Don’t throw your rechargeable batteries away! Or at least don’t do it knowingly.
Batteries can be hazardous to the environment if they are thrown away with the rest of your trash, so a New York law that just went into effect makes it illegal to “knowingly dispose of rechargeable batteries as solid waste at any time in the state.” If you do, you could be fined $50 for the first offense, $100 for the second, and $200 for the third if all three happen within one year.
But don’t worry, if you really want to get rid of them, some stores that cell batteries will also be collecting them for recycling. Try the Best Buy or Radio Shack.