Energizer A23 Batteries provide reliable power to your important gadgets. These mini batteries are compatible with a variety of devices, including your keyless entry system, bluetooth headsets and home security systems. Reach for these specialty batteries when you need replacement camera batteries or a new garage door opener battery. Miniature alkaline Energizer batteries contain zero mercury to reduce environmental impact. Count on Energizer, the #1 brand of specialty batteries, to deliver dependable, long lasting power to your devices.
Q: What type of battery chemistry is used?
A: The battery chemistry is Alkaline.
Q: How many batteries are included in the package?
A: There are two batteries included in the package.
Q: Are these batteries rechargeable?
A: No, these batteries are not rechargeable.
Q: Do these batteries contain mercury?
A: These miniature alkaline batteries contain zero mercury.
Q: Can these batteries be used for keyless entry systems?
A: Yes, these batteries are compatible with keyless entry systems.
Q: What voltage do these batteries provide?
A: These batteries provide 12 volts.
Q: Can I use the A23 in place of the A27?
A: Yes, it should be able to be interchanged. You need to check the specifications of your device.
Q: Which is it, Silver Oxide, as in text or Alkaline, as in picture?
A: The picture is correct.
Customers highly value the A23 Batteries (2 Pack) for their exceptional battery life and overall performance, noting their reliability. The batteries are also appreciated for their reasonable price and easy availability. Some customers have reported that they have not experienced leakage issues with these batteries.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Energizer A23 Batteries provide reliable power to your important gadgets. These mini batteries are compatible with a variety of devices, including your keyless entry system, bluetooth headsets and home security systems. Reach for these specialty batteries when you need replacement camera batteries or a new garage door opener battery. Miniature alkaline Energizer batteries contain zero mercury to reduce environmental impact. Count on Energizer, the #1 brand of specialty batteries, to deliver dependable, long lasting power to your devices.

Duracell Specialty Alkaline batteries are designed to provide reliable power to specialty devices like car alarms, key fobs, GPS trackers, remote controls, and other electronics. They are guaranteed against defects in material and workmanship, so you can be confident these batteries will be ready when you need them. From storm season to the holidays, Duracell is the number one trusted battery brand.

Power the devices you love with Energizer MAX Alkaline AA Batteries. These Energizer batteries fuel the technology that helps you live, work and play, whether you need remote batteries, clock batteries, or backup batteries for your child's favorite toys and games. Energizer's #1 longest-lasting MAX, these double A batteries keep your favorite devices running longer. Powerseal Technology helps protect your devices against damaging leaks for up to two years after these AA Energizer MAX Batteries are fully used. With a shelf life of up to 12 years in storage, these long lasting batteries are ready to keep your devices operating when you need them most. Depend on the power of Energizer MAX AA Batteries to power your everyday electronics.

Keep your electronics up and running with these Rayovac 815-16B4TBLFU AA batteries, which include 4 Fusion Advanced batteries. Compatible with a wide range of devices, the 1.5V batteries feature a 2500 mAh capacity for reliable performance.
| Pros for Energizer - A23 Batteries (2 Pack), Miniature Alkaline Small Batteries | |||
|---|---|---|---|
| Battery Life, Overall Performance, Price, Compatibility, Availability | There were no pros for this product— | Battery Life | Battery Life, Price, Overall Performance, Compatibility, Power |
| Cons for Energizer - A23 Batteries (2 Pack), Miniature Alkaline Small Batteries | |||
| Leakage | There were no cons for this product— | There were no cons for this product— | Leakage, Packaging, N/A |