The Energizer Ultimate Lithium batteries are the ideal choice for the modern consumer who seeks the best for their high-tech devices, such as digital cameras, smart home gadgets, and gaming controllers. With 33% less weight than regular alkaline batteries, they offer comfort in use without sacrificing power. Their durable construction allows operation in extreme temperatures from -40°C to 60°C, while the guaranteed leak protection ensures that your valuable devices will remain safe under any usage conditions.