Energizer Universal Charger

Energizer Universal Charger is a versatile, fast-charging station designed for NiMH rechargeable batteries of all standard sizes (AA, AAA, C, D, and 9V), ideal for home healthcare and clinical settings using multiple medical device types . Key specifications: charges 4 AA batteries in approximately 5 hours; accommodates 2 or 4 AA, AAA, C, or D batteries or 1 or 2 9V batteries simultaneously; LED light bar shows real-time charging status; built-in safety features include auto shut-off (Delta V cutoff), reverse polarity protection, bad battery detection, and overcharge protection . Features compact design with built-in adapter and detachable cord for easy storage; ENERGY STAR certified for energy efficiency . Compatible with all standard NiMH batteries (Energizer Recharge batteries recommended). For clinicians, this charger is indicated for NiMH batteries only—do not use with alkaline, carbon zinc, lithium, or NiCd batteries. WARNING: For indoor use only. Not intended for use by young children without supervision. Never use extension cords .
Description

Energizer Universal Charger 

PRIMARY USES

1.  All-in-One Charging Solution for Multiple Medical Device Battery Sizes
Primary Use: Provides a versatile charging station for NiMH rechargeable batteries of all standard sizes (AA, AAA, C, D, and 9V) used across various medical devices in home healthcare and clinical settings, eliminating the need for multiple dedicated chargers .
How it helps: For the home healthcare patient and clinical equipment manager, different medical devices require different battery sizes—blood pressure monitors and pulse oximeters often use AA batteries, digital thermometers use AAA batteries, while some diagnostic equipment uses 9V batteries. This universal charger consolidates all charging needs into a single device, reducing clutter and simplifying battery management. The charger can accommodate 2 or 4 AA, AAA, C, or D batteries simultaneously, or 1 or 2 9V batteries at a time . For the patient or clinic, this means one charger serves all rechargeable NiMH battery needs across multiple devices.
2. Fast Charging for High-Drain Medical Devices
Primary Use: Delivers a full-capacity charge to 4 AA batteries in approximately 5 hours, with LED status indicators providing real-time charging updates, ensuring that batteries for frequently used medical devices are ready when needed .
How it helps: For the patient managing daily health monitoring and the caregiver rotating between multiple devices, waiting for batteries to charge can be inconvenient. This charger charges 4 AA batteries in just 5 hours, significantly faster than basic overnight chargers . The integrated LED light bar displays charging status at a glance, eliminating guesswork about when batteries are ready . For the home healthcare patient using daily blood pressure monitors or pulse oximeters, this means batteries can be charged quickly between uses, minimising downtime.
3. Safety Features Protecting Sensitive Medical Equipment
Primary Use: Equipped with multiple safety protections including auto shut-off (Delta V cutoff), reverse polarity protection, bad battery detection, overcharge protection, and a safety timer, ensuring safe charging for batteries used in sensitive medical devices .
How it helps: For the biomedical engineer and patient, battery malfunction or overcharging can damage sensitive medical equipment or create safety hazards. The Universal Charger automatically shuts off the circuit when batteries are fully charged, preventing overcharging that can shorten battery life or cause leakage . Reverse polarity protection prevents damage from incorrectly inserted batteries, while bad battery detection identifies unsuitable batteries before charging begins . For the patient using expensive medical equipment, these features provide peace of mind that batteries are being charged safely and reliably.
4. Compact Design for Clinic and Home Storage
Primary Use: Features a built-in adapter and detachable cord for easy storage when not in use, with a sleek, compact form factor (approximately 2.8″D x 5.1″W x 11.6″H) that fits easily on counters, in supply closets, or in home healthcare bags .
How it helps: For the clinic supply manager and home healthcare patient, storage space is often limited. The integrated adapter and detachable cord allow the charger to be stored neatly without bulky attached power cords, while the compact design occupies minimal counter space . For the mobile clinician visiting patients at home, the portable design makes it easy to transport in medical bags or kit boxes.

SECONDARY USES

1. Charging batteries for portable communication devices in healthcare facilities: For home healthcare patients and small clinics, the charger maintains fresh batteries for portable two-way radios used by caregivers, eliminating ongoing battery procurement costs.
2. Maintaining batteries for laboratory and diagnostic equipment: For medical laboratories and research facilities, this charger keeps NiMH batteries ready for timers, measurement devices, and portable diagnostic tools.
3. Powering children’s medical education devices: For paediatric practices and child life programmes, the charger maintains fresh batteries for interactive medical education toys and anatomical models.
4. Emergency preparedness for home healthcare: For patients managing chronic conditions at home, having a universal charger ensures that backup batteries for monitoring equipment are always ready without maintaining large disposable battery inventories.
5. Clinic supply room battery management: For small medical practices, this charger provides a simple, cost-effective solution for maintaining a supply of fresh rechargeable batteries for diagnostic equipment.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: AC-powered universal battery charger for NiMH rechargeable batteries; not a medical device
  • Designation: Energizer Recharge Universal Charger, Energizer Universal Charger; Model: CHFC, CHFC3, CHFC2 (regional variants)
  • Compatible Battery Types: NiMH (Nickel-Metal Hydride) and NiCd (Nickel-Cadmium) rechargeable batteries ONLY 
  • Incompatible Batteries: Alkaline, Carbon Zinc, Lithium, or any other type not specified—DO NOT ATTEMPT TO CHARGE 
  • Compatible Battery Sizes: AA, AAA, C, D, and 9V 
  • Unique Feature: Universal compatibility across all standard battery sizes; fast charging (5 hours for 4 AA batteries); LED light bar status indicator; multiple safety protections

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Charging Capability: 2 or 4 AA, AAA, C, or D NiMH batteries; 1 or 2 9V NiMH batteries simultaneously 
  • Charge Time (AA 2000 mAh): 2-4 hours 
  • Charge Time (AA 2300 mAh): 3-6 hours 
  • Charge Time (4 AA batteries): Approximately 5 hours 
  • Charge Time (AAA 700-800 mAh): Approximately 3 hours 
  • Charge Time (C/D 2500 mAh): 3-5 hours 
  • Charge Time (9V 175 mAh): Approximately 6 hours 
  • Input: Standard AC wall outlet (100-240V compatible) via AC adapter 
  • AC Adapter Output: 18V DC, 500 mA 
  • LED Indicators: LED light bar displays real-time charging status; red LED indicates charging in progress; green indicates trickle charge/maintenance mode (for AA/AAA/C/D) 
  • Safety Features: Auto shut-off (Delta V cutoff), reverse polarity protection, bad battery detection, primary battery detection, short circuit protection, safety timer to prevent overcharging 
  • Trickle Charge: Maintains batteries at full capacity after charging complete (AA/AAA/C/D only) 
  • Dimensions: Approximately 2.84" D x 5.08" W x 11.58" H (72mm x 129mm x 294mm) 
  • Weight: Approximately 0.06-0.93 lbs depending on packaging variant 
  • Certifications: ENERGY STAR certified ; RoHS compliant

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Preparation: Remove batteries from packaging. Open safety cover by pressing "OPEN" button .
  • Usage Instructions: Connect AC adapter output plug to charger. Insert batteries respecting polarity (+/-) symbols marked inside compartments. Do not mix battery sizes or capacities in the same channel while charging . Plug charger into household outlet. Red LED illuminates indicating charging in progress. For AA/AAA/C/D batteries, red LED turns off and green LED illuminates when charging complete (trickle mode). For 9V batteries, remove manually after charging as red LED does not switch off . Always unplug charger from outlet after use and remove batteries .
  • Storage Conditions: Store in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and humidity. Built-in adapter and detachable cord allow for compact storage when not in use .
  • Portion Size: Accepts 2 or 4 batteries depending on size. For 9V, accepts 1 or 2 batteries .

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Allergens: None. No latex. No known allergens in charger construction.
  • Battery Ingestion Hazard (Batteries): Immediate medical emergency. If a battery is swallowed, seek immediate medical attention. Call 202-625-3333 collect day or night for battery ingestion.
  • Choking Hazard: Batteries can lodge in the esophagus of infants and small children if swallowed. Keep out of reach of children.
  • Electrical Safety: For indoor use only. Do not expose to rain, snow, or excessive moisture. Do not operate charger if it has been subjected to shock or damage . Never use an extension cord or any attachment not recommended by Energizer .
  • Charger Safety: Do not disassemble the charger. Incorrect reassembly may result in risk of electric shock or fire . Always unplug from outlet before attempting maintenance or cleaning . Never alter the plug provided .
  • Battery Safety: Charge only NiMH or NiCd rechargeable batteries. NEVER attempt to charge Alkaline, Carbon Zinc, Lithium, or other battery types as this can cause leakage, rupture, explosion, or fire . Do not charge NiCd and NiMH batteries together . Do not charge batteries with different capacities together .
  • Supervision: Not intended for use by young children or infirm persons without supervision .
  • Disposal: Dispose of in accordance with local regulations. Rechargeable batteries contain recyclable materials.
  • Warranty: Limited lifetime warranty for original purchaser .
  • Quality Assurance: Manufactured under ANSI and IEC standards.

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store charger in a cool, dry location when not in use. Do not store with batteries inserted. Built-in adapter and detachable cord allow for compact storage .
  • Inspection: Do not use charger if cords or casing are damaged. Do not use batteries that are leaking, corroded, swollen, or have damaged casings.
  • Handling: Always unplug charger before cleaning. Never use as a power source for electrical equipment (not a power supply) . Do not alter the plug provided—improper connection can result in risk of electric shock .
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

  • Battery ingestion: Batteries are a serious ingestion hazard for infants and young children. If a battery is swallowed, seek immediate medical attention. Call the National Battery Ingestion Hotline at 202-625-3333 collect day or night for advice and follow-up.
  • Keep out of reach of children: Store charger and batteries in original packaging or in a secure container that children cannot open. Keep new, used, and charging batteries out of reach of children at all times.
  • For NiMH/NiCd batteries only: This charger is designed for NiMH and NiCd rechargeable batteries only. NEVER attempt to charge Alkaline, Carbon Zinc, Lithium, or other battery types as this can cause leakage, rupture, explosion, or fire . Do not charge NiCd and NiMH batteries together .
  • Use as directed: Do not charge batteries with different capacities together. Do not mix battery sizes in the same channel while charging .
  • No extension cords: Plug directly into wall outlet. Never use extension cords or attachments not approved by Energizer, as this may result in fire, electrical shock, or injury .
  • Indoor use only: Do not expose to rain, snow, or excessive moisture. Do not operate in damp or wet locations .
  • Do not disassemble: Do not open the charger casing. No user-serviceable parts inside. Take to qualified serviceman for repair if damaged .
  • Unplug before cleaning: Always disconnect charger from wall outlet before attempting any maintenance or cleaning .
  • Do not use as power supply: Never use this charger as a power source for any electrical equipment. It is designed solely for charging batteries .
  • Leakage precautions: If a battery leaks, avoid contact with skin, eyes, and clothing. Electrolyte can cause burns. Ventilate area. Dispose of leaking batteries properly.

2. FIRST AID MEASURES

  • Battery Ingestion: Do not induce vomiting. Do not give food or drink. Seek immediate medical attention. Call the National Battery Ingestion Hotline at 202-625-3333 collect day or night for advice and follow-up. Do not delay—severe injuries can occur within 2 hours.
  • Eye contact (battery leakage): Contents of an open battery can cause severe irritation and chemical burns. If battery ruptures and contents contact eyes, rinse immediately with plenty of lukewarm water for a minimum of 15 minutes, lifting upper and lower lids. Get immediate medical attention.
  • Skin contact (battery leakage): Contents of an open battery can cause skin irritation and chemical burns. Wash skin with soap and water for at least 15 minutes. If irritation persists or burns are present, seek medical attention.
  • Electrical shock (charger): If electrical shock occurs, disconnect power immediately. Seek medical attention if symptoms develop.

3. FIRE FIGHTING MEASURES

  • Flammability (Charger): Charger casing is made of combustible plastic. Will burn if exposed to open flame.
  • Flammability (Batteries): NiMH 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: For small fires, use appropriate extinguisher. For large fires, evacuate area. Do not throw batteries into fire as they may leak or rupture. Firefighters should wear self-contained breathing apparatus (SCBA) and full protective gear.