Energizer A23

Energizer A23 is a miniature 12V alkaline battery designed for specialty medical and security devices requiring high voltage in a compact form factor. Key specifications: 12V nominal output; 50 mAh capacity; 10.3mm diameter; 28.5mm height; 8g weight; and 5-year shelf life at 21°C . Features zero added mercury construction with leakage-resistant sealing technology . Replacement compatibility includes 1181A, A23BP, DL21, DL23, MN-21B, MN21, and V23GA . For clinicians, this battery powers medical alert pendants (PERS), glucose monitors, and wireless medical equipment remote controls. Ingestion requires immediate medical attention (800-498-8666).

Description

ENERGIZER A23 

PRIMARY USES

1. Reliable High-Voltage Power for Wireless Medical Alert and Security Systems
Primary Use: Provides stable 12V DC power for medical alert pendants, personal emergency response systems (PERS), and wireless call buttons used by elderly or disabled individuals living independently, where consistent voltage output is essential for reliable emergency signal transmission.
How it helps: For the geriatrician and home health nurse, ensuring that medical alert devices function reliably is critical for patient safety and peace of mind. The Energizer A23 miniature alkaline battery delivers a nominal voltage of 12V in a compact 10.3mm diameter x 28.5mm height form factor, with a capacity of 50 mAh . This high-voltage output in a miniature size makes it the standard power source for wireless emergency transmitters . For the patient and caregiver, this means confidence that an emergency call will be transmitted when the button is pressed, even if the device has been sitting unused for extended periods.
2. Long Shelf Life for Backup Medical Equipment and Emergency Preparedness
Primary Use: Provides up to 5 years of shelf life at 21°C, making these batteries ideal for backup medical alert transmitters, emergency call systems, and home healthcare preparedness kits where infrequent replacement and immediate readiness are critical .
How it helps: For the hospital discharge planner and home care coordinator, medical alert devices are often stored for months before activation or use. The A23 battery holds power for up to three to five years in storage, ensuring it is ready when needed . For the patient, this means less frequent battery replacement and confidence that their emergency device will function when called upon.
3. Power Source for Portable Medical Diagnostic and Monitoring Devices
Primary Use: Powers portable medical devices requiring A23 batteries, including compact blood glucose monitors, handheld diagnostic tools, and portable medical keypads used in clinical and home settings .
How it helps: For the biomedical engineer and clinical equipment manager, portable diagnostic devices require compact power sources that deliver consistent voltage. The A23’s miniature size (10.3mm diameter, 28.5mm height, weighing only 8g) allows it to fit into small, handheld medical equipment where larger batteries cannot be accommodated . For the clinician and patient, this means reliable power for compact medical devices without compromising portability.
4. Zero-Mercury Construction for Environmentally Responsible Healthcare
Primary Use: Contains zero added mercury, complying with environmental regulations for disposal and reducing toxic exposure risk in healthcare settings, clinics, and home care environments .
How it helps: For the healthcare facility environmental safety officer, eliminating mercury from batteries reduces hazardous waste disposal requirements and environmental impact. The Energizer A23 is built with a unique sealing structure that assures excellent shelf life and resistance to leakage, further reducing environmental risks . For the healthcare facility, this means simplified disposal procedures while maintaining high-performance standards.

SECONDARY USES

1. Powering remote controls for medical equipment and adjustable beds: For healthcare facilities and home care settings, the A23 battery powers remote controls for hospital beds, adjustable mattresses, lift chairs, and other medical equipment where reliable connectivity is essential for patient comfort and caregiver efficiency.
2. Operation of wireless keypads for secure medical area access: Powers wireless keypads and access control devices used in medical office buildings, pharmacies, and restricted healthcare areas where secure entry is required.
3. Powering portable blood glucose monitor remote transmitters: For patients managing diabetes, the A23 battery powers wireless transmitters that send glucose readings from the meter to companion devices or remote displays.
4. Operation of small digital medical timers and interval counters: Powers digital timers used in physical therapy, rehabilitation timing, and medication interval tracking devices where the compact 12V battery is specified.
5. Portable electronic medical keyboards and data entry devices: Powers wireless medical keyboards and barcode scanners used in inventory management, patient identification, and electronic health record systems in outpatient clinics.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: Disposable, single-use, miniature alkaline battery, non-rechargeable .
  • Designation: Energizer A23, A23BPZ, A23BPZ2. NEDA 1181A, IEC 8LR932 .
  • Key Components: Alkaline manganese dioxide (Zn/MnO₂) chemistry. Zero added mercury .
  • Replacement Compatibility: 1181A, A23BP, DL21, DL23, MN-21B, MN21, V23GA .
  • Unique Feature: 12V output in miniature form factor; 5-year shelf life; zero-mercury construction .

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Nominal Voltage: 12 volts .
  • Physical Dimensions: Diameter 10.3 mm (0.405 inches). Height 28.5 mm (1.12 inches) .
  • Weight: 8 grams (0.28 oz.) .
  • Capacity: 50 mAh .
  • Terminal Type: Raised positive, flat negative; metal jacket construction .
  • Shelf Life: 3-5 years at 21°C depending on regional variant .
  • IEC Code: 8LR932 .
  • NEDA Code: 1181A .
  • Leakage Protection: Unique sealing structure providing excellent shelf life and resistance to leakage .

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Preparation: Remove from packaging. Check expiration date. No preparation required.
  • Usage Instructions: Insert battery matching polarity (+ and -) as indicated in device. Replace all batteries in a device at the same time. Do not mix old and new batteries. Do not mix different battery types or brands. Remove used batteries promptly.
  • Storage Conditions: Store in a cool, dry, well-ventilated area. Elevated temperatures shorten battery life. Do not store in direct sunlight or near heat sources. Avoid storage in high-humidity environments.
  • Portion Size: One A23 cell per device (most devices use a single battery).

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Allergens: None. No latex. No known allergens in battery construction.
  • Ingestion Hazard: Immediate medical emergency. A23 batteries are small enough to be swallowed by infants and young children and can cause severe esophageal burns.
  • Battery Ingestion Hotline: Call 800-498-8666 (US) or 202-625-3333 (collect) immediately for battery ingestion .
  • Choking Hazard: A23 miniature batteries can lodge in the esophagus of infants and small children if swallowed. Keep out of reach of children .
  • Leakage: Unique sealing structure provides leakage resistance. If leakage occurs, potassium hydroxide can cause skin and eye burns.
  • Short Circuit: Do not short circuit terminals. Prolonged short circuit can cause battery to lose energy and generate heat.
  • Disposal: Not hazardous waste per RCRA. Contains no added mercury. Dispose in accordance with local regulations .
  • Quality Assurance: Manufactured under ISO and ANSI standards.

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store in cool, dry, well-ventilated area away from direct sunlight, heat sources, and humidity. Elevated temperatures result in shortened battery life.
  • Shelf Life: 3-5 years at 21°C. Check expiration date printed on package .
  • Inspection: Do not use batteries that are leaking, corroded, swollen, or have damaged packaging. Do not use expired batteries.
  • Handling: Do not install backwards. Do not short circuit terminals. Do not crush, puncture, or disassemble. Do not expose to fire or temperatures above manufacturer limits.
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • Battery ingestion: A23 miniature batteries are a serious ingestion hazard for infants and young children due to their small size. If a battery is swallowed, it can become lodged in the esophagus and cause severe injury within hours. Seek immediate medical attention. Call the National Battery Ingestion Hotline at 800-498-8666 (US) or 202-625-3333 (collect) day or night for advice and follow-up .
  • Do not ingest: Battery contains potassium hydroxide which is corrosive and toxic if ingested.
  • Do not install backwards: Reversing polarity can cause leakage, rupture, or fire .
  • Do not charge: These batteries are not designed for recharging. Recharging can cause battery leakage, explosion, or fire .
  • Do not short circuit: Short circuit can cause the battery to lose energy and generate significant heat.
  • Do not disassemble, crush, puncture, or incinerate: Damaging a battery may result in internal short circuit, fire, or exposure to internal components .
  • Do not mix battery types: Do not mix old and new batteries, different brands, or different chemistries in the same device .
  • Do not expose to extreme heat: Do not place in fire, oven, microwave, or direct sunlight .
  • Replace all batteries at the same time: Replacing only some batteries can cause leakage or reduced performance .
  • Keep out of reach of children: Store batteries in original packaging or in a secure container that children cannot open .
  • Leakage precautions: If a battery leaks, avoid contact with skin, eyes, and clothing. Potassium hydroxide can cause burns. Ventilate area.

2. FIRST AID MEASURES

  • Ingestion: Do not induce vomiting. Do not give food or drink. Seek immediate medical attention. Call the National Battery Ingestion Hotline at 800-498-8666 (US) or 202-625-3333 (collect) day or night for advice and follow-up .
  • Eye contact (battery leakage/rupture): Contents of an open battery can cause severe eye irritation. If battery ruptures and contents contact eyes, rinse immediately with plenty of lukewarm water for a minimum of 15 minutes. Get immediate medical attention.
  • Skin contact (battery leakage/rupture): Contents of an open battery can cause skin irritation. Wash skin with soap and water for at least 15 minutes. If irritation persists, seek medical attention.
  • Inhalation (battery leakage/rupture): Contents of an open battery can cause respiratory irritation. Move to fresh air. If symptoms persist, seek medical attention.

3. FIRE FIGHTING MEASURES

  • Flammability: Alkaline batteries are combustible. Will burn if exposed to open flame .
  • Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide (CO₂).
Fire Response: Cool exterior of batteries if exposed to fire to prevent rupture. For small fires, use appropriate extinguisher. For large fires, evacuate area. Firefighters should wear self-contained breathing apparatus (SCBA) and full protective gear.