Emergency Preparedness: Batteries Not Included

Stack of alkaline batteries size AAA with selective focus.

Batteries power many of the things we use and rely on every day. They might also be the only available power source in an emergency.

Being prepared to power your personal need devices—things like cellphones, medical devices, and assistive technologies—during a power outage is a step toward individual resilience.

Planning for power outages can include creating an emergency supply of batteries and other power sources. Here are some things to know about batteries that can help you create a supply that meets your needs.

Battery Types & Kinds

Contemporary batteries come in two primary types (primary and secondary) and kinds (alkaline and lithium).(1) Other kinds of batteries are available to power small and low-power devices.

Primary vs. Secondary

The defining difference between primary and secondary batteries is the number of uses you get from them.

You use a primary battery once and then throw it away.

Secondary typically cost more than primary batteries. However, the expense is offset by their longevity. You can recharge a secondary battery, which means fewer batteries to throw away.

Lithium vs. Alkaline

Lithium and alkaline batteries share similarities but there are also some important differences.

Both kinds of batteries come in standard sizes and can power a variety of household devices. The big difference between the two chemistries is their shelf life.

Lithium batteries store more energy for longer than alkaline batteries. Lithium batteries last about twice as long as alkaline batteries. Their shelf life makes them a great choice for your emergency supply.

Battery Sizes

Batteries come in different sizes. Here are some of the most common.

AA (or double A) batteries are the most popular size. They’re used in things like carbon monoxide (CO) detectors and television remotes.

AAA (or triple A) batteries are another popular size of battery. They are a smaller version of AA. AAA batteries are often used in devices like flashlights and thermometers.

C and D batteries are larger and weightier than AA and AAA batteries. They are often used to power heavy-duty flashlights, portable radios, and camping lanterns.

Button cell or coin style batteries are often used to power small items like car key fobs, hearing aids, garage door openers, and toys.

Batteries come in other less common sizes too. Some are used as a backup power source in electrical devices like home security systems and for electronic devices like cellphones.

Take inventory of all devices you’ll need to power during an emergency. They might include flashlights, cellphones, and medical devices. Then identify the kinds and sizes of power sources (e.g., batteries) you need to power those devices. For example, you may want to purchase extra button cell or coin style batteries if you wear a hearing aid.

Battery Storage & Disposal

How you store your batteries can affect their shelf life.

  • Keep batteries in their original packaging. Keeping batteries in their packaging will protect them from humidity and contact with other batteries. A battery can short-circuit if it comes in contact with another battery.
  • Separate batteries by age and type. Store new and used and different types of batteries in separate containers or plastic bags labeled with the date you bought them. It’s best to use batteries of the same age when powering a device.
  • Store batteries in a cool, dry place. Keeping batteries at room temperature or colder will increase lifespan and performance. Humidity can cause condensation, corrosion, and leakage. If you want to store your batteries in a fridge, keep them in a vapor-proof container. Let them acclimatize to room temperature for at least 24 hours before use.
  • Keep them away from metal objects. If batteries contact with metal, they could short-circuit. Store your batteries in a container made of plastic, glass, wood, or any material that’s not metal. You can also use a specialized battery storage box.(2)

Every year in the United States, millions of single-use and rechargeable batteries are bought, used, and recycled or thrown away. Dispose of batteries based on their type and chemistry. Some batteries can cause a risk to safety and health if mismanaged at the end of their lives.(3)

Battery types are identified by marking and labeling, not by the battery’s shape or the color of the label. Certain types should NOT go in household garbage or recycling bins. Do not put button cell, coin, or lithium single-use batteries (check for the word “lithium” marked on the battery) in the trash or recycling bin. Instead, find a recycling location near you:

Visit the Environmental Protection Agency website for more information on what to do with used household batteries.

Resources

References

  1. https://www.bobvila.com/articles/types-of-batteries/
  2. https://www.panasonic-batteries.com/en/news/how-store-batteries
  3. https://www.epa.gov/recycle/used-household-batteries

Thanks in advance for your questions and comments on this Public Health Matters post. Please note that CDC does not give personal medical advice. If you are concerned you have a disease or condition, talk to your doctor.

Have a question for CDC? CDC-INFO (https://www.cdc.gov/cdc-info/index.html) offers live agents by phone and email to help you find the latest, reliable, and science-based health information on more than 750 health topics.

#PrepYourHealth for Power Outages

A young woman and boy make hand shadow puppets using a flashlight against a white wall.

October is Energy Awareness Month

Power outages (i.e., when the electrical power goes out unexpectedly) and precautionary power shutoffs are happening more often because of and to prevent emergencies. These emergencies include disasters, such as hurricanes and wildfires.

The U.S. Energy Information Administration (EIA) says, on average, U.S. electricity customers experienced just over 8 hours of electric power interruptions in 2020. That was the most since EIA began collecting electricity reliability data in 2013.(1)

The EIA further reported that customers in Alabama, Iowa, Connecticut, Oklahoma, and Louisiana experienced the most time with interrupted power in 2020. Severe weather was a factor in all these states.

  • Alabama experienced several hurricanes, including a direct hit from Hurricane Sally.
  • Tropical Storm Isaias left about 750,000 electricity customers in Connecticut without power. Some didn’t have power for over a week.
  • A derecho affected Iowa and other parts of the Midwest. It caused widespread power outages, damaged grid infrastructure, and forced the early retirement of Iowa’s only nuclear power plant.
  • An ice storm in October was to blame for widespread power outages across Oklahoma.
  • Louisiana experienced three hurricanes and two tropical storms.(1)

The impacts of power outages and power shutoffs are felt by everyone. Here are some ways you can prepare your health for a power outage.

Be Power Prepared

Be prepared to be without electricity during an emergency and, possibly, for several days after.

A power outage can affect people’s ability to use devices and the availability of refrigeration. This makes it especially important that people who rely on durable medical equipment and refrigerated medicines like insulin take steps to prepare. For example:

  • Identify emergency lighting, safe heating alternatives, and backup power sources for your mobile devices, appliances, and medical equipment.
  • Create an emergency power plan that includes model and serial numbers for your medical devices.
  • Read the user manual or contact the manufacturer to find out if your medical device is compatible with batteries or a generator.
  • Fully charge your cellphone, battery-powered medical devices, and backup power sources if you know a disaster, such as a hurricane, is coming.
  • If possible, buy manual alternatives for your electric devices that are portable, dependable, and durable. For example, a manual wheelchair, walker, or cane as a backup for an electric scooter.

Power outages can also put people at increased risk for post-disaster hazards, such as food and carbon monoxide poisoning.

The effects of emergencies, such as power outages, are experienced differently by different populations.

The places of our lives, including our neighborhoods and built environment, can influence our experience with emergencies.(2)

People who live in rural areas and places with an aging infrastructure may experience more frequent and longer-lasting power outages and face greater adversity because of it. They may also have limited access to the supplies they need to prepare for power outages.

Planning for Power Outages

People who use electricity- and battery-dependent assistive technology and medical devices must have an emergency power plan in case of a power outage.

Checklists are a way to break large jobs down into smaller chores. They can help you pack for a trip, grocery shop, and even prepare for emergencies.

The Americans with Disabilities Act (ADA) National Network’s emergency power planning checklist is for people who use electricity and battery-dependent assistive technology and medical devices. These include:

  • Breathing machines (e.g., respirators and ventilators).
  • Power wheelchairs and scooters.
  • Oxygen, suction, or home dialysis equipment.

The Food and Drug Administration’s “How to Prepare for and Handle Power Outages” guide for home medical device users is another useful planning resource. Use it to organize your medical device information, identify the supplies for the operation of your device, and know where to go or what to do during a power outage.

Health Care Preparedness

A power outage or shutoff can limit the operations of hospitals, outpatient clinics, pharmacies, and other patient-care facilities.

Healthcare facilities need electricity to care for patients, provide services, and “keep the lights on.” Since many facilities have resident populations, hygiene and feeding are also part of the electrical demand.

Resilience to power outages begins with the leadership at the facility. Here are some resources to help healthcare facilities plan for and respond to public health emergencies.

Additional resources to help healthcare systems and hospitals plan for public health emergencies are available on the CDC website.

Resources

References

  1. https://www.eia.gov/todayinenergy/detail.php?id=50316
  2. https://www.atsdr.cdc.gov/placeandhealth/howdoesPlaceaffectHealth.html

Thanks in advance for your questions and comments on this Public Health Matters post. Please note that CDC does not give personal medical advice. If you are concerned you have a disease or condition, talk to your doctor.

Have a question for CDC? CDC-INFO (http://www.cdc.gov/cdc-info/index.html) offers live agents by phone and email to help you find the latest, reliable, and science-based health information on more than 750 health topics.

The Power of Preparedness: Prepare Your Health

Group of people kneeling around a CPR dummy.

The devastating hurricanes of 2017 reminded us how important it is to prepare for disasters. These potentially life-threatening situations have real impacts on personal and public health. During Hurricane Irma, existing medical conditions and power outages increased the likelihood of death. Being prepared with supplies and an Emergency Action Plan can help you protect the health of your family until help arrives.

September is National Preparedness Month (#NatlPrep), and the perfect time of year to remind people of The Power of Preparedness. This year’s call-to-action of Prepare Your Health (#PrepYourHealth) and four weekly themes highlight the roles that individuals, state and local public health, and CDC play in creating community health resilience. It takes everyone “pulling in the same direction” to create families, communities, and a nation that can withstand, adapt to, and recover from personal and public health emergencies.

The first week focuses on personal preparedness, and the importance of nonperishable food, safe water, basic supplies, and the personal items you need to protect your health until help arrives.

Personal needs

A large-scale disaster or unexpected emergency can limit your access to food, safe water, and medical supplies for days or weeks. However, nearly half of adults in the U.S. do not have an emergency kit for their home; they don’t have the provisions, supplies, and equipment necessary to protect the health of their families in a disaster. This list will get you started:

  • Special foods—such as nutrition drinks—for people with dietary restrictions, food sensitivities and allergies, and medical conditions such as diabetes.
  • Prescription eyeglasses, contacts and lens solution
  • Medical alert identification bracelet or necklace
  • Change of clothes
  • Emergency tools (e.g., manual can opener; multi-use tool; plastic sheeting; etc.)
  • Durable medical equipment (e.g., walkers; nebulizers; glucose meters; etc.)
  • Medical supplies, including first aid kit
  • Pet supplies
  • Baby and childcare supplies

Prescriptions

The hands of an elderly man holding a pill organizer

Many people need daily medications and medical equipment. Nearly half of Americans take at least one prescription drug, and a quarter of Americans take three or more medications. A large-scale natural disaster, like a hurricane, could make it difficult to get prescription and over-the-counter medicines.  You and your family may need to rely on a prepared emergency supply. There are some basics to include:

  • A 7 to 10 day supply of prescription medications stored in a waterproof container.
  • An up-to-date list of all prescription medications, including dosage and the names of their generic equivalents, medical supply needs, and known allergies.
  • Over-the-counter medications, including pain and fever relievers, diuretics, antihistamines, and antidiarrheal medications stored in labeled, childproof containers.
  • A cooler and chemical ice packs for storing and keeping medicines cold in a power outage.

Paperwork

Over half of Americans do not have copies of important personal paperwork. Collect and protect documents such as insurance forms, and medical, vital, and immunization records. Here are some of the basics:

  • Health insurance and prescription cards
  • Shot records
  • Living wills and power of attorney forms
  • Vital records (e.g., birth and death certificates; adoption records)
  • User manuals, model and serial numbers, and contact information for the manufacturer of medical devices (e.g., blood glucose meters; nebulizers)
  • Hardcopies of your Emergency Action Plan

Power sources

A portable generator sitting outside in the snow.

A power outage can close pharmacies, disrupt medical services, and can be life threatening for over 2.5 million people who rely on electricity-dependent medical equipment. Be ready for a lengthy blackout with an emergency power plan and back up. You will need alternative power sources for your cellphone, refrigerator , and medical equipment. Here’s a checklist:

  • Extra batteries, including those for hearing aids, in standards sizes (e.g., AA and AAA)
  • Fully-charged rechargeable batteries for motorized scooters
  • Hand-crank radio with USB ports
  • Car chargers for electronic devices, including cell phones and breast pumps
  • A generator

Practical skills

Finally, it’s important to know some basic do-it-yourself skills to stay healthy and safe until help arrives. Here are the basics to get you started:

  • Call 911 in a life-threatening emergency
  • Get trained in cardiopulmonary resuscitation (CPR). If you do not know CPR, you can give hands-only CPR—uninterrupted chest compressions of 100 to 120 a minute—until help arrives.
  • Learn how to use an automated external defibrillator (AED).
  • Learn Handwashing is one of the best ways to protect yourself, your family, and others from getting sick.

The good news is that it is never too late to prepare for a public health emergency. You can take actions, make healthy choices, and download free resources to help you prepare for, adapt to, and cope with adversity.