Do not assume household trash is appropriate
Programs differ by battery chemistry and jurisdiction.
Keep loose batteries organized
Store used batteries away from children and according to official local guidance while awaiting collection.
Use recognized collection points
Retail, municipal or producer-responsibility programs may accept particular battery types.
Check damaged batteries separately
Swollen, leaking or damaged batteries require specific local or manufacturer guidance rather than ordinary storage.
General household information only. Follow product labels and manufacturer instructions. Electrical, gas, structural, hazardous-material and other safety-critical work belongs to appropriately qualified professionals.