I have 3 batteries sitting in my garage. How do I dispose of them?

Throw them in the nearest pond or river.

I do hope you will not take the pinhead's advice and dump them someplace. No wonder so much of our world is polluted. All cities and most small towns have recycling centers. Many are incorporated into the local disposal site (dump) while others are part of whatever company contracts to pick up your trash. I'm sure your telephone book has a section on recycling and safe disposal of dangerous and toxic items. Start there and if you don't find what you need, look for auto repair or maintenance business and call to see if they can take them. As with tires, there may be a small fee for recycling the batteries. Many of the major chains have auto service departments and they might be able to help. In California there are pretty stiff fines if you are caught dumping tires, batteries or electronic items. I live in the country and have called the sheriff on people who think they can use my land for a dump. I recycle, so should they.

take them to an autozone

In my town you can take them to the town dump and pay 5$ to have them recycle them

some dumps have toxic waste disposal

Well in the library or hardware store of your town there should be a place to dispose of them, the next time you go simply ask the librarian or manager of the hardware store.

Check with your local recycling for household and hazardous waste. Many cities or counties have a drop-off location.

If there are no autoparts stores nearby that recycle, try your local car dealership or recycling center. Car batteries are recycled in many places - the lead is reused. Make sure if they are leaking that you don't touch the liquid or get it on anything - it's acidic and could cause a nasty burn.

Ahh yes take them to Advanced Auto... my dad has always done that since I can remember ...Im sure there might be other auto places that diposes car batteries..you could try calling to ask too..