Introducing Duracell Turbo Max. A revolutionary advancement in battery technology. Only battery with Hi-Density Core™ Technology for unbeatable long-lasting power Only battery with PowerCheck™. Instantly check your power level at any time Duralock Power Preserve™ Technology. Guaranteed for 10 years in storage Turbo Max batteries are ideal for use in many battery powered devices, including: Portable Electronics Wireless Mice Toys Remote controls Flashlights Calculators Clocks and Radios Keyboards and more *Based on Hi-Density Core™ and PowerCheck™