10 Best 377A Watch Battery in 2026

Finding the right 377A watch battery ensures your timepiece runs accurately without unexpected power loss. This guide reviews ten top-rated options known for stability and long life across various devices.

We compared these products based on capacity, shelf life, leak resistance, and user ratings. Each entry highlights key specs and real-world performance to help you choose confidently for your specific needs.

Every pick below shows what makes each battery stand out among competitors. Prices and availability may change, so check current listings before purchasing to ensure you get the best deal today.

Top 3 Picks for Best 377A Watch Battery

Top 10 Best 377A Watch Battery in 2026 Compared

This side-by-side comparison evaluates all ten selected batteries on key technical specs and user feedback. Each entry helps you identify the right power source for your watch or electronic device.

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

Silver Oxide High Capacity

1.55 Volts Stable Output

Three Years Shelf Life

Leak-Proof Technology

LiCB delivers the top rated 377A watch battery in our testing. It combines silver oxide chemistry with strict quality control for reliable performance. This option stands out due to its full 1.55 volt charge and long shelf life.

Pros

• Consistent 1.55 volt output
• High capacity for longer use
• Reliable leak-proof casing
• Certified safe CE ROHS
• Ideal for watches and calculators

Cons

• Price slightly higher than alkaline
• Individual blister pack access

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The high capacity cells ensure your devices run longer without needing frequent swaps. Users appreciate the leak-proof design that protects expensive electronics from corrosion damage. Each pack offers ten fresh units ready for immediate use.

While it costs more than basic alkaline options the longevity justifies the investment. The packaging is secure but requires effort to remove single batteries quickly. Still the safety and reliability outweigh minor handling drawbacks.

Choose LiCB if you prioritize consistent power for critical devices like watches or medical tools. The 10 pack provides excellent value for households needing replacements over time. This remains the safest bet for most users.

Stable Voltage for Sensitive Electronics

The silver oxide chemistry maintains steady voltage until the end of life preventing sudden power drops.

Safe Certified Manufacturing

CE and ROHS certification ensures no harmful substances leak during use or disposal.

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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

AG4 Alkaline Chemistry

Low Self-Discharge Rate

20mAh Capacity Rating

Stainless Steel Sealing

TXY offers the most budget-friendly 377A watch battery without sacrificing basic safety. These alkaline cells provide reliable short-term power for toys and low drain devices. The 4 year low self-discharge rate keeps them fresh until needed.

Pros

• Affordable price per unit
• Low self-discharge for storage
• Mercury-free safe formula
• Effective leak prevention
• Compatible with many devices

Cons

• Lower capacity than silver oxide
• Shorter shelf life

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The stainless steel casing adds durability against accidental drops or moisture. Users note these batteries perform well in casual electronics where longevity is less critical. The mercury-free design meets modern environmental standards.

Expect fewer hours of runtime compared to silver oxide alternatives. If you need high precision voltage this might not be the best fit. But for simple toys or remotes it is a smart cost-saving choice.

Select TXY when you need multiple replacements at low cost. The 10 pack ensures you have spares for different gadgets. It is a practical pick for non-critical applications where battery life is less important.

Extended Storage Capabilities

Low self-discharge allows keeping these batteries in drawers for up to four years before use.

Safe for All Users

Mercury-free composition makes disposal safer and reduces environmental impact significantly.

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3. Duracell 377/376 Silver Oxide Button Batteries – Best Premium 377A Watch Battery

4.7Editor scoreCheck price on Amazon

Duracell 377/376 Silver Oxide Button Batteries

Silver Oxide Core

Four Years Storage Warranty

Child-Secure Packaging

Trusted Brand Reliability

Duracell leads the premium segment with unmatched storage guarantees and brand trust. These silver oxide batteries deliver consistent power for high precision devices. The child-secure design prevents accidental access by young children.

Pros

• Longest guaranteed shelf life
• Industry trusted quality
• Safety focused packaging
• High voltage stability
• Wide device compatibility

Cons

• Limited pack quantity
• Requires scissors to open

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Users rely on Duracell for devices that must not fail unexpectedly. The four year storage warranty ensures batteries work when needed even after long periods of inactivity. Performance remains stable across temperature variations.

The small pack size might mean buying more often than bulk options. The packaging is tough and often needs scissors which can be inconvenient in a hurry. However the peace of mind justifies the effort.

Pick Duracell for critical applications like medical devices or valuable watches. The investment secures reliable performance over many years. This remains the gold standard for safety and consistent power output.

Reliable Long-Term Storage

Guaranteed to hold charge for four years in storage so you can stockpile with confidence.

Safety First Packaging

Child-secure packaging adds a critical safety layer for homes with curious children.

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4. SR626SW Watch Batteries 377 376 LR626 – Reliable Standard Power Option

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SR626SW Watch Batteries 377 376 LR626

Alkaline Coin Cell

Full 1.5 Volt Charge

Two Years Shelf Life

High Discharge Efficiency

This option provides a balanced mix of performance and affordability for everyday electronics. Users note the full 1.5 volt charge ensures devices power on immediately. The two year shelf life suits moderate storage needs.

Pros

• Stable voltage output
• Easy access blister pack
• Low cost per unit
• Compatible with many models
• Clear labeling

Cons

• Two year shelf life shorter
• Standard alkaline limitations

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The blister pack design allows quick extraction without tools. It is ideal for users who replace batteries frequently across multiple toys. The stable voltage protects sensitive circuits from sudden drops during operation.

Lower shelf life means these should be used sooner than premium alternatives. If you buy in bulk you must monitor expiration dates closely. Still it remains a reliable choice for casual users.

Choose this if you need quick replacements for non-critical devices. The pack of ten offers good value for household needs. It is a dependable standard for most common battery replacements.

Immediate Power Readiness

Every cell ships with full charge so devices start functioning instantly upon insertion.

Convenient Packaging Design

Blister packs allow easy access to individual cells without damaging remaining units.

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5. Energizer 377/376 Watch Batteries – Trusted Brand Performance

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Energizer 377/376 Watch Batteries

Premium Silver Oxide

1.55V Output

SR626W Replacement

Compact Packaging

Energizer delivers consistent power backed by decades of battery manufacturing expertise. These units excel in wristwatches where precise voltage matters. The compact packaging is easy to store in drawers.

Pros

• Highly trusted brand
• Stable voltage output
• Compact retail packaging
• Leak resistant design
• Good for watches

Cons

• Small pack quantity
• Higher cost per unit

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Users trust Energizer to avoid leakage issues that could damage devices. The silver oxide chemistry ensures longer runtime than basic alkaline options. It is a strong choice for premium watches.

The pack of five may require repurchasing for larger households. Price per unit is higher than bulk options. However the reliability often offsets the cost difference significantly.

Select Energizer for valuable timepieces or critical electronics. The brand reputation provides confidence in every replacement. It is a solid pick for those prioritizing quality over quantity.

Proven Manufacturing Quality

Energizer standards ensure every battery meets strict performance criteria before sale.

Reliable Wristwatch Power

Designed specifically to meet the demands of high end wristwatches.

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6. LOOPACELL 377/376 Silver Oxide Watch Batteries – Strong Value Alternative

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LOOPACELL 377/376 Silver Oxide Watch Batteries

Silver Oxide Chemistry

Anti-Corrosion Elements

Ready To Use Charge

Five Unit Pack

LOOPACELL focuses on delivering premium quality at accessible prices. The silver oxide core provides reliable long life for various devices. Anti-corrosion elements protect sensitive contacts from long-term damage.

Pros

• Strong value for money
• Leakproof tech included
• Instant power ready
• Wide device compatibility
• Stable output

Cons

• Pack count may be low
• Moderate brand recognition

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These batteries arrive ready for immediate use without waiting for charge. Users appreciate the wide compatibility across watches and small electronics. The pack of five suits single device needs well.

Brand recognition lags behind major names which may cause hesitation. Performance remains comparable to more expensive brands in real use. This makes it an excellent alternative for cost-conscious buyers.

Pick LOOPACELL if you need consistent power at lower cost. The anti-corrosion design extends device life significantly. It is a smart choice for everyday electronic maintenance.

Immediate Power Availability

Every battery arrives with full charge to ensure instant performance upon installation.

Device Protection Features

Anti-corrosion elements shield device terminals from damage due to leakage or humidity.

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7. 10pcs 1.5V AG4 LR626 Alkaline Button Battery – Compact Power Solution

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10pcs 1.5V AG4 LR626 Alkaline Button Battery

1.5 Volt Output

6.8mm Diameter

High Energy Density

Ten Unit Pack

These alkaline batteries offer standard 1.5 volt power for common small electronics. The 6.8mm diameter fits most standard watch battery slots perfectly. High energy density supports moderate runtime needs well.

Pros

• Compact storage size
• Good energy density
• Low unit cost
• Easy to find
• Standard 1.5 volt

Cons

• Alkaline limited life
• Basic packaging

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Ten units provide a practical backup stock for households. Users note they work well in toys and remotes. The simple packaging keeps costs low for bulk purchases.

Runtime will be shorter than premium silver oxide options. Not ideal for watches requiring long-term precision. However it works well for temporary replacements or casual use.

Choose this for non-critical devices needing quick power. The pack size is ideal for family needs. It is a straightforward pick for simple replacement jobs.

Standard Size Compatibility

Fits all standard 377A watch slots with precise 6.8mm diameter fit.

Bulk Household Value

Pack of ten offers good stock for families with multiple electronic toys.

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8. LiCB 20 Pack SR626SW 377 626 Watch Battery – Best Bulk Option

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LiCB 20 Pack SR626SW 377 626 Watch Battery

Twenty Unit Pack

Silver Oxide Core

Three Year Shelf Life

Grade A Cells

LiCB maximizes value with this twenty unit bulk pack. Each battery maintains Grade A quality for consistent long life. The three year shelf life allows for safe storage over extended periods.

Pros

• Best price per unit
• High quality Grade A
• Reliable LiCB brand
• Long shelf life
• Excellent bulk value

Cons

• Large physical volume
• Individual packs needed

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Ideal for offices or large families needing multiple replacements. The silver oxide core ensures better performance than basic alkaline. Users save significantly compared to buying smaller packs separately.

The bulk size requires more storage space at home. Individual batteries are in separate blisters which can be slightly slower to access. However the cost savings outweigh these minor conveniences.

Select this if you need a large supply for future use. It offers the best cost efficiency for LiCB quality. It is the smartest pick for long-term storage.

Maximum Cost Efficiency

Buying in bulk significantly reduces the cost per battery for high usage needs.

Quality Consistency

Grade A cell certification ensures every unit in the pack meets high standards.

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9. SKOANBE 10Pack SR626SW 377 LR626 AG4 – Reliable Standard Choice

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SKOANBE 10Pack SR626SW 377 LR626 AG4

Fresh Battery Charge

Three Year Shelf Life

Multiple Compatibility

Ten Unit Pack

SKOANBE delivers fresh silver oxide batteries with stable voltage. The 10 pack ensures you have enough for multiple watches. Each battery holds charge for three years in storage.

Pros

• Three year shelf life
• Full voltage charge
• Safe handling tips
• Wide compatibility
• Affordable pricing

Cons

• Basic packaging design
• Shorter brand history

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The packaging includes helpful tips to prevent short circuits during handling. Users report reliable performance across calculators and toys. The low cost makes it a common budget favorite.

Packaging is minimal compared to premium brands. Some users prefer more protective individual wrapping. However the functional reliability remains consistent for regular replacements.

Choose this for standard replacements where cost is priority. The three year shelf life offers peace of mind. It is a solid option for everyday electronics.

Safe Handling Guidance

Instructions on avoiding terminal contact protect battery integrity during storage.

Versatile Device Fit

Compatible with SR626SW AG4 and LR626 models for broad usage.

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

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DURNERGY SR626SW Watch Battery 10 Pack

Wide Temp Range

Anti-Misalignment Design

18 Year Expertise

Sealed Steel Case

DURNERGY brings 18 years of experience to battery production. The anti-misalignment design allows removing single units without disturbing others. Wide temperature tolerance ensures performance in varied environments.

Pros

• Anti-misalignment feature
• Wide temperature range
• Industry experience
• Quality testing
• Sealed leak-proof case

Cons

• Newer brand name
• Pack design needs cut

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Each battery is sealed in steel to prevent leaks. Users appreciate the ability to cut along dotted lines for storage. Quality testing happens before shipping to ensure reliability.

The brand is newer which may require more trust verification. The cut-to-use design requires careful handling to avoid misalignment. Still the features offer practical value for users.

Pick DURNERGY if you value smart packaging features. The wide temperature range suits outdoor applications. It is a practical choice for versatile device needs.

Flexible Removal Design

Cut along dotted lines to remove single batteries while keeping rest intact.

Broad Climate Performance

Operates effectively from -4F to 140F for all weather usage.

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

Choosing the right 377A watch battery requires considering chemistry capacity and safety features to match your device needs.

Battery Chemistry Type

377A watch batteries come in two main chemistries: silver oxide and alkaline. Silver oxide batteries provide stable voltage throughout their life and are best for watches and sensitive electronics. Alkaline batteries are cheaper but lose voltage faster and may leak sooner.

Always check your device manual for preferred chemistry to ensure optimal performance.

Shelf Life Requirements

If you plan to stock batteries for future use look for models with at least three years shelf life. Some premium brands offer four year guarantees which ensure the battery arrives fresh even after long storage periods.

Prioritize shelf life if you replace batteries infrequently.

Leak Prevention Technology

Leak prevention is crucial to protect expensive watches from damage. Modern batteries use steel sealing and anti-corrosion elements. Look for specific claims about leak-proof designs in product descriptions.

Choose options with sealed casing for high-value electronics.

Voltage Stability

Voltage stability ensures your watch runs accurately without sudden stops. Silver oxide types maintain 1.55 volts consistently while alkaline types may drop. Stable voltage is essential for chronographs and digital displays.

Select silver oxide for devices needing consistent power.

Pack Size and Quantity

Decide how many batteries you need based on household size. Single packs suit immediate needs while 10 or 20 packs offer better value for bulk buying. Ensure the packaging allows safe storage without accidental discharge.

Buy in bulk only if you can store them safely for later use.

Brand Reputation

Established brands often have stricter quality control and testing. While generic brands can work trusted names provide peace of mind. Reviews help verify if a brand delivers on promises.

Prefer reputable brands for critical medical or watch devices.

Child Safety Features

If children are present consider batteries with child-secure packaging. Some brands design blister packs that require scissors to open reducing accidental ingestion risks. This feature is vital for households with young kids.

Prioritize child safety packaging to prevent accidents.

Environmental Safety

Look for mercury-free and CE certified options. These ensure the batteries are free from toxic substances during use and disposal. Eco-friendly production processes reduce environmental harm significantly.

Check labels for eco-friendly and mercury-free claims.

How to Use and Care for Your 377A Watch Battery

Always handle batteries with dry hands to prevent short circuits. Touch only the edges of the battery and avoid contact with terminals.

Store unused batteries in a cool dry place away from direct sunlight. Keep them in original packaging to prevent accidental discharge or corrosion.

Replace batteries immediately if you notice dimming lights or stopping devices. Old batteries can leak and damage the electronics permanently.

Frequently Asked Questions

Final Thoughts on Choosing the Best 377A Watch Battery

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