If you're certain your batteries are Alkaline or non-rechargable non-Lithium AA, AAA, C, D, or 9volt household batteries, then it's safe to dispose of them in the trash. If your batteries are mixed or if you have a very large quantity of batteries (more than 100 batteries) then bring to Batteries Plus Bulbs
($1/lb fee) or other stores which accept rechargable batteries (Lowes
, Best Buy
). All Alkaline batteries will have the word "Alkaline" on their casing.