Product Details Procell Alkaline Constant 9V industrial batteries are specifically engineered to power low-drain professional devices that require a consistent, reliable current over extended periods of time. These batteries are the ideal choice for critical applications such as smoke and carbon monoxide detectors, where long-term performance is essential. Features Optimize your business expenses by up to 20% by utilizing the Procell dual portfolio—Procell Constant for low-drain devices and Procell Intense for high-drain applications. Improve operational efficiency by using up to 30% fewer batteries compared to average competition. Engineered to deliver longer-lasting power in low-drain professional devices, resulting in fewer replacements and lower maintenance labor costs. Reliable shelf life guaranteed for up to 5 years in storage. Manufactured with a superior cell design to ensure high-quality construction and consistent performance. Each battery is backed by a quality warranty for peace of mind in professional environments. Rigorous design, safety, and qualification standards that incorporate key elements of ANSI and IEC battery requirements. Economically packaged in bulk and individually date-coded to support effective inventory management and rotation. Developed in collaboration with global manufacturers to ensure peak performance within professional-grade equipment. Wide operating temperature range from -4°F to 129.2°F, suitable for various industrial environments. Downloads Spec Sheet