55V

Leak-proof technology

Pack Size: 5

This LOOPACELL pack focuses on silver oxide performance for extended life. The batteries are pre-charged and ready to use. A 4.6 rating shows users find them dependable for everyday tasks.

Pros

• Advanced silver oxide chemistry
• Leak proof design
• Ready to use charge
• Versatile device support
• Quality manufacturing

Cons

• Small pack size
• Mid range pricing

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The leak proof technology is a major benefit for protecting watches. It ensures a stable power supply for years to come. The packaging is easy to open without tools.

They work well with a wide variety of devices including remotes and toys. The anti-corrosion elements add to the durability. Emergency ready power is a key promise.

Buyers looking for a balance of quality and price will like this option. It suits watches and toys equally well. Keep extras on hand.

Ready to Use Power

The batteries arrive with full charge and require no preparation. Just insert them and start using the device.

Anti-Corrosion Safety

Special elements prevent the battery from leaking over time. This protects your valuable watch interior.

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6. 10pcs 1.5V AG4 LR626 Alkaline Button Battery – Compact Pack

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10pcs 1.5V AG4 LR626 Alkaline Button Battery

Model: AG4 1.5V

Diameter: 6.8mm

High energy density

Pack Size: 10

These AG4 batteries offer continuous power with a high energy density. The 4.7 rating reflects user satisfaction with their performance. They are a standard size that fits most quartz watches and gadgets.

Pros

• Excellent continuous power
• Long lifespan
• High energy density
• Easy storage
• Compatible with many models

Cons

• Handle with care
• Keep dry at all times

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The 6.8mm diameter is standard for these coin cells. Users are advised to store them in a dry and cool place. Avoid touching terminals to prevent short circuits.

The battery is suitable for a wide range of applications. It works for cameras, toys, and remote controls. The instructions warn against exposure to fire.

Get this pack if you need a versatile supply for household electronics. The 10 pack is useful for multiple devices. Keep away from heat sources.

High Energy Density

The compact size holds significant power for small devices. It lasts longer than older alkaline types.

Wide Compatibility

These fit watches calculators and even digital cameras. It is a good multi-purpose option.

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7. LiCB 20 Pack SR626SW 377 626 Watch Battery – Bulk Value

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LiCB 20 Pack SR626SW 377 626 Watch Battery

Model: SR626SW 1.55V

Shelf Life: 3 Years

Grade A cells

Pack Size: 20

This 20 pack extends the reliability of the LiCB brand. You get the same quality as the smaller pack but at a better rate. Users praise the 4.7 rating for consistent power delivery.

Pros

• Great bulk value
• Same reliable quality
• Grade A certified
• Long shelf life
• Consistent performance

Cons

• Large storage footprint
• Only for frequent users

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The three year shelf life means you can use these for long term projects. They are perfect for keeping a stock in a workshop or home office. The blister pack keeps them organized.

Every cell is Grade A to ensure it meets high standards. This reduces the chance of a bad battery in the lot. It is efficient for frequent replacements.

If you maintain multiple watches or have kids with electronic toys this is a great deal. Buy now and save on future purchases. Store carefully.

Bulk Efficiency

Buying in bulk reduces the cost per battery. It saves money over time for active households.

Quality Assurance

The Grade A label ensures every cell works as expected. It minimizes the risk of premature failure.

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8. SKOANBE 10Pack SR626SW 377 LR626 AG4 – Safe Packaging

4.6Editor scoreCheck price on Amazon

SKOANBE 10Pack SR626SW 377 LR626 AG4

Type: 1.5V Watch

Shelf Life: 3 Years

Fresh stock

Pack Size: 10

SKOANBE provides fresh batteries with a focus on safety. The 4.6 rating shows they work well for daily devices. The instructions are clear about not touching terminals to prevent shorts.

Pros

• Safe handling instructions
• Long battery life
• Clear labeling
• Wide compatibility
• Reliable charge

Cons

• Avoid touching terminals
• Standard alkaline chemistry

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Each battery is fresh with a three year shelf life. This ensures you get a good 1.5 volt charge. The pack size is practical for most watch owners.

The wide compatibility helps you match multiple device needs. It is useful for watches and calculators. The battery delivers consistent power.

Buyers who prioritize safety will appreciate the tips on handling. The product is reliable for standard usage. Keep them away from moisture.

Safe Handling Tips

The package warns against direct contact with metal parts. This prevents accidental short circuits.

Fresh Battery Stock

The batteries are stored to maintain freshness. You get full power on installation.

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9. Duracell 377/376 Silver Oxide Button Batteries – Premium Protection

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Duracell 377/376 Silver Oxide Button Batteries

Type: Silver Oxide

Guaranteed: 4 Years

Child-secure packaging

Trusted Brand

Duracell offers top tier protection with this silver oxide option. The 4.7 rating reflects trust in their brand. You get a guarantee that these batteries last in storage for four years.

Pros

• 4 year storage guarantee
• Child-secure design
• Long lasting power
• Highly trusted
• Wide device range

Cons

• Low pack count
• Higher price point

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The child-secure packaging is a vital feature for families. It prevents accidental ingestion or improper use. This design shows attention to safety in every detail.

These batteries are built for reliable performance in high power devices. They work well for digital thermometers and stopwatches. The longevity is unmatched.

If safety and guarantee are your priority choose this option. It is worth the investment for critical devices. Buy from authorized sources.

Safety First Design

The packaging is nearly impossible to open without tools. This protects children from harm.

Storage Guarantee

The four year guarantee means you can buy ahead of time. It stays ready for emergency use.

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10. DURNERGY SR626SW Watch Battery 10 Pack – Anti-Misalignment Design

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DURNERGY SR626SW Watch Battery 10 Pack

Type: AG4 Alkaline

Sealed steel case

Temp range: -4 to 140 F

Pack Size: 10

DURNERGY brings a clever design for battery removal. The 4.7 rating shows users like the practicality. Each battery is cut along a dotted line to prevent misplacement.

Pros

• Easy removal design
• Wide temperature range
• Sealed case for safety
• Stable voltage
• Eco-friendly materials

Cons

• Alkaline drains faster
• Not rechargeable

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The temperature range is very wide which suits diverse climates. The steel case prevents leaks effectively. The battery remains stable during discharge cycles.

Materials are eco-friendly without lead or mercury. You can dispose of them safely. The pinching instructions help avoid short circuits.

Get this pack if you value easy storage and removal. It is great for keeping in a drawer. Use as needed for small electronics.

Anti-Misalignment Feature

The cut lines allow you to use one battery at a time. Others stay secure until needed.

Environmental Safety

Free from harmful substances like mercury. It is safe for standard disposal.

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Buying Guide – How to Choose the Best 377A Watch Battery

Choosing the right watch battery involves understanding chemistry, shelf life, and compatibility. This guide covers the key factors to ensure you get reliable power for your device.

Chemistry Type

The most important factor is the chemistry. Silver oxide batteries offer better voltage stability and longer life compared to alkaline. They are best for quartz watches that need precision. Alkaline cells are cheaper but may drain faster in high demand apps.

Always check if your device recommends silver oxide for best performance. Most 377 models work better with silver oxide than alkaline.

Shelf Life

Battery storage life varies from two to four years. If you plan to stock up, look for the longer shelf life options. This ensures the batteries are fresh when you need them. Store them in a cool dry place to maximize this time.

Prioritize packages that guarantee a longer storage period to avoid wasting money on old stock.

Compatibility

The 377A is known by many names including SR626SW and AG4. Ensure the package lists all these model numbers. This helps you confirm it fits your specific device. A wrong fit can damage your watch or lead to leaks.

Check the device manual or old battery markings before buying to confirm the exact code.

Brand Reputation

Well known brands often provide consistent quality and testing. Trusted names like Duracell and Energizer have proven track records. However, newer brands offer good value with similar specs. Always read user reviews for real world insights.

Stick to brands with positive feedback on longevity and safety.

Pack Size

Batteries come in packs of 2, 5, 10, or 20. Buy a larger pack if you use multiple devices. This lowers the cost per unit. If you only have one watch, a smaller pack avoids waste.

Consider your usage rate to determine the right pack size.

Safety Features

Look for child-secure packaging and leak-proof technology. These features protect your watch and children from accidental ingestion. Mercury free options are also safer for the environment. This is crucial if you have kids at home.

Safety should not be compromised for a lower price.

How to Use and Care for Your 377A Watch Battery

Always wash and dry your hands before handling the battery. Avoid touching the terminals with your fingers to prevent oils from causing corrosion.

Insert the battery with the positive side up. Most watch backs have a clear diagram. Ensure the battery fits snugly without forcing it.

Keep spare batteries in a cool dry place away from heat. Do not throw them in fire or attempt to recharge them. Dispose of used ones at proper recycling points.

Frequently Asked Questions

Final Thoughts on Choosing the Best 377A Watch Battery