What to Do if Your Dog Ate a Battery

In this guide

Remote controls, toys, watches and small electronics have made batteries a constant, easy-to-reach presence in most Indian homes, and a dog that chews into one is a genuine emergency rather than a wait-and-see situation, however calm the dog might seem in the moment.

Why batteries are dangerous

Most household batteries, whether cylindrical AA, AAA, C or D cells, or small button and coin batteries used in watches, remotes and hearing aids, contain corrosive material such as potassium or sodium hydroxide. If the casing is punctured or chewed, this material can cause serious chemical burns to the mouth, oesophagus and stomach. Button and coin batteries carry an additional danger: even without leaking, they can generate a small electrical current in the moist tissue of the mouth or gut, causing current-related tissue damage that can begin within thirty minutes.

How quickly damage can occur

Burns from a punctured or chewed battery can begin within one to two hours, and a lodged button battery can cause severe tissue injury in under thirty minutes. Some dogs show no obvious symptoms for hours even after significant damage has started, which is why a known or suspected battery ingestion should never be treated as a wait-and-see situation.

Symptoms to watch for

• Drooling or pawing at the mouth
• Visible grey-black residue on the teeth, gums or tongue
• Vomiting, sometimes with blood
• Difficulty or reluctance to swallow
• Signs of abdominal pain or discomfort
• Dark, tarry stools if there is internal bleeding
• Lethargy

What to do

If you see your dog chewing a battery or find a chewed one nearby, gently check the mouth for visible residue and rinse thoroughly with tap water for fifteen to twenty minutes if you see any, since this helps wash away corrosive material. Contact your vet or nearest emergency clinic immediately regardless of how your dog looks, and do not attempt to induce vomiting, since bringing corrosive material back up can cause further burns to the throat and mouth on the way out. Your vet will likely want to do an oral exam and take X-rays to locate the battery and decide whether it needs to be removed by endoscopy or surgery.

Prevention

Keep loose batteries, whether new or used, in a closed drawer rather than a bowl or open container, and secure battery compartments in remotes, toys and other electronics with tape if your dog has shown any interest in chewing them. Dispose of used batteries promptly rather than leaving them in a bin your dog can access, since a partially discharged battery can still leak and cause harm.

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