10 Best 377A Watch Battery in 2026

Finding the right power source for your timepiece is crucial for consistent performance. A high-quality 377A watch battery ensures your device runs smoothly without unexpected failures or leaks.

We evaluated ten top-rated options based on capacity, shelf life, and customer feedback. Our comparison highlights the most reliable choices for watches, calculators, and other small electronics.

Each selection below shows key specs and real-world performance insights. Please note that availability and pricing can change frequently, so verify details before purchasing your next pack.

Top 3 Picks for Best 377A Watch Battery

Top 10 Best 377A Watch Battery in 2026 Compared

This side-by-side comparison lists all ten selected products with their key specifications. Review the table to find the perfect match for your specific device requirements and budget constraints.

1. LiCB 10 Pack SR626SW 377 Watch Battery – Editor's Choice

4.7Editor scoreCheck price on Amazon

LiCB 10 Pack SR626SW 377 Watch Battery

Voltage: 1.55V

Type: Silver Oxide

Shelf Life: 3 Years

Count: 10 Pieces

The LiCB 10 Pack SR626SW 377 Watch Battery stands out as a top-tier choice for powering your timepieces. With a 4.7-star rating from users, it delivers consistent 1.55V power suitable for precision electronics like watches and calculators.

Pros

• High capacity silver oxide cells
• Leak-proof technology included
• Long shelf life storage
• Strict quality control tested
• Compatible with many devices

Cons

• Slightly higher cost per unit
• Individual blister pack usage

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These batteries utilize Grade A silver oxide cells that ensure longer life and stable voltage. The strict quality control standards mean you get fresh 1.5 volt charges every time. They are CE and ROHS certified, ensuring safety and environmental compliance.

While the price point is slightly higher than generic alkaline options, the performance justifies the cost. Some users note that the individual blister pack requires effort to open, but this protects freshness until use.

If you prioritize reliability and longevity for your watch, this pack is an excellent investment. It serves as a reliable backup for various small electronics where stable power is critical for function.

Reliable Silver Oxide Technology

Silver oxide chemistry provides more consistent discharge than alkaline, making it ideal for sensitive digital watches.

Extended Shelf Life

With a three-year shelf life, you can buy in bulk without worrying about batteries losing charge over time.

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

4.6Editor scoreCheck price on Amazon

TXY 10pcs/Pack AG4 Alkaline Cell Battery

Voltage: 1.55V

Capacity: 20mAh

Type: Alkaline

Count: 10 Pieces

The TXY 10pcs/Pack AG4 Alkaline Cell Battery offers an economical solution for everyday devices. Rated 4.6 stars by satisfied customers, it provides 1.55V power suitable for toys, remote controls, and basic watches.

Pros

• Affordable multi-pack option
• Mercury-free construction
• Low self-discharge rate
• Stainless steel sealing
• Compatible with various models

Cons

• Alkaline may leak over time
• Slightly lower capacity

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These batteries feature low self-discharge technology, remaining valid for up to four years in storage. The production process avoids harmful substances like lead and mercury, making them an eco-friendly choice for budget-conscious buyers.

The stainless steel appearance ensures good sealing performance, reducing the risk of leaks. However, alkaline chemistry generally has a lower capacity than silver oxide, which might require more frequent replacements in high-drain devices.

Choose this option if you need a reliable power source for multiple devices without breaking the bank. It is perfect for items where frequent battery changes are acceptable and cost is a primary concern.

Eco-Friendly Production

Manufactured without mercury, cadmium, or lead, these batteries meet environmental protection standards.

Long Storage Time

Store them in a low temperature and dry environment to maximize their storage life significantly.

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

4.7Editor scoreCheck price on Amazon

Duracell 377/376 Silver Oxide Button Batteries

Voltage: 1.55V

Type: Silver Oxide

Shelf Life: 4 Years

Count: 2 Pieces

Duracell is a globally trusted battery brand known for dependable power. This 377/376 Silver Oxide pack carries a 4.7 rating and is designed for high-powered devices like stopwatches and laser pointers.

Pros

• Trusted brand reputation
• Four years storage guarantee
• Child-secure packaging design
• Wide device compatibility
• Reliable performance output

Cons

• Higher price per pack
• Lower quantity per purchase

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The packaging is child-secure, making it nearly impossible to open without scissors. Duracell guarantees four years of storage life, ensuring your batteries are ready when you need them most.

Although the pack contains only two units, the performance quality is exceptional. The premium silver oxide chemistry ensures stable voltage and long life, making it worth the higher cost per unit.

Ideal for users who prioritize brand trust and maximum storage stability, this battery is a top choice for emergency kits or critical devices where failure is not an option.

Guaranteed Storage Life

Duracell guarantees each battery to last four years in storage, giving you confidence in long-term availability.

Wide Device Compatibility

Equivalent to multiple models including SR626SW, this battery fits a wide range of digital and analog devices.

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4. Energizer 377/376 Watch Batteries (Pack of 5) – Trusted Brand

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Energizer 377/376

Voltage: 1.55V

Type: Button Cell

Replaces: SR626SW

Count: 5 Pieces

The Energizer 377/376 Watch Batteries are a staple for those needing a direct replacement for SR626SW models. This pack of five carries a strong 4.7 rating and ensures your devices stay powered without interruption.

Pros

• Well-known brand name
• Button type cell design
• Direct SR626SW replacement
• Audio video power supply
• Reliable power output

Cons

• Pack count is limited
• Basic packaging design

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Designed for audio and video power supplies, these button cells offer consistent 1.55V output. Energizer's reputation for quality means you can trust these cells to perform reliably in standard watch applications.

While the packaging is straightforward, the batteries themselves meet high performance standards. Some users note the pack is small, so ordering multiples might be necessary for large collections of devices.

Buy this if you prefer a brand recognized for consistent quality in battery production. It is a solid choice for standard replacements where brand familiarity provides peace of mind.

Direct Replacement Capability

This model replaces all SR626W and SR626SW types, ensuring compatibility with many watch brands.

Stable Power Supply

Engineered to provide steady voltage for digital and analog timekeeping devices.

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5. LOOPACELL 377/376 – Silver Oxide Reliability

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LOOPACELL 377/376

Voltage: 1.55V

Type: Silver Oxide

Leak Proof Design

Count: 5 Pieces

LOOPACELL offers a 5-pack of 377A batteries featuring advanced silver-oxide chemistry. With a 4.6 rating, these batteries promise high power and long life for devices like watches and mini radios.

Pros

• Silver oxide chemistry
• Leak-proof technology
• Anti-corrosion elements
• Wide device suitability
• Ready to use out of box

Cons

• Pack size is small
• Fewer units per dollar

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Their leakproof technology and anti-corrosion elements ensure stable supply even after years. Each battery arrives charged and ready for instant power boost in your hand.

The pack of five is convenient for immediate use, but users needing bulk might find the cost per unit higher than 10-packs. Quality remains consistent however, as the company focuses on premium value.

This battery is ideal for those who want reliable power with anti-corrosion features. It serves as a dependable choice for maintaining various electronics without worrying about leakage issues.

Anti-Corrosion Technology

Advanced elements prevent corrosion, ensuring the battery remains stable even after long periods.

Immediate Power Delivery

Arrives fully charged and ready to use instantly without any additional setup required.

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6. 10pcs 1.5V AG4 – High Capacity Alkaline

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10pcs 1.5V AG4

Voltage: 1.5V

Type: Alkaline

Diameter: 6.8mm

Count: 10 Pieces

This 10-piece pack delivers high energy density and long lifespan for everyday use. With a 4.7 rating, it is ideal for calculators, cameras, and electronic instruments needing steady power.

Pros

• High energy density
• Long lifespan
• Multiple compatible models
• Excellent continuous power
• Widely useful application

Cons

• Standard alkaline chemistry
• Requires careful insertion

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The 6.8mm diameter fits standard slots in watches and toys. These batteries offer excellent continuous power, making them suitable for devices that run for extended periods without needing frequent changes.

The wide range of compatibility covers most 377A variants. However, standard alkaline cells may not match silver oxide longevity in high-demand scenarios. Always insert them correctly to avoid short-circuiting.

Choose this pack for general-purpose needs across many household electronics. It is a reliable and convenient option for stocking up on versatile button cell batteries.

Compact Design

Approximately 6.8mm diameter allows them to fit into tight and precise device compartments.

Versatile Usage

Widely used for toys, cameras, digital recorders, and various small electronic appliances.

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7. LiCB 20 Pack SR626SW – Bulk Value

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LiCB 20 Pack SR626SW

Voltage: 1.5V

Type: Silver Oxide

Shelf Life: 3 Years

Count: 20 Pieces

The LiCB 20 Pack offers substantial value for those needing many batteries at once. With a 4.7 rating, these Grade A cells ensure longer battery life and power for various devices.

Pros

• Large quantity pack
• Silver oxide quality
• Three years shelf life
• Strict quality tested
• Multiple compatibility options

Cons

• Higher upfront cost
• Storage space needed

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Tested under strict quality control, they provide full 1.5V charges for up to three years. This bulk pack reduces the need for frequent reordering and is perfect for households with many electronics.

The larger count means more storage space is required to keep them in ideal conditions. However, the consistent quality makes this a practical choice for stocking up long-term.

Buy this bulk pack if you want to save on unit costs over time. It is an efficient solution for families or professionals managing multiple devices requiring these specific batteries.

Bulk Efficiency

Buying 20 pieces reduces the frequency of ordering and ensures you always have spares available.

Consistent Quality

Grade A cells ensure every unit performs reliably and lasts as long as the manufacturer specifies.

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8. SKOANBE 10Pack SR626SW – Fresh Power

4.6Editor scoreCheck price on Amazon

SKOANBE 10Pack SR626SW

Voltage: 1.5V

Shelf Life: 3 Years

Type: Silver Oxide

Count: 10 Pieces

SKOANBE provides fresh SR626SW batteries that ensure long lasting power. With a 4.6 rating, these batteries offer a three-year shelf life and full 1.5 volt charge upon receipt.

Pros

• Fresh battery stock
• Three years shelf life
• Long lasting power
• Compatible with many models
• Sealed packaging

Cons

• Basic packaging style
• Small count limit

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The 10-pack is sealed to maintain freshness and prevent damage during shipping. These batteries work well with various watches and small electronics where consistent voltage is required.

Handling them with care to avoid short circuits is recommended. The basic packaging is functional but does not offer additional protective features beyond standard blister packs.

Choose this pack for reliable performance without needing bulk quantities. It is ideal for immediate replacement needs or for keeping a small supply on hand.

Fresh Battery Delivery

Batteries are shipped fresh to ensure maximum shelf life and immediate usability.

Wide Compatibility

Replaces multiple models including LR626, AG4, and 377 to fit diverse device types.

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9. SR626SW Watch Batteries – Alkaline Economy

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SR626SW Watch Batteries

Voltage: 1.5V

Type: Alkaline

Shelf Life: 2 Years

Count: 10 Pieces

This 10-count pack offers stable voltage and high discharge efficiency for everyday electronics. With a 4.7 rating, these alkaline coin cells protect your equipment effectively at a reasonable price point.

Pros

• High discharge efficiency
• Stable voltage output
• Protects equipment well
• Two years shelf life
• Affordable pricing

Cons

• Shorter shelf life
• Standard alkaline limitations

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They are designed for applications like watches, clocks, and toys. The two-year shelf life ensures they remain viable for typical usage periods without significant degradation.

Alkaline technology is generally less expensive than silver oxide but may have a shorter shelf life. Proper storage in cool and dark places helps extend their usable lifespan before installation.

Opt for this pack if you need a cost-effective solution for multiple devices. It is a practical choice for consumers prioritizing affordability without sacrificing basic performance reliability.

Efficient Discharge

High discharge efficiency ensures that the battery provides consistent power throughout its life.

Equipment Protection

Stable voltage helps prevent sudden drops that could damage sensitive electronic components.

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10. DURNERGY SR626SW Watch Battery – Anti-Misalignment

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DURNERGY SR626SW Watch Battery

Voltage: 1.5V

Type: Alkaline

Sealed Steel Case

Count: 10 Pieces

DURNERGY provides a unique anti-misalignment design where each battery can be individually cut. With a 4.7 rating, these 377A batteries offer stable voltage and steady discharge for your devices.

Pros

• Sealed steel case design
• Anti-misalignment packaging
• Wide temperature range
• Lead and mercury free
• Stable discharge output

Cons

• Alkaline material limits
• Requires careful handling

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The sealed steel case prevents leakage effectively. They are free from lead and mercury, allowing for straightforward disposal. The design supports a wide temperature range from -4°F to 140°F.

This packaging feature is particularly useful for users who do not need to use all batteries at once. Each unit remains secure without risking loss of remaining stock in the pack.

Pick this pack if you value unique packaging and reliable discharge. It is a solid option for everyday use where leak prevention and safe disposal are priorities.

Individual Packaging

Batteries can be cut individually to prevent misplacement during storage and use.

Leak Prevention

Sealed steel case technology effectively prevents liquid leakage to protect your devices.

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

Choosing the right 377A watch battery depends on your specific device needs and usage patterns. Understanding chemistry, shelf life, and brand reputation will help you make an informed decision.

Battery Chemistry

Most 377A batteries are either silver oxide or alkaline. Silver oxide cells typically offer longer life and more stable voltage, which is crucial for precision timepieces. Alkaline versions are cheaper and work well for lower drain devices like toys.

If your device is a high-quality watch, silver oxide is usually the recommended choice for better performance.

Shelf Life

Shelf life varies significantly between brands. Some offer up to four years of storage, while others may provide two. If you plan to keep spares for emergency use, look for options with a guaranteed shelf life.

Higher shelf life ensures that batteries remain fresh and ready when you actually need them.

Voltage Stability

Stable voltage is key for digital electronics that may reset if power drops suddenly. Look for batteries that explicitly mention stable discharge characteristics in their specs.

This feature prevents unexpected resets in watches and calculators.

Leak Prevention

Leaking batteries can damage the internal mechanism of your device. High-quality packs often include leak-proof technology or sealed steel casings to mitigate this risk.

Always prioritize brands that emphasize safety and protection against leakage.

Compatibility

The 377A designation matches many other codes like SR626SW, 376, and AG4. Verify that the chosen battery matches your device manufacturer's requirement to ensure proper fit.

Using the wrong type might result in poor performance or physical fit issues.

Pack Size

Batteries come in packs ranging from 2 to 20 pieces. Buying in bulk lowers the cost per unit but requires more storage space. Consider how many devices you have before purchasing.

Bulk packs are cost-effective for families with multiple devices needing replacements.

Brand Reputation

Trusted brands often adhere to stricter quality control standards, ensuring consistency across all units in a pack. This reduces the risk of receiving defective cells.

Choose brands with positive user feedback and established histories in battery production.

Environmental Impact

Modern batteries are often mercury-free and recyclable. Checking for environmental certifications ensures that the product meets safety standards for both humans and nature.

Always dispose of used batteries according to local regulations for safety.

How to Use and Care for Your 377A Watch Battery

Always check the polarity before inserting the battery into your device. The positive side usually has a plus sign. Incorrect placement can cause a short circuit.

Store unused batteries in a cool and dry place away from direct sunlight. Extreme temperatures can degrade the chemical performance of the cells.

Remove old batteries immediately if a device is not in use to prevent leakage. Regularly check the compartment for any signs of corrosion.

Frequently Asked Questions

Final Thoughts on Choosing the Best 377A Watch Battery

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