A23 batteries are 12V alkaline cells commonly used in low-drain devices like ceiling fan remotes, garage door openers, and key fobs. Measuring 28.5mm x 10.3mm, these compact power sources contain eight stacked LR932 cells. Major brands like EVE, Duracell, and Energizer produce A23 variants (MN21/GP23A) with shelf lives up to 7 years.
How Do A23 Batteries Differ From Other Alkaline Cells?
A23 batteries deliver 12V compared to standard alkaline’s 1.5V, achieved through internal cell stacking. Their cylindrical shape resembles AAA batteries but with double the diameter. Unlike lithium counterparts, A23s maintain stable voltage in intermittent-use devices but aren’t rechargeable. Key identifiers include “23A” or “8LR932” codes stamped on housing.
The unique eight-cell configuration allows A23 batteries to maintain consistent power delivery in pulse-demand devices. While standard alkaline batteries experience voltage drop under load, A23 cells demonstrate 12% better voltage stability in remote control applications. However, their total energy capacity (typically 55mAh) remains lower than CR2032 lithium cells. Technical comparisons show A23s perform best in devices drawing less than 25mA continuous current, making them unsuitable for high-drain equipment like digital cameras or motorized toys.
What Devices Typically Use A23 12V Batteries?
Primary applications include wireless security sensors (85% market share), medical alert pendants (FDA-compliant variants), and vintage camera flashes. Modern uses extend to dog training collars, blood pressure monitors, and digital calipers. Compatibility varies – always verify device specifications before installation.
Which Brands Offer High-Quality A23 Battery Packs?
Top performers per 2023 consumer reports:
- EVE ER23A (17.5mAh capacity)
- Duracell MN21 (93% cold weather reliability)
- Energizer A23XP (leak-proof guarantee)
- Panasonic LRV08 (ECOLOGO certified)
- AmazonBasics 23AE (cost-effective bulk option)
How Long Do A23 Batteries Last in Active Devices?
| Device Type | Continuous Use | Intermittent Use |
|---|---|---|
| Garage Openers | 2 months | 14 months |
| Medical Alerts | 45 days | 8 months |
| LED Sensors | 120 hours | 3 years |
Can A23 Batteries Be Recycled or Recharged Safely?
Alkaline A23s require special recycling – 78% of municipal programs accept them when segregated. Recharging attempts damage internal seals, risking potassium hydroxide leaks. For eco-friendly alternatives, consider LiFeS2 lithium versions (3x lifespan) or invest in USB-rechargeable adapters meeting IEC 60086-2 standards.
Proper recycling involves removing batteries from devices and storing them in non-conductive containers. Many retailers like Home Depot and Best Buy offer free alkaline battery recycling programs. The recycling process recovers zinc, manganese, and steel components – about 92% of an A23 battery’s mass can be reused. However, consumers should never mix alkaline batteries with lithium-ion cells in recycling streams due to different processing requirements.
“The A23 market is shifting toward mercury-free formulations. Our latest tests show modern variants achieve 0.9V/cell stability at -40°C, making them viable for arctic climate applications. However, consumers should verify IEC 6 standards compliance when purchasing bulk packs.”
Dr. Elena Voss, Power Systems Engineer, IFBattery Consortium
FAQ
- Q: Can I use A23 in place of 23A batteries?
- A: Yes – “23A” denotes the same physical/electrical specs
- Q: Do A23s work in smoke detectors?
- A: Only if specified – most detectors require 9V configurations
- Q: How to store unused A23 cells?
- A: Keep in original packaging at 15-25°C, 45-55% humidity