TXY 10pcs/Pack AG4 Alkaline Cell Battery
4.6Editor score
Mercury-free environmental protection
Low self-discharge over time
Stainless steel leak-proof design
In this guide
Finding the right power source for your small electronics is crucial for consistent performance. The 377A watch battery is a popular choice for watches and gadgets needing reliable energy without frequent replacements.
We evaluated ten highly rated options based on customer feedback, voltage stability, and leak-proof features. Our analysis focuses on silver oxide and alkaline cells that deliver consistent power across various device types.
Each selection highlights key strengths and compatibility details to simplify your decision. Keep in mind that availability and offers may shift, so verify current stock before finalizing your purchase decision.
Top 3 Picks for Best 377A Watch Battery
LiCB 10 Pack SR626SW 377 Watch Battery
4.7Editor score
High quality silver oxide cells
Three years shelf life guaranteed
Leak-proof technology included
Duracell 377/376 Silver Oxide Button Batteries
4.7Editor score
Four years storage guarantee
Child-secure packaging standard
Trusted brand reputation
Top 10 Best 377A Watch Battery in 2026 Compared
This side-by-side comparison reviews ten leading 377A watch battery models to highlight their unique specifications and compatibility ranges for informed purchasing.
ProductsSpecificationsEditor scorePrice
Best Budget
TXY 10pcs/Pack AG4
Voltage: 1.55V
Capacity: 20mAh
Type: Alkaline
Shelf Life: 4 years
4.6Editor score
Editor's Choice
LiCB 10 Pack SR626SW
Voltage: 1.55V
Type: Silver Oxide
Shelf Life: 3 years
Certified: CE ROHS
4.7Editor score
Best Premium
SR626SW Watch Batteries
Voltage: 1.55V
Type: Alkaline
Shelf Life: 2 years
Count: 10
4.7Editor score
Energizer 377/376
Voltage: 1.55V
Type: Silver Oxide
Count: 5
Replaces SR626SW
4.7Editor score
LOOPACELL 377/376
Voltage: 1.55V
Type: Silver Oxide
Leak Proof: Yes
Count: 5
4.6Editor score
10pcs 1.5V AG4
Voltage: 1.5V
Diameter: 6.8mm
Type: Alkaline
Count: 10
4.7Editor score
LiCB 20 Pack SR626SW
Voltage: 1.55V
Type: Silver Oxide
Count: 20
Shelf Life: 3 years
4.7Editor score
SKOANBE 10Pack
Voltage: 1.5V
Type: Silver Oxide
Shelf Life: 3 years
Count: 10
4.6Editor score
Duracell 377/376
Voltage: 1.55V
Type: Silver Oxide
Count: 2
Shelf Life: 4 years
4.7Editor score
DURNERGY SR626SW
Voltage: 1.5V
Type: Alkaline
Count: 10
Sealed Steel Case
4.7Editor score
1. LiCB 10 Pack SR626SW – Best Overall 377A Watch Battery
LiCB 10 Pack SR626SW
High quality silver oxide cells
Three years shelf life
Leak-proof technology included
CE and ROHS certified
This LiCB SR626SW battery ranks high for its consistent performance in small electronics. It holds a strong customer rating and provides reliable power for watches and calculators alike. The silver oxide chemistry ensures stable voltage throughout its lifespan, reducing the risk of sudden device failure.
Pros
- Consistent voltage delivery
- Long shelf life
- Leak-proof design
- Multiple device compatibility
- Reliable brand reputation
Cons
- Slightly higher price
- Packaging may vary
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The battery features advanced leak-proof technology that protects your devices from corrosion. Each unit is tested under strict quality control standards to ensure Grade A cell performance. You receive ten fresh batteries ready to use immediately upon opening the package.
While the price is modestly higher than alkaline options, the longevity justifies the investment. The shelf life remains strong at three years, ensuring freshness even if stored for later use. This is ideal for users who buy in bulk for household needs.
Choose this option if you prioritize reliability and device safety. It suits anyone needing dependable power for watches, laser pointers, or medical devices. The comprehensive compatibility list makes it easy to find the right fit for most small electronics.
Stable Voltage Output
The silver oxide chemistry ensures steady 1.55V output until depletion, preventing device malfunction.
Leak-Proof Technology
Advanced sealing methods prevent corrosive leakage that could damage sensitive electronic components.
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2. TXY 10pcs/Pack AG4 – Best Budget 377A Watch Battery
TXY 10pcs/Pack AG4
Voltage: 1.55V
Capacity: 20mAh
Mercury-free design
Leak-proof stainless steel
The TXY AG4 battery offers an economical solution for users needing basic power. It fits the 377A category well and provides consistent voltage for toys and remotes. The packaging includes ten units which is excellent for household usage.
Pros
- Affordable pricing
- Environmental friendly
- Long storage time
- Stainless steel case
- Wide device compatibility
Cons
- Lower capacity than silver oxide
- Shorter shelf life
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Manufactured with mercury-free materials, it prioritizes environmental safety without compromising performance. The stainless steel casing adds durability and prevents leaks effectively. This design choice extends the life of the battery during storage and use.
While the capacity is standard for alkaline cells, it serves well for low-drain devices. The low self-discharge rate means these can be stored for up to four years. This makes them a practical choice for emergency backup kits.
Ideal for budget-conscious buyers seeking reliable power. It suits remote controls, toys, and basic cameras. The compatibility list covers most standard 377 equivalents, simplifying replacements for everyday gadgets.
Environmental Safety
Free from harmful substances like lead and mercury, ensuring safe disposal and minimal ecological impact.
Durable Case
Stainless steel construction provides robust protection against leaks and physical damage during handling.
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3. Duracell 377/376 – Best Premium 377A Watch Battery
Duracell 377/376
Four years storage guarantee
Child-secure packaging
Trusted brand name
High performance silver oxide
Duracell sets the standard for battery reliability with this silver oxide option. It offers a four-year storage guarantee which ensures freshness whenever needed. The child-secure packaging adds an essential layer of safety for households with children.
Pros
- Industry leading storage
- Safety packaging
- Trusted manufacturer
- Reliable performance
- Wide compatibility
Cons
- Higher price per unit
- Pack of only two
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Each battery provides long-lasting power suitable for digital thermometers and stopwatches. The brand's reputation for quality gives buyers confidence in performance consistency. This is a premium choice for critical devices where failure is not an option.
The pack size is small, which might seem limiting for bulk buyers. However, the guaranteed shelf life allows you to store them without worry. The voltage remains stable over time, supporting high-powered devices better than alkaline alternatives.
Best for users prioritizing safety and brand trust. It suits emergency preppers and families needing secure packaging. The performance justifies the higher cost for critical applications where reliability is non-negotiable.
Child Safety Packaging
Packaging designed to be nearly impossible to open without tools, preventing accidental access by children.
Long Term Storage
Guaranteed four-year shelf life ensures readiness whenever you need to replace a battery in the future.
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4. Energizer 377/376 – Strong Silver Oxide Option
Energizer 377/376
Replaces SR626SW
Standard button type
Video power supply
5 pack convenience
Energizer offers a dependable option for users familiar with the brand. This pack includes five batteries which balances cost and convenience. It replaces the SR626SW model effectively for watches and small electronics.
Pros
- Trusted brand
- Good pack size
- Stable performance
- Silver oxide chemistry
- Widely available
Cons
- Limited details
- Packaging simple
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The silver oxide construction ensures consistent power output similar to premium competitors. It is designed for use in audio video power supplies and other small devices. The quality control standards match the brand's reputation for durability.
While specifics on shelf life are not detailed, the performance is reliable. The simple packaging reduces waste while keeping the batteries secure. This is a solid middle-ground choice for general household use.
Recommended for those who trust established brands. It fits watches and calculators well. The 5-pack ensures you have backups for unexpected replacements.
Brand Reliability
Energizer maintains high quality standards ensuring consistent performance across battery production batches.
Practical Pack Size
Five units offer a practical quantity for regular household needs without excess storage costs.
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5. LOOPACELL 377/376 – Durable Silver Oxide
LOOPACELL 377/376
Anti-corrosion elements
Leak-proof technology
Ready to use
1.55V output
LOOPACELL focuses on durability with its anti-corrosion elements. This ensures the battery maintains power even after years of potential storage. The pack of five is sufficient for general household needs.
Pros
- Anti-corrosion design
- Leak-proof build
- Ready for use
- Good value
- Wide compatibility
Cons
- Standard features
- Packaging varies
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Leak-proof technology is a key feature that protects your devices. It is designed for a wide variety of gadgets from watches to remote controls. Each battery arrives charged and ready for immediate use.
The voltage is steady at 1.55V ensuring your electronics run smoothly. The company is committed to quality value for money which is evident in performance. It is a straightforward choice for general replacements.
Suits users needing reliable backup batteries. It is easy to open and install. The anti-corrosion design adds peace of mind for long-term storage.
Anti-Corrosion Design
Special elements protect against internal corrosion extending battery life and ensuring stable output.
Ready to Use
Batteries arrive fully charged ensuring they can power your devices immediately upon installation.
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6. 10pcs 1.5V AG4 – High Density Power
10pcs 1.5V AG4
6.8mm diameter
High energy density
Long lifespan
Multiple model names
This 10-pack offers excellent density for small electronics. It provides continuous power suitable for watches and calculators. The 6.8mm diameter fits most standard compartments without issues.
Pros
- High energy density
- Long continuous power
- Small standard size
- Cost effective
- Diverse compatibility
Cons
- Standard alkaline
- Handling care needed
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The high energy density allows for a long lifespan compared to standard options. Instructions note proper handling to avoid short circuits. It is important to insert them in the correct direction.
The packaging supports up to 10 batteries making it practical for stock. It includes a wide range of model equivalents for easy identification. The performance is consistent for daily devices.
Great for bulk buyers who value capacity. It is essential to follow storage advice to maintain quality. This model is versatile for various low-power devices.
High Energy Density
Provides sustained power output for longer periods ensuring less frequent battery changes.
Precise Dimensions
Standard 6.8mm diameter fits universally in most watch and small electronics compartments.
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7. LiCB 20 Pack SR626SW – Bulk Value Choice
LiCB 20 Pack SR626SW
Grade A cells
20 pack count
Three years shelf
Multiple equivalents
This larger pack from LiCB offers great value for frequent users. It contains twenty Grade A cells which are tested for performance. The three-year shelf life ensures freshness when stored properly.
Pros
- High quantity pack
- Grade A quality
- Good for bulk
- Stable voltage
- Certified safe
Cons
- Large storage needed
- Same as 10 pack
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Certified for CE and ROHS compliance ensuring safety standards are met. It is suitable for many small electronics including toys and calculators. The multiple equivalents make it easy to match existing devices.
While it requires more storage space the quantity reduces frequent purchases. The voltage remains steady for daily electronics use. It is designed to offer long-lasting power for varied applications.
Best for households with many small gadgets. It ensures you always have a replacement ready. The quality matches the 10-pack version but with better long-term savings.
Grade A Quality
Cells meet strict quality control standards ensuring reliable performance across all units.
Certified Safe
CE and ROHS certification confirms compliance with international safety and environmental standards.
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8. SKOANBE 10Pack – Fresh Cell Performance
SKOANBE 10Pack
Full 1.5V charge
Three years shelf
Long lasting power
Safety warnings
SKOANBE provides fresh batteries with a three-year shelf life. Each unit holds a full 1.5V charge upon delivery. It is important to handle the terminals carefully to avoid short circuits.
Pros
- Fresh stock
- Long shelf life
- Stable voltage
- 10 pack count
- Safety tips
Cons
- Handling care
- Basic packaging
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The silver oxide design ensures long-lasting power for watches and calculators. Compatibility includes SR626SW and other standard models. The packaging ensures the cells remain protected until use.
The focus is on providing consistent performance for small devices. The 10-pack is practical for households with several gadgets. Safety tips help extend battery life during storage.
Good for general replacements needing reliable power. It ensures freshness for immediate needs. Always handle with care to prevent damage.
Fresh Stock Guarantee
Batteries are delivered fresh with full charge ensuring immediate usability without waiting.
Terminal Safety
Handling instructions advise avoiding direct terminal contact to prevent short circuit damage.
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9. DURNERGY SR626SW – Stable Voltage Design
DURNERGY SR626SW
Sealed steel case
Anti-misalignment cut
Wide temperature range
18 years experience
DURNERGY emphasizes stable discharge without device damage. The sealed steel case prevents leakage effectively. Its design includes a unique anti-misalignment feature for easy removal.
Pros
- Stable discharge
- Steel case seal
- Individual cut design
- Wide temp range
- Quality testing
Cons
- Alkaline chemistry
- Temperature limits
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It operates across a wide temperature range making it versatile. The company supervises production closely to ensure quality. The individual cut design prevents remaining batteries from misplacing.
This model offers reliability for various home appliances. The quality testing ensures safety and performance. It is suitable for remote controls and similar devices.
Recommended for users valuing design details. It protects against leaks and damage. The individual cut feature is a practical addition for storage.
Anti-Misalignment Design
Batteries can be individually cut to prevent loss and allow precise usage control.
Stable Discharge
Consistent voltage discharge ensures devices operate smoothly without sudden power drops.
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10. SR626SW Watch Batteries – Practical Alkaline Pack
SR626SW Watch Batteries
2 years shelf life
High discharge efficiency
Multiple model matches
Pack of 10
This pack offers stable voltage for small electronics. It includes ten batteries suitable for calculators and thermometers. The shelf life is two years ensuring freshness for moderate storage.
Pros
- High discharge efficiency
- Standard voltage
- Easy replacement
- Multiple equivalents
- Safe storage tips
Cons
- Standard features
- Shorter shelf
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It provides high discharge efficiency protecting equipment from damage. It is important to wipe batteries with a dry cloth before use. Proper storage in cool places extends lifespan.
The model equivalencies cover many standard names like LR626. It ensures compatibility across varied devices. The packaging supports safe handling and use.
Ideal for general household replacements. It is a practical choice for basic needs. Proper care extends life significantly.
High Discharge Efficiency
Efficient discharge protects sensitive electronic equipment from damage during use.
Maintenance Tips
Wiping with a dry cloth ensures proper contact and extends operational efficiency.
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Buying Guide – How to Choose the Best 377A Watch Battery
Selecting the right battery involves understanding chemistry, shelf life, and device compatibility.
Battery Chemistry
Silver oxide cells typically offer more stable voltage than alkaline ones. This stability is crucial for sensitive electronics like digital watches.
Choose silver oxide for critical devices and alkaline for low-drain tools.
Shelf Life
Most quality batteries come with a three to four year guarantee. This ensures you have fresh power when needed.
Look for explicit shelf life claims to avoid old stock.
Packaging Safety
Secure packaging prevents accidental damage and is vital for households with children. Child-resistant designs are a standard safety feature.
Prioritize safety packaging for family environments.
Leak Protection
Leak-proof technology protects your devices from corrosion. Stainless steel cases add durability against physical damage.
Always check for leak-proof claims in product specs.
Compatibility
Ensure the battery matches your device's requirements. Many models have multiple names like SR626SW or AG4.
Check the full list of equivalencies before purchasing.
Capacity
Higher capacity means longer usage time per charge. For high-drain devices, look for higher mAh values.
Consider your usage needs before selecting capacity.
Value
Price per unit matters when buying in bulk. Larger packs often offer better value for frequent replacements.
Compare total value rather than just pack price.
Brand Trust
Reputable brands often maintain consistent quality. Established names provide reliable standards.
Stick to known brands for critical applications.
How to Use and Care for Your 377A Watch Battery
Always handle batteries by the edges to avoid touching terminals. Oils from fingers can affect contact quality.
Store batteries in a cool dry place away from direct sunlight. This preserves their shelf life and prevents heat damage.
Dispose of used batteries responsibly at designated recycling centers. Do not throw them in fire or reuse them.
Frequently Asked Questions
What does 377A stand for?
The 377A designation refers to a standard button cell size. It has various alternative names like SR626SW and AG4. All these names indicate the same physical dimensions and voltage.
Can I mix different brands?
It is generally safe to mix brands if specs match. Ensure both are silver oxide or alkaline for best performance. Mixing chemistries can cause inconsistent voltage.
How do I know if my battery is dead?
Signs include dim displays or slow ticking in watches. Devices will fail to power on completely when exhausted. Use a tester if available for confirmation.
Are these batteries safe for kids?
Safety packaging is vital for families. Keep batteries out of reach of small children. Follow manufacturer warnings strictly to prevent accidents.
Can I use alkaline instead of silver oxide?
Yes for low-drain devices but voltage stability differs. Silver oxide provides more consistent power for sensitive electronics. Choose based on device requirements.
What is the typical lifespan?
Lifespan depends on device usage. High-drain toys drain faster than watches. Expect two to five years based on usage.
How do I install the battery?
Check the positive and negative markings. Place the battery in the correct direction. Push down gently until it clicks into place.
Do batteries expire?
Yes they have a shelf life. Store in cool conditions to extend it. Use within the expiration window for best power.
Final Thoughts on Choosing the Best 377A Watch Battery
The top picks highlight diverse options for different needs. LiCB offers great quality while Duracell provides trusted safety.
Prioritize safety features and shelf life for long-term satisfaction. Proper handling ensures your devices run smoothly.
Always verify current availability before making your purchase. These reliable options ensure your electronics stay powered consistently.