Environmental Problems Regarding Electric Forklift Batteries
Electric forklifts are generally more stable and safer than diesel and gas powered lift trucks. Diesel and gasoline engines emit toxic exhaust and pose a risk of fire. Nevertheless, electric forklifts can be hazardous, as well. They have rechargeable batteries as their power source, and batteries can present risks to the environment as well as to personal safety. There are risks associated with the storage, disposal, use and manufacture of rechargeable batteries for lift trucks.
Manufacturing
Most lift truck batteries are made by placing lead plates into a solution of sulfuric acid. These are referred to as lead-acid rechargeable batteries. Lead is a toxin which, when utilized in manufacturing processes, poses hazards to water quality due to runoff and drainage. When lead enters a water system it could lead to a variety of health problems to living beings and can even lead to death. The sulfuric acid used in forklift batteries is harmful to skin and can result in severe burns. Sulfuric acid also produces noxious fumes that could cause damage to humans and the natural world.
Normal Use and Storage
When recharging, the lead-acid battery could produce hydrogen gas as a chemical byproduct. When recharging batteries for a lift truck or any other types of vehicle, smoking, sparks, heat and flames must be kept well away from the recharging place. The flammable hydrogen can lead to an explosion if ignited by flame or heat.
Sulfuric acid in the batteries can cause chemical burns if it touches the bare skin. This is not an issue during normal use of the battery, but if a battery is punctured or damaged, the acid can leak or spray, potentially burning anybody who is nearby.
Disposal
Improper disposal of lead-acid batteries must always be avoided. These batteries must be recycled properly or reused in new batteries so that the sulfuric acid can either be recycled or neutralized. To be able to prevent the serious environmental consequences of incorrect disposal, all lead-acid batteries sold or purchased in the United States include a "core charge" that will just be returned if the used battery is turned in.