10 Best Rechargeable Batteries (Update 2022) Buyer’s Guide
Rechargeable batteries are a more cost-effective and environmentally friendly alternative to standard AA and AAA batteries. Standard batteries contain heavy metals, including mercury, lead, cadmium, and nickel, which can contaminate the environment when if not properly disposed of.
Every year in the United States alone, nearly 3 billion dry-cell batteries are purchased to power radios, toys, cell phones, watches, laptops, and a variety of other electronics (1). Rechargeable batteries reduce the need to purchase single-use batteries and decrease the number of heavy metals that wind up in landfills and dispersed in the air.