The New Duracell Coppertop AAA 10 Count batteries with POWERBOOST Alkaline offer long-lasting power for high drain devices. With an expiration date of 2033 and a manufacturer warranty of 12 years, these AA batteries provide reliable performance. Manufactured in the United States, these batteries have a voltage of 1.5V and a chemical composition of alkaline, making them a reliable choice for various electronics and devices that require consistent power.