Old auto batteries cannot simply be thrown away because they contain toxic substances, such as acid and lead. The lead makes them valuable to scrappers, though. So you can provide a service and earn money at the same time by collecting old auto batteries and selling them to a recycling facility.
Locate a place to store the auto batteries. In order to make money scrapping old auto batteries, you must collect enough to make it worth delivering them to the scrapping facility. You need an appropriate place to store them, such as a concrete-floored garage or shed. Old auto batteries can develop acid leaks, so they should be kept concrete to in case of a leak. Do not store them outdoors or you may run into problems with local zoning laws.
Place an ad on Craigslist for your local area, post notices on notice boards and spread the word among friends and co-workers. Most people like to support recycling efforts, so they may be happy to give you old auto batteries if they know you'll be recycling them.
Find the local recycling facility that offers the most money for scrap auto batteries. Auto batteries are purchased by scrappers because they contain reusable lead. If you have more than one facility in the area that purchases old auto batteries, compare the amounts they pay. Weigh this against the distance you must travel to deliver the batteries, as gas costs can offset a higher pay rate if a facility is too far away.
Once you have gathered a full load of batteries, bring them to the recycling facility. Wear safety glasses and gloves when handling the batteries to protect yourself from possible acid leaks. Protect the hauling vehicle by covering the cargo area with a plywood board covered by a tarp. This should be enough to protect the area from acid during transit. If they become damaged, they are easily replaced. Drop the batteries off and collect your cash.
Old auto batteries are hazardous when they are not disposed of properly. Besides their lead content, they also contain a significant amount of sulphuric acid. Wal-Mart Automotive suggests wearing safety glasses and gloves when handling old auto batteries as protection from possible leaks.