What is the mAh of the batteries?

1300 Mah On Lowes website under specifications, lower part of the screen. https://www.lowes.com/pd/SureFire-CR123A-Lithium-23A-Flashlight-Batteries/1054377

What is the difference between the red Surefire 123As and the brown ones? They seem identical, but the brown are cheaper.

Surefire red, Surefire brown, streamlight, Panasonic are ALL made in the same Panasonic factory in the US, and of hte same materials with some very very minor tweaks. For example a streamlight will run marginally longer (4%) than surefire at 10 ma very low load, 500 ma low load, and 2 amp maximum load. Surefire will run 3% longer at 1 amp mid/high load. These are trivial. Surefire brown are completely identical to reds BUT probably RISKY here on amazon because it is not amazon selling, but third party sellers, who may have knockoffs, quality control failure dumps, or old stock. Get streamlight or surefire "sold by" and shipped by amazon, or "sold by" streamlight or surefire which are made by Panasonic in their US factory, or alternately US made panasonic.

What are the use by dates on the batteries that are shipping out now (9/2/2014)?

I have purchased this item twice. This was my experience. I ordered a box in 2020, and the batteries had a 2023 expiration dates, which I noticed too late. But they worked just fine. I ordered another box in Feb 2023 and they came with 2031 expiration dates. All good as far as I am concerned.

what does 1400mAh mean?

It's the energy storage capability of the battery. The bigger the number means its able to run a given load for a greater length of time. Bigger is better.

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SureFire SF12-BB Boxed Batteries, (12 Pack)

SureFire SF12-BB Boxed Batteries, (12 Pack)

Product ID: 1892822

Details

Battery Capacity
1550 Milliamp
Battery Cell Composition
Lithium Metal
Brand
SureFire
Number of Batteries
12 Lithium
Recommended Uses For Product
Flashlight

⚡12 Amps high-drain power

🕒10-year shelf life

❄️Wide temperature tolerance

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your gear with batteries that never quit!

LONG TERM READINESS - 10-year shelf life ensures batteries are ready when you need them most
TRUSTED BY THOUSANDS - 4.8-star rating from over 16,800 users proves unbeatable performance
LIGHTWEIGHT COMPACT - Only 17 grams and slim dimensions fit perfectly in your flashlight holster
UNMATCHED POWER OUTPUT - 12 Amps of reliable, high-drain energy for your toughest devices
EXTREME ENVIRONMENT PROOF - Operates flawlessly across wide temperature ranges for any adventure

The SF12-BB Boxed Batteries (12 Pack) by SureFire deliver 12 Amps of high-drain lithium metal power with a 10-year shelf life and wide temperature tolerance. Lightweight and compact, these batteries are optimized for flashlights and come highly rated by thousands of users, making them the go-to choice for professionals and enthusiasts who demand reliability in any condition.

Specifications

ASIN	B0035HB694
Amperage	12 Amps
Antenna Location	Flashlight
Battery Capacity	1550 Milliamp Hours
Battery Cell Type	Lithium Metal
Battery Weight	17 Grams
Best Sellers Rank	#17,082 in Health & Household ( See Top 100 in Health & Household ) #7 in C Batteries
Brand	SureFire
Built-In Media	Product
Customer Reviews	4.7 4.7 out of 5 stars (16,839)
Global Trade Identification Number	00084871820134
Item Dimensions	1.38 x 0.59 x 0.59 inches
Item Type Name	Holster
Item Weight	0.05 Pounds
Manufacturer	SureFire
Model Name	SF12-BB
Model Number	SF12-BB
Number of Batteries	12 Lithium Metal batteries required.
Reusability	Single Use
UPC	084871820134
Unit Count	1.0 Count
Voltage	3 Volts
Warranty Description	2 Year Manufacturer

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