Housekeeping · 생활 안전

Used Batteries: 6 Steps to Identify, Insulate and Recycle Safely

Even a used battery can retain energy. Identify the chemistry, prevent terminal contact and use an appropriate local collection point.

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Wikimedia Commons · Lead holder / Wikimedia Commons, CC BY-SA 4.0 · CC BY-SA 4.0 ↗

It is easy to put old batteries into one bag, but cells of similar size can use very different chemistries and need different handling. This practical guide draws on US EPA safety guidance and Seoul municipal collection information; check your own municipality's current accepted categories.

Your try-it-at-home checklist

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1. Read the label first. Look for Alkaline, Lithium/Li, Li-ion, Ni-MH, button-cell markings and rechargeability. Do not infer battery chemistry from shape or colour alone.
2. Remove only batteries designed by the manufacturer for user replacement, following the manual. Never open, puncture or bend a built-in battery. For swelling, leakage or unusual heat, contact the manufacturer or local waste authority before using a normal drop-off bin.
3. Especially for lithium, rechargeable and coin cells, prevent metal terminals from touching other cells or keys. Cover terminals with non-conductive tape or individually bag batteries; avoid metallic tape and keep identifying labels readable.
4. Before collection, store batteries in a cool, dry place away from children, pets and metal objects. Do not crush, heat or accumulate them indefinitely; separate used from unused cells.
5. Keep batteries out of mixed paper/plastic recycling and find a collection channel that accepts the chemistry in your area. Seoul reports some collection points in apartment recycling areas and community centres; availability and accepted types must be verified locally.
6. Do not attempt to recharge, deliberately fully discharge or modify swollen, leaking, damaged or hot cells. Ask the manufacturer or local collection authority for special handling and follow the rules for your location.

US Environmental Protection AgencyUsed Household Batteries ↗Explains how household battery chemistries differ and advises protecting terminals, using battery-specific collection and handling damaged cells cautiously.US Environmental Protection AgencyUsed Lithium-Ion Batteries ↗Advises against municipal trash or mixed recycling for Li-ion, recommends isolated terminals and specialized collection.Seoul Metropolitan Government알쏭달쏭 헷갈리는 배터리 버리는 방법…이렇게 배출해요! ↗Published 2026-01-19; describes separate battery collection at some apartment recycling sites and community centres, insulating terminals and avoiding forced removal.Wikimedia CommonsFile:10180-AA-battery.jpg ↗Author Lead holder and CC BY-SA 4.0 checked for this illustrative comparison photo; no disposal action depicted.Wikimedia CommonsCommons: Reusing content outside Wikimedia — technical ↗Hotlinking from Wikimedia servers is permitted but does not waive attribution or file-specific license requirements.

Your try-it-at-home checklist

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