This Rayovac 6V Heavy Duty battery is built to exceed performance demands of industrial applications;This Heavy Duty battery is ideal to power lanterns and other high-drain, frequent-use devices;This Rayovac 6V battery is designed to prevent damaging leaks within the battery. The mercury and cadmium-free meet EPA requirements for convenient landfill disposal;This Rayovac battery holds power for up to 10 years in storage;Recycle with us! Bring your old dead batteries to your local Batteries Plus location for proper disposal. Fees may apply.