Duracell Procell MN1604 Alkaline Batteries. Procell batteries are dependable, long-lasting Duracell batteries that are specifically labelled and packaged for the professional/industrial market place. Packaged in boxes of 10 Suitable for use in: Pro audio and camera equipment, Smoke alarms, Testing and measurement equipment, Tools, Remote controls & Torches. Procell 9V MN1604 cells offer comparable reliability and longevity to their Duracell-branded counterparts and can be used both in standard applications and as part of a battery pack. A standard non-rechargeable alkaline cell, the Procell 9V battery contains no added mercury. Boxed-product Weight: 907g. Nominal Voltage : 9V, Operating Voltage : 9.6V - 4.8V, Capacity : 550mAh 0.55Ah, System : Alkaline Manganese Dioxide. With an operating temperature range of between -20C and 54C.