Used lead acid batteries can be recycled in a variety of ways, the easiest is to return them to the seller. Sometime that's not cost efficient, so here's some options---
1) find a battery wholesaler in your area in the yellow pages and drop them off (sometimes they'll even pay you).
2) any retailer handling lead acid batteries---Sears-Walmart-Autozone or even Radio Shack.
3) you can also drop off @ a scrap yard if you have sizable amount and they will pay you.
4) In some parts of the County you have recycling centers and you can find them online or yellow pages.
We need to care for the environment and this is one way we can. You can always call us for further information at 856-228-3833. http://batterysupplyco.com/index.html