The Procell Constant Power offers longer-lasting performance compared to previous AA Procell alkaline batteries in professional low-energy devices. Procell is the only brand that provides device-specific professional alkaline batteries. Millions of professional end users and leading original equipment manufacturers worldwide value Procell alkaline batteries for their quality, reliability, and performance, as well as their top-notch service. The batteries are suitable for a wide temperature range. Recommended for devices such as smoke and carbon monoxide detectors, security keypads, remote controls, wireless mice, keyboards, motion sensors, and flush meters.