Household Hazardous Waste (HHW)
The City of Houston accepts lead-acid and rechargeable batteries at the Westpark Consumer Recycling Center and at the Environmental Service Centers.
Lead Acid batteries: those found in cars and boats as well as other motorized vehicles and equipment.
Rechargeable batteries: lithium - ion (Li-ION), nickel metal hydride (Ni-MH) and nickel cadmium (Ni-CD).
Alkaline batteries (AA, AAA, C, D ) and any other battery types not mentioned here. Most of the heavy metal has been removed from alkaline batteries, so it is ok to dispose of them in your regular household garbage. 9V and 6V batteries should have their terminals taped, then sealed in a plastic bag before tossing them in the trash.