what is the mAh rating for this battery

According to the Duracell website it is 780

I am assuming they or new but what is the expiration date

Mine came dated March 2028 but that is the shelf life date not an expiration, generally these type of cells are given a 10 year shelf life which only means that they should still be good and useable up to time, currently i’m still using some that are dated 2013 in triage marker lights. The dates are on the batteries themselves that i received but not on the factory packages. I measured the voltage of them and got 3.3x on all which is as expected for this type of cell.

Are these duracell ultra lithium cr2 3v equivqlent to devices and rechargeres that take standard c or d batteries?

No they r very tiny batteries used for cameras and flashlights and stuff like that. Waaaay smaller than c or d batteries.

Do these batteries work in the first alert smoke detector?

These batteries work in the First Alert P1000 model smoke detectors, of which I purchased several from Costco in early 2013.

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Duracell CR2 3V High Power Lithium Battery, 2 Count, 10-Year Storage

Duracell CR2 3V High Power Lithium Battery, 2 Count, 10-Year Storage

Product ID: 6940467

Details

Battery Capacity
780
Battery Cell Composition
Lithium
Brand
DURACELL
Number of Batteries
2 Lithium
Recommended Uses For Product
Bicycle Camera

⏳10-Year Storage Guarantee

⚡3V High Power Output

🔋780mAh Long-lasting Capacity

¥5040

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Description

🔋 Power your essentials with Duracell’s decade-ready energy boost!

COMPACT LIGHTWEIGHT - Slim 0.06 lb design fits seamlessly into specialty electronics.
DECADE LONG SHELF LIFE - Guaranteed 10 years in storage—always ready when you are.
UNMATCHED 3 V HIGH POWER - Delivers consistent, reliable energy for your high-demand devices.
TRUSTED DURACELL QUALITY - Backed by a brand with 13,000+ rave reviews and proven reliability.
VERSATILE DEVICE COMPATIBILITY - Perfect for security systems, photography gear, and home automation.

Duracell CR2 3V High Power Lithium Batteries provide 780mAh of reliable energy, designed for specialty devices like security systems and photographic lighting. With a guaranteed 10-year shelf life and trusted Duracell quality, these compact batteries ensure your critical gear stays powered and ready, making them the go-to choice for professionals and tech-savvy users alike.

Specifications

ASIN	B00005T3DX
Amperage	3 Amps
Antenna Location	Bicycle, Camera, Camera Flash, Photographic Lighting, Scooter
Battery Capacity	780
Battery Cell Composition	Lithium
Battery Cell Type	Lithium
Battery Weight	0.06 Pounds
Brand	DURACELL
Built-In Media	battery 2 pack
Compatible Phone Models	not compatible with phones
Customer Reviews	4.8 out of 5 stars 13,251 Reviews
Global Trade Identification Number	00041333013107
Item Dimensions	0.63 x 3.5 x 3.5 inches
Item Type Name	2 pack battery
Item Weight	13.61 g
Manufacturer	Duracell Distributing, Inc
Model Name	High Power LITHIUM CR2
Model Number	01310
Number of Batteries	2 Lithium Metal batteries required. (included)
Recommended Uses For Product	Bicycle, Camera, Camera Flash, Photographic Lighting, Scooter
Reusability	Single Use
UPC	041333013107
Unit Count	2.0 Count
Voltage	3 Volts
Warranty Description	Limited warranty

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¥5040

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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