Batteries - dry cell
Dry cell batteries are a common type of power source. Tiny dry cell batteries are sometimes called button batteries.
This article discusses the harmful effects from swallowing a dry cell battery (including button batteries) or breathing in large amounts of dust or smoke from burning batteries.
This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call your local emergency number (such as 911), or your local poison center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.
Acidic dry cell batteries contain:
- Manganese dioxide
- Ammonium chloride
Alkaline dry cell batteries contain:
- Sodium hydroxide
- Potassium hydroxide
Lithium dioxide dry cell batteries contain:
Dry cell batteries are used to power a variety of different items. Small dry cell batteries may be used to power watches and calculators, while larger ones (for example, size "D" batteries) can be used in items such as flashlights.
Symptoms depend on what type of battery is swallowed.
Symptoms of acidic dry cell battery poisoning include:
Symptoms that can result from breathing in large amounts of the acidic battery, or contents, dust, and smoke from burning batteries include:
- Decreased mental ability
- Difficulty sleeping
- Muscle cramps
- Slurred speech
- Weakness in the legs
- Itching skin
- Numbness of the fingers or toes
- Spastic walk
Symptoms of alkaline battery poisoning may include:
- Severe pain in the mouth
- Inability to breathe due to the throat swelling shut
- Severe pain in the throat
- Severe abdominal pain
- Rapid drop in blood pressure
Immediate emergency treatment is needed after a battery is swallowed.
Get medical help right away. DO NOT make a person throw up unless told to do so by poison control or a health care provider. Immediately give the person water or milk, unless instructed otherwise by a provider.
If the person breathed in fumes from the battery, immediately move him or her to fresh air.
If the battery broke and contents touched the eyes or skin, wash the area with water for 15 minutes.
Before Calling Emergency
Get the following information:
- Person's age, weight, and condition
- Type of battery
- Time it was swallowed
- Amount swallowed
Your local poison center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States. This hotline number will let you talk to experts in poisoning. They will give you further instructions.
This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does not need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.
What to Expect at the Emergency Room
Take the battery with you to the hospital, if possible.
The provider will measure and monitor the person's vital signs, including temperature, pulse, breathing rate, and blood pressure.
The person will need immediate x-rays to make sure the battery is not stuck in the esophagus. Most swallowed batteries that pass through the esophagus will pass in the stool without complication. However, if a battery gets stuck in the esophagus, it can cause a hole in the esophagus very quickly.
The person may receive:
- Bronchoscopy. Camera and tube placed down the throat into the lungs and airways to remove a battery that is stuck in the respiratory tract.
- Upper endoscopy. A tube and camera through the mouth into the esophagus and stomach to remove a battery stuck in the swallowing tube (esophagus).
- X-rays to look for the battery.
Symptoms will be treated as appropriate.
How well a person does depends on the amount of poison swallowed and how quickly treatment was received. The faster a person gets medical help, the better the chance for recovery. Full recovery is often possible if treated quickly.
Serious problems are most often seen only following industrial accidents. Most household exposures (such as licking some liquid from a leaking battery or swallowing a button battery) are minor. If a large battery does not pass through the intestinal tract within a limited period of time and is causing bowel blockage or threatens to leak, a surgical procedure with general anesthesia may be needed.
Hostetler MA. Gastrointestinal disorders. In: Marx JA, Hockberger RS, Walls RM, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 172.