Understanding battery typesIt's essential to understand the different types of batteries and their composition, as each type requires specific handling.Alkaline batteriesAlkaline batteries are one of the most common batteries in households and businesses. They are typically non-rechargeable and offer a stable and reliable source of power. These batteries are available in various sizes, including AA, AAA, C, D, and 9V.These batteries consist of zinc, manganese dioxide, and potassium hydroxide. Alkaline batteries are suitable for low- to moderate-power devices like remote controls, flashlights, clocks, toys, and small electronic gadgets. While they provide decent energy storage, they are not cost-effective for high-drain devices or long-term use.Button cellThese small, disc-shaped batteries are designed for compact devices that require a long-lasting and stable power supply. Some may contain mercury, silver oxide, or lithium.These batteries are found in watches, hearing aids, medical devices, calculators, and other small electronic devices. They are favored for their compact size and the ability to provide consistent power over extended periods.Lead-acidLead-acid batteries are among the oldest and most reliable rechargeable batteries. They are commonly used in automobiles and as backup power sources. They are known for delivering high bursts of energy and are cost-effective for high-current applications.These batteries contain lead plates and sulfuric acid. A chemical reaction between the two components creates electricity. Rechargeable batteriesRechargeable batteries offer a more sustainable and economical alternative to disposable batteries. They can be recharged and reused multiple times, reducing waste and the need for frequent replacements.These rechargeable batteries are found in electronics like laptops, smartphones, and power tools.Lithium-ion (Li-ion): These batteries are lightweight and have a high energy density. Li-ion batteries power a wide range of devices, including smartphones, laptops, tablets, digital cameras, power tools, and electric vehicles. They are favored for their long-lasting power and ability to handle high-drain applications.Nickel-metal hydride (NiMH): NiMH batteries are commonly used in cordless phones, digital cameras, portable gaming devices, and some power tools. They have a good energy density and are relatively environmentally friendly compared to other battery types.Nickel cadmium (NiCd): NiCd batteries were widely used in the past but have become less common due to environmental concerns related to cadmium. They are still found in older devices, emergency backup systems, and some power tools.Hazards of improper battery disposalImproper battery disposal can have severe consequences for the environment and human health.Batteries should never be thrown in the trash because of the hazards they pose. When they end up in landfills, they can leach harmful chemicals. For example, alkaline batteries can corrode and release zinc and manganese dioxide into the soil. Rechargeable batteries can release lithium, nickel, cadmium, and cobalt. Batteries of any type can contaminate water sources and potentially harm wildlife.Burning batteries is no solution. Smoke from these batteries releases toxic fumes into the air, further contributing to pollution and respiratory issues.Health consequences of improper battery disposalBatteries can harm human health if they aren’t cared for properly. Alkaline batteries can leak potassium hydroxide, a caustic alkaline, which can cause irritation and burns. Rechargeable batteries can contain nickel-cadmium, which can pose health risks. Cobalt and nickel in rechargeable batteries can cause skin irritation and respiratory issues. Leaking lead-acid batteries can cause neurological damage, developmental issues, and kidney damage. This is why batteries must be recycled or disposed of safely and responsibly., Your old and used car batteries can be recycled at Batteries Plus. Learn where to dispose of car batteries and other dead batteries and light bulbs., Batteries are a part of our daily lives; they power cars, phones, household devices, and much more! But improper disposal of batteries can be a possible fire hazard. Avoid putting batteries into dumpsters, trash cans, recycling bins, or compost bins. Instead, use these safe disposal tips: It’s best for the environment to take batteries to a retail recycler or a community household hazardous .