What's the difference between AE-23 and A23?

As far as I can tell and I'm no expert, but there is no difference between the AE-23 12 volt battery and the A23 12 Volt battery. The popular brand companies use the A23 designator and off brand companies use the AE23 designator. Hope this helps

Nothing on the Amazon page or image says it's alkaline. Where does it indicate that it's alkaline?

if you llok close up on the battery its says alkaline on it. you may not see it in this picture, but if you look at other A 23 energizer picture you will see it.

what's the difference between the 23a and 27a batteries?

Google this " List_of_battery_sizes " (where I got answer). The A23 is 2/100 of longer" and 9/100" wider. So a 27a should fit where a 23a does fits in most cases, but not necessary the other way round. Both are 12V DC so no harm to a device if either battery fits and works in your device.

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Energizer A23 Alkaline Batteries - 2 Batteries

Product ID: 49133892

Details

Battery capacity
12
Battery cell composition
Alkaline
Brand
Energizer
Number of batteries
2 CR123A
Recommended uses for product
Camera

⚡12V high voltage power

📏Compact 8.6x4.6x1 cm size

🔋Long-lasting alkaline chemistry

COP 35599

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Energize your essentials — never miss a moment!

TRUSTED BY MILLIONS - 4.6-star rating from over 47,000 users proves unbeatable reliability
ECO CONSCIOUS CHOICE - Environmentally preferable with easy disposal and no hazardous materials
POWER THAT KEEPS YOU MOVING - 12 volts of reliable energy for your keyless entry and smart devices
MINIATURE SIZE MAXIMUM IMPACT - Compact design fits seamlessly into watches, cameras, and remotes
LONG LASTING ALKALINE PERFORMANCE - High power-to-weight ratio ensures your devices stay powered longer

Energizer A23 Alkaline Batteries deliver 12 volts of dependable power in a compact form factor, ideal for keyless entry systems, cameras, and other small electronics. Featuring a high power-to-weight ratio and environmentally preferable materials, these batteries ensure long-lasting performance and responsible disposal. Trusted by tens of thousands of users worldwide, they keep your devices running smoothly and reliably.

Specifications

ASIN	B00004YK10
Amperage	23 Amps
Antenna Location	Camera
Battery Capacity	12
Battery Cell Type	Alkaline
Battery Weight	0.6 Ounces
Best Sellers Rank	1,553 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 244 in Disposable Household Batteries
Brand Name	Energizer
Compatible Phone Models	from heart-rate monitors, keyless entry and glucose monitors, to toys & games.
Customer Reviews	4.6 4.6 out of 5 stars (47,187)
Global Trade Identification Number	00039800110091, 00809143109690
Item Dimensions	8.6 x 4.6 x 1 centimetres
Item Weight	9 Grams
Manufacturer	Eveready Battery Co
Model Name	A23
Model Number	A23BPZ-2
Number of Batteries	2 CR123A batteries required. (included)
Reusability	Rechargeable
Unit Count	1 count
Voltage	12 Volts

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