Button and coin battery safety: prevention and what to do if swallowed (2026)
Short answer: treat a possibly swallowed button or coin battery as an emergency. Go to the ER or call 911 right away; the AAP says a 20 mm lithium coin battery stuck in the esophagus can burn through it within 2 hours. To prevent it, know which devices use these batteries, keep them out of reach with compartments taped or screwed shut, and tape up “dead” batteries before throwing them away.
Recalls checked November 10, 2026 on CPSC. We searched CPSC recalls with “battery” in the title announced since November 1, 2025: 53 were for battery-ingestion hazards, most for violating the federal button/coin battery standard (Reese’s Law). They included light-up toys, finger lights, costumes, tea lights, keychains and bike-lock keys; the latest was October 22, 2026. Our recall-check policy.
How this page was made: this is a research-based guide built from official safety guidance (AAP/HealthyChildren.org, CPSC, NHTSA, FDA), federal safety standards and recall records, linked at the bottom of the page. We haven’t tested these products ourselves, and we don’t give scores. Our methodology.
Not medical advice. This page explains product safety guidance. For questions about your child’s health, feeding or development, ask your pediatrician.
Quick answer
Short answer: treat a possibly swallowed button or coin battery as an emergency. Go to the ER or call 911 right away; the AAP says a 20 mm lithium coin battery stuck in the esophagus can burn through it within 2 hours.
Last updated Recalls checked 2026-11-10
Button and coin batteries power remotes, key fobs, scales, flameless candles, musical cards and light-up toys. The AAP[1][2][4] says thousands of children go to emergency departments each year after swallowing them, and symptoms can look like an ordinary illness. Here is how to prevent it and what to do in the first minutes.
What do I do if my child swallowed a battery?
- Go to the emergency room or call 911 right away (AAP[1][2][4]). Don’t wait for symptoms.
- While you wait, if your child is over 12 months and can swallow, the AAP says you can give 2 teaspoons of honey, up to 6 doses about 10 minutes apart. Nothing else to eat or drink.
- Tell the doctors it might be a lithium coin battery; an X-ray shows where it is (AAP).
- National Battery Ingestion Hotline: 800-498-8666; post it with your emergency numbers (AAP).
Batteries in the nose or ear also need urgent care; they can damage the eardrum or nasal septum (AAP).
Button batteries vs lithium coin batteries
| Button cell | Lithium coin cell | |
|---|---|---|
| Looks like | Small round button | Thinner, wider disc |
| Common in | Hearing aids, watches | Scales, key fobs, flameless candles, remotes |
| Voltage | Lower (often 1.5V) | Higher (3V); the AAP says higher voltage injures faster |
| Most dangerous | — | 20 mm (nickel-sized), about the size of a child’s esophagus |
The AAP explains that the battery generates a current in body fluids, producing a lye-like chemical that burns the tissue where it lodges. A “dead” battery still has enough charge to do this.
How do I prevent it?
- Make a list of devices that use these batteries; get down at your child’s level to look (AAP[1][2][4]).
- Choose products whose battery compartment needs a tool to open, and tape compartments on remotes and key fobs (AAP).
- Store devices out of reach; hang keys up; throw out musical cards or remove the battery (AAP).
- Dispose of used batteries wrapped in tape, in an outside trash can (AAP).
- Tell sitters, grandparents and older siblings (AAP).
The federal standard for button and coin batteries and products containing them (16 CFR part 1263, from Reese’s Law) took effect October 23, 2023: products must keep batteries from being accessed during foreseeable use and misuse, and battery packages made after September 21, 2024 need warning labels. Some batteries now have a bitter coating or a dye that turns blue with saliva (AAP). Recalls show many online products still fail the rule.
Who should skip this, and what to skip
No household with young children can skip this check; every home has these batteries somewhere.
- Light-up toys, finger lights and novelty items from unknown online sellers: Most of the 53 battery-ingestion recalls in our search were these.
- Loose spare coin batteries in a drawer: The AAP[1][2][4] says store them out of reach and sight.
- Musical greeting cards left with a toddler: The AAP[1][2][4] says throw them out or remove the battery.
The free or budget option
Prevention is nearly free: a roll of strong tape for battery doors, a high hook for keys, and a jar of honey for first aid (children over 12 months only). Choose products with screw-closed battery doors when you buy.
Frequently asked questions
How fast can a swallowed battery cause damage?
Can I give honey to a baby under 1?
What symptoms should I watch for?
What is Reese’s Law?
Sources
Safety guidance, standards and recall records come only from the official pages below, which we opened and read for this page. Retailer pages, if any, are used for price and specs only. This page lists no prices.
- AAP (HealthyChildren.org): What Parents Need to Know about Button Batteries and Lithium Coin Batteries, fetched Nov 10, 2026 (healthychildren.org)
- AAP (HealthyChildren.org): How Small Batteries Can Become Dangerous to Children, fetched Nov 10, 2026 (healthychildren.org)
- eCFR: 16 CFR part 1263, Safety Standard for Button Cell or Coin Batteries, fetched Nov 10, 2026 (ecfr.gov)
- AAP (HealthyChildren.org): Home Safety: Tips for Families With Young Children, fetched Nov 10, 2026 (healthychildren.org)
- AAP (HealthyChildren.org): How to Buy Safe Toys: A Parent's Guide, fetched Nov 10, 2026 (healthychildren.org)
- AAP (HealthyChildren.org): Choking Prevention for Babies & Children, fetched Nov 10, 2026 (healthychildren.org)
- CPSC recall database query (SaferProducts.gov API): “battery” recalls since 2025-11-01, run Nov 10, 2026 (saferproducts.gov)
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