I need an AG1 battery, will this one work?

Yes, the 364 button battery is equivalent to the AG1.

does the 364 replace the sr621?

Yes, the 364 is a direct equivalent to an SR 621 and SR 621 SW.

This question is for the manufacturer. Can Duracell specify how long will it last once installed? I supposed they have tested it, so they should know.

That question is impossible to answer, even by the manufacturer. There are multiple factors that determine battery life. The most important is: What is the current drain of the device the battery is installed in?

Why does it say ‘ duracell – 319 1.5v silver oxide button battery’ but the battery i received was a 364?

That seems to be a typo by whoever wrote the ad copy.

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Duracell 364 Silver Oxide Button Battery, 1 Count Pack, 364 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More

Duracell 364 Silver Oxide Button Battery, 1 Count Pack, 364 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More

Product ID: 275366618

Details

Battery cell composition
Silver Oxide
Brand
Duracell
Number of batteries
1 Lithium Ion
Recommended uses for product
Calculator
Unit count
1 Count

⏳4-year guaranteed shelf life

⚡1.5V stable power

🔋18mAh long-lasting capacity

26066 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your essentials with Duracell’s unstoppable energy!

COMPACT YET MIGHTY - Ultra-lightweight 0.15 oz battery packs powerful 18mAh capacity in a tiny form
READY WHEN YOU ARE - Guaranteed fresh and ready after 4 years in storage—no last-minute panic
VERSATILE COMPATIBILITY - Works seamlessly with watches, medical devices, calculators, and more
TRUSTED BRAND CONFIDENCE - Duracell’s #1 trusted battery brand ensures premium quality and performance
POWER THAT KEEPS YOU ON TIME - Reliable 1.5V output perfect for watches and precision devices

The Duracell 364 Silver Oxide Button Battery delivers a steady 1.5V and 18mAh capacity, designed for precision devices like watches, medical instruments, and calculators. With a 4-year guaranteed shelf life and trusted Duracell reliability, it ensures your critical gadgets stay powered when it matters most.

Specifications

ASIN	B00006JPHB
Antenna Location	Calculator, Watch
Battery Capacity	18 Milliamp Hours
Battery Cell Type	Silver Oxide
Battery Weight	0.15 Ounces
Battery capacity	18 Milliamp Hours
Battery cell composition	Silver Oxide
Brand	Duracell
Compatible Phone Models	Watch
Customer Reviews	4.7 out of 5 stars 4,868 Reviews
Included Components	Duracell - 364
Item Dimensions	6 x 44 x 89 millimeters
Item Type Name	Duracell D364BPK09 Silver Oxide Electronic Watch Battery, 364 Size, 1.55V, 18 mAh Capacity (Case of 6)
Item Weight	0.01 Pounds
Manufacturer	Duracell Distributing, Inc
Model Name	Watch battery
Model Number	D364BPK
Number of Batteries	1 Lithium Ion batteries required.
Number of batteries	1 Lithium Ion batteries required.
Recommended uses for product	Calculator, Watch
Reusability	Single Use
UPC	041333164090
Unit Count	1 Count
Unit count	1 Count
Voltage	1.5

Reviews

M**O

Muy buen producto

Excelente calidad. Llegó poco antes de la fecha esperada. Hasta ahora trabajando perfectamente

6.02.2022

H**D

good value

24.06.2025

P**1

Fast shipping,no disappointments.

Duracell is a great battery,lasts a long time.

2.09.2026

K**K

EXCELLENT!

Saved $25 the cost to replace at the jewelry store. So rSy to do, you just need to be carefull removing your watch back and to not break the glass. Not hard to do.

27.03.2022

B**9

good batteries

works good

20.06.2026

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