Panasonic Super Heavy Duty batteries combine advanced engineering technologies with high quality at a low cost. A key feature is the tough zinc-alloy can, which is not only stronger but also more resistant to corrosion. Best of all, no lead is added to the eco-friendly zinc-alloy can* for safe and convenient disposal and greater peace of mind.

Your devices are protected by the most advanced anti-leak battery technology with Panasonic Super Heavy Duty batteries. Structural weak points in conventional carbon zinc battery structure makes them prone to leakage. Panasonic’s robust design incorporates a stronger collector-rod sealing structure together with nylon inner-tube protection and a metallic outer can. The result is a far lower chance of structural failure and leakage.

Panasonic released its first mercury-free battery back in 1991. Now, it’s among the first manufacturers in the world to completely eliminate the use of lead* in its carbon zinc batteries. Panasonic Super Heavy Duty batteries have no added lead, cadmium, or mercury*. This gives peace of mind as you're using the product, and protects the environment after disposal.

Super Heavy Duty batteries are designed to work best in energy-efficient devices that use a small flow of current intermittently, like a TV remote control, or continuously, like a clock.