In California it is illegal to throw any battery in the trash or recycling — single-use and rechargeable alike. Batteries can spark fires in trucks and facilities. Tape the terminals and take them to a household hazardous waste (HHW) site or a retail drop-off.
📷 Scan an item with your phoneHousehold Hazardous Waste drop-off events and permanent SAFE Collection Centers take all batteries. Many hardware and electronics stores (Home Depot, Lowe's, Best Buy, Staples) have front-of-store bins for rechargeable and lithium-ion batteries.
Put a piece of clear/duct tape over the terminals (the +/− ends), especially on 9V and lithium batteries, and store them in a non-conductive container (plastic, cardboard, glass) until drop-off.
Automotive and large lithium batteries go to HHW or an auto-parts retailer that accepts them — never curbside.
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Not sure about something else? Point your camera at it and Recyclens tells you the right bin.