Best SR621SW Button Batteries of 2026

Bonnie Salem Avatar
Bonnie Salem
Last Updated: Jan 22, 2026

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SR621SW button batteries are small, round and compact batteries that are widely used in various electronic devices. These batteries are also known as AG1, LR621, 364, and 164 batteries. They are commonly used in small electronic devices such as watches, calculators, cameras, and remote controls. The SR621SW button batteries are known for their long-lasting power and reliability, making them a popular choice for many users. These batteries are easy to install and are widely available in stores and online. With their compact size and reliable power, they are a great option for powering small electronic devices.

At a Glance: Our Top Picks

LiCB SR621SW Button Cell Watch Batteries Cover #TOP 1
LiCB SR621SW Button Cell Watch Batteries
ftb score rating icon 9.9
Renata 364 SR621SW Silver Oxide Battery Cover #TOP 2
Renata 364 SR621SW Silver Oxide Battery
ftb score rating icon 9.8
Cotchear AG1 Coin Battery Pack Cover #TOP 3
Cotchear AG1 Coin Battery Pack
ftb score rating icon 9.6

Top 8 SR621SW Button Batteries

#TOP 1

LiCB SR621SW Button Cell Watch Batteries

SR621SW
LiCB SR621SW Button Cell Watch Batteries Cover
LiCB 20 Pack SR621SW 364 164 363 AG1 Battery 1.5V Button Cell Watch Batteries

The LiCB SR621SW Button Cell Watch Batteries are a reliable and cost-effective option for those in need of a new watch battery. These batteries are tested under strict quality control standards and are CE and ROHS certified. With a full 1.5 volts charge and a shelf life of 3 years, these batteries are durable and long-lasting. They are compatible with LR621, D364, SP364, 602,164, 280-34, SB-AG/DG, SR60, SR60L, SR621, GP364, T, V364 devices. Each blister pack contains 20 batteries and comes with an 18-month warranty and friendly customer service.

What We Like
Tested under strict quality control standards and CE and ROHS certified
Full 1.5 volts charge and 3-year shelf life
Compatible with a wide range of devices
#TOP 2

Renata 364 SR621SW Silver Oxide Battery

Renata
1 Count (Pack of 2)
Renata 364 SR621SW Silver Oxide Battery Cover
Renata 364 SR621SW Batteries - 1.55V Silver Oxide 364 Watch Battery (2 Count)

The Renata SR621SW Battery offers reliable power with its 1.55V nominal voltage, ideal for keeping your devices running smoothly. Thanks to its strong resistance to leaks, you don’t have to worry about damage to your valuable electronics. This battery holds its charge well even when stored for a long time, so it’s ready whenever you need it. Made with Swiss quality, you can expect consistent performance every time, ensuring your watches, toys, and gadgets stay powered without frequent replacements. It’s a dependable choice for various small devices, providing convenience and peace of mind.

What We Like
Leakage resistance
Stable 1.55V voltage
Long storage capacity
Consistent Swiss quality
#TOP 3

Cotchear AG1 Coin Battery Pack

Assorted Colors
Cotchear AG1 Coin Battery Pack Cover
Cotchear 10pcs AG1 Battery LR621 364 Watch Battery 1.55V 364 SR621SW LR621 621 LR60 CX60 Alkaline Button Cell Batteries for Watch Toys Remote

The Cotchear AG1 Coin Battery Pack includes 10 high-quality alkaline button cell batteries that are tested under strict quality control standards. With a standard voltage of 1.5V and a diameter of approximately 7.9mm, these batteries are suitable for use in a variety of devices such as watches, clocks, calculators, cameras, and more. They may also be known as 164/364/531/602/280-34/364A/CX60/D364/G1/GP364/LR60/LR621/LR621W/SB-AG/DG/SP364/SR60/SR60L/SR621/SR621SW/T/TR621/TR621SW/V364. It is recommended to wipe the battery with a dry cloth and set it properly confirming the end (+/-) before use. Keep the battery in a dark, cool, and dry place and do not throw it in the fire or attempt to recharge it.

What We Like
Includes 10 high-quality alkaline button cell batteries
Tested under strict quality control standards
Suitable for use in a variety of devices
#TOP 4

Energizer 364-363 Low-drain Battery Pack of 5

8O-PBDG-F6QC
5 Count (Pack of 1)
Energizer 364-363 Low-drain Battery Pack of 5 Cover
Energizer 364-363 1.55v #364/363 Low-drain Battery (SR621SW) Pack of 5 Batteries.

The Energizer 364-363 Low-drain Battery Pack of 5 is a reliable and long-lasting option for small electronics and watch batteries. These button batteries are made with silver oxide composition and come in a pack of 5. They are recommended for use in watches and other small electronics.

What We Like
Long-lasting battery life
Reliable performance
Comes in a pack of 5
#TOP 5

YKM 10 Pack SR621SW 364 Silver Oxide Watch Battery

YKM
364 watch battery
6.8*2.1mm
YKM 10 Pack SR621SW 364 Silver Oxide Watch Battery Cover
YKM 10 Pack 364 SR621SW Watch Battery AG1 364/363 LR621 V364 1.55V Silver Oxide Battery

The YKM SR621SW Watch Battery offers reliable, long-lasting power with its high-quality battery cells, ensuring your devices run smoothly for extended periods. This battery is designed with multiple safety features, including excellent sealing to prevent leaks and explosions, so you can use it with confidence. It’s also environmentally friendly, containing no harmful chemicals like mercury, lead, or chromium. Compatible with a wide range of devices, from watches and calculators to remote controls and hearing aids, this battery provides versatile and dependable energy for many everyday electronics you rely on.

What We Like
Long-lasting power
Multiple safety protections
Environmentally friendly
Wide device compatibility
Certified quality testing
#TOP 6

SKOANBE Watch Battery 10-Pack

SKOANBE Watch Battery 10-Pack Cover
SKOANBE 10Pack SR626SW 377 LR626 AG4 1.5V Watch Battery

Keep your watch and small electronics running smoothly with the SKOANBE 10Pack SR626SW 377 LR626 AG4 1.5V Watch Battery. These batteries have a 3-year shelf life and come with a full 1.5 volts charge, ensuring long-lasting power and longer battery life. They are compatible with LR626, SR626SW, AG4, 626, SR626, 377A, V377, and 377, making them versatile for use in a variety of devices. With 10 fresh batteries included, you'll have plenty of replacements on hand for your watch, toys, calculators, and other small electronics.

What We Like
10 fresh batteries included
3-year shelf life
Compatible with multiple devices
#TOP 7

LiCB 10 Pack SR621SW Watch Battery

LiCB-SR621SW-10US
10 Pack
LiCB 10 Pack SR621SW Watch Battery Cover
LiCB 10 Pack SR621SW 364 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

LiCB 10 Pack SR621SW Watch Battery is a high-quality, long-lasting, and leak-proof button cell battery that is perfect for watches. These batteries are tested under strict quality control standards and are CE and ROHS certified. With a full 1.55 volts charge and a shelf life of 3 years, these batteries are durable and cost-saving. They are compatible with various watch models and come in an exact blister pack of 10 batteries. Additionally, they come with an 18-month warranty and friendly customer service.

What We Like
High-quality and long-lasting
Leak-proof and safe to use
Compatible with various watch models
Exact blister pack of 10 batteries
18-month warranty and friendly customer service
#TOP 8

Renata 364 SR621SW Silver Oxide Batteries

Renata
4332780868
silver
2 Count (Pack of 1)
Renata 364 SR621SW Silver Oxide Batteries Cover
2 Renata 364 SR621SW Silver Oxide Zero Mercury Electronic Batteries

Renata 364 SR621SW Silver Oxide Batteries are a top-quality choice for a variety of electronic devices, including watches, cameras, calculators, and car security alarms. These batteries are made with zero mercury and are super fresh, ensuring long-lasting performance. They are also compatible with computer equipment, such as memory backup batteries and CMOS. With a unit count of 2.0, these batteries are a reliable and convenient choice for all your electronic needs.

What We Like
Zero mercury composition
Super fresh and top quality
Compatible with a wide range of electronic devices
Buying Guide Image

Buyer's Guide: Best SR621SW Button Batteries

How to Choose the Right SR621SW Button Batteries

Are you tired of constantly replacing the batteries in your watch or small electronic device? Look no further than the SR621SW button battery, a reliable and long-lasting option for your needs. But with so many options on the market, how do you choose the right one? Here are some tips to help you make an informed decision.

Check the Brand

While there are many brands that produce SR621SW batteries, not all are created equal. Look for well-known and reputable brands that have a proven track record of quality and reliability. Some brands to consider include Energizer, Duracell, and Sony.

Check the Voltage

The voltage of the battery is important to ensure that it is compatible with your device. The SR621SW battery typically has a voltage of 1.55V, but it's always best to double-check the specifications of your device before purchasing.

Check the Capacity

The capacity of the battery determines how long it will last before needing to be replaced. It is measured in milliampere-hours (mAh) and can vary between brands and models. Generally, the higher the capacity, the longer the battery will last. Look for a battery with a capacity of at least 20mAh for optimal performance.

Check the Expiration Date

Just like any other battery, the SR621SW has a limited lifespan. Be sure to check the expiration date before making a purchase. Using an expired battery can result in reduced performance or even damage to your device.

Look for Reviews

Before making a purchase, take the time to read reviews from other customers who have used the same battery. Look for reviews that mention the battery's performance, lifespan, and compatibility with different devices. This will give you a better idea of whether or not the battery is right for your needs.

Final Thoughts

Choosing the right SR621SW button battery doesn't have to be a daunting task. By checking the brand, voltage, capacity, expiration date, and reviews, you can make an informed decision that will ensure optimal performance for your device. Remember to always follow the manufacturer's instructions when installing and using the battery to avoid any potential issues.

Frequently Asked Questions (FAQs)

1. What battery can replace SR621SW?

364 Battery is a direct replacement for SR621SW, SR60, SR621, SB-AG/DG, 280-34, T, V364, D364, 602, S621E, GP364, AG1, AG-1, 364, L621, LR621, SG1, LR60, LR620, SW621, GP164, 364X, 364A, AG1/364A, SB-AG, E364 batteries.

2. Is 377 same as SR621SW?

Is 377 battery the same as SR621SW? Absolutely not. 377 is a silver-oxide 6.8x2. 6mm coin cell battery, while SR621SW is a silver-oxide 6.8 x 2.1mm battery.

3. Are 621 and 626 batteries interchangeable?

Additionally, the height of SR621SW and SR626SW is different. The height of SR621SW is 2.15 mm, and the height of SR626SW is 2.6 mm. So they are not interchangeable and the application of they are applied in different places.

Editor's Notes

During our sr621sw button battery research, we found 24 sr621sw button battery products and shortlisted 8 quality products. We collected and analyzed 229,979 customer reviews through our big data system to write the sr621sw button batteries list. We found that most customers choose sr621sw button batteries with an average price of $5.17.

The sr621sw button batteries are available for purchase. We have researched hundreds of brands and picked the top brands of sr621sw button batteries, including LiCB, Renata, Cotchear, Energizer, YKM. The seller of top 1 product has received honest feedback from 9,705 consumers with an average rating of 4.9.

Written by
Bonnie Salem Avatar

Bonnie Salem is a stay-at-home mother with two-year-old twins and has spent almost half of her life surrounded by baby products. As a mother and a professional copywriter, she has an insightful and unique eye for researching products suitable for infants. Bonnie Salem is an expert in health and nutrition who lives with her family in New Jersey. She has over 15 years of working experience in an institute of medicine after graduating from the University of Toronto. She is highly interested in personal health and wellness.