Can anyone please compare the size of these batteries to the size of standard 9 volts? Are they the same size as standard batteries or longer?

Amazon 9V batteries received in November 2022 were not larger than a Duracell 9V in any dimension. Carefully measured. Many earlier answers say they are larger, but apparently that problem has been resolved.

Will these fit the standard fire/smoke alarms? comments say that amazon batteries are longer than others which are hard enough to install..thanks

In my review (http://www.amazon.com/review/RNAU5AWNID6IA/ref=cm_cr_rdp_perm) I provided detailed measurements and pictures of the batteries and side by side comparisons.The AmazonBasics and a Utilitech "heavy duty" battery, neither of which fit my CO detector, were both right about 0.6mm longer and 0.6mm fatter than a standard Duracell battery which did fit my CO detector. It seems these are the "big" 9v's (Possibly "Heavy duty"?). They do fit in my smoke detectors, but it really comes down to whether you have a cramped battery compartment or one that does weird things to connect the battery. You should probably pass if that's the case or if you've had issues installing your current batteries.

How much ampere for a battery ?

rightbattery has measured them at 481 mAh for a 50 mA (light) load, which is second only to Ikea's - they have test results for a dozen different 9-volts there.

I need these for a rental property. The city requires that they have expiration dates listed on the battery themselves. Can anyone confirm?

The date is very small on the bottom of the battery. Just received a box of 8, expiration 02/2025.

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Amazonベーシック 9V形アルカリ乾電池 8個保存期限5年

Product ID: 725683874

Details

Battery Cell Composition
Alkaline
Brand
Amazon Basics
Number of Batteries
8 9V batteries
Recommended Uses For Product
Camera
Unit Count
8 Count

⏳5-year shelf life

📦8-pack bulk value

🔋9V high voltage power

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Description

🔋 Power your life, don’t let your devices down!

BULK BUY BULK SAVE - 8 batteries per pack means you’re always ready—no last-minute runs to the store.
LONG LASTING FRESHNESS - 5-year shelf life ensures your batteries stay fresh and ready when you need them most.
POWER UP WITH CONFIDENCE - Reliable 9V alkaline cells deliver consistent 8 amps for your essential devices.
TRUSTED GLOBAL BESTSELLER - Join over 179,000 satisfied users with a 4.2-star rating and top rankings in electronics.
FRUSTRATION FREE PACKAGING - Eco-friendly, easy-open packaging designed to save time and reduce waste.

Amazon Basics 9V alkaline batteries come in an 8-pack with a 5-year shelf life, delivering reliable 8-amp power for a wide range of electronics. Manufactured in Malaysia or China, these batteries feature frustration-free packaging and enjoy strong customer trust with a 4.2-star rating from nearly 180,000 reviews.

Specifications

ASIN	B00MH4QM1S
Amazon Bestseller	#640 in Electronics ( See Top 100 in Electronics ) #34 in Disposable Household Batteries
Amperage	8 Amps
Antenna Location	Camera
Battery Cell Type	Alkaline
Brand	Amazon Basics
Country of Origin	Malaysia
Customer Reviews	4.2 4.2 out of 5 stars (179,669)
Global Trade Identification Number	00841710157253
Item Dimensions	26 x 17 x 48 mm
Item Weight	0.05 Kilograms
Manufacturer	Amazon「この商品はマレーシアまたは中国で製造されている可能性があります」
Model Number	6LR61-8PK
Number of Batteries	8 9V batteries required. (included)
Reusability	Single Use
UPC	841710157253
Unit Count	8 Count
Voltage	9 Volts

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

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

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Amazonベーシック 9V形 アルカリ乾電池 8個 保存期限5年

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Amazonベーシック 9V形アルカリ乾電池 8個保存期限5年