How to recycle single use batteries?

Thanks for the info..I knew they were lead-acid, but oddly I have never dealt with them much as I hardly ever use anything with single use batteries. I have brought them to battery plus locations a couple of times. My local battery buyer wants car batteries ( I get the stink eye with motorcycle batteries), never asked about single use. My rural customer is wanting to avoid an $18/mo. fee for single use battery recycling that W.M. is demanding. I will accept them and find a more inclusive battery buyer. Still learning (slowly I'm afraid)...