Duracell Coppertop batteries. Extra power when needed with PowerBoost™ technology. Power for everyday use in low, medium, and high drain devices including remote controls, toys, and flashlights. Duracell Coppertop batteries have a twelve-year shelf-life rating and offer superior leakage resistance for added safety. Primary batteries (non-rechargeable) are available in cell sizes AA, AAA, C, D and 9V. Battery energy capacitance is 1.5 volts (AA, AAA, C & D cells) and 9 volts. Available in case quantity purchase.