Do you know the difference between how to properly dispose of rechargeable batteries and alkaline batteries? Rechargeable batteries can be recharged up to 1,000 times, which make them an eco-friendly option for electronics like smartphones and cordless drills. But they contain toxic chemicals, like mercury and lead, and should not be thrown away in the household trash. You can recycle rechargeable batteries for free at stores like Lowe’s, Home Depot and Target. Alkaline batteries, on the other hand, can be thrown away in the trash: Companies like Duracell and Energizer have eliminated the mercury in the batteries, and they pose no risk in landfills. These batteries are impossible to recycle, so toss them into the trash when you need to dispose of them.