Munich, Germany — (METERING.COM) — November 10, 2010 – High-tech battery manufacturer Saft has launched new additions to its range of primary lithium batteries in the form of two new D-size cells designed for metering and other electronic applications.
These are the new generation LSH20 cell offering enhanced autonomy and long service life for metering and military radio communications equipment, and the Friwo brand M20Ex intrinsically safe cells for use in potentially explosive atmospheres such as in smart gas meters with GPRS communication.
The LSH20 lithium-thionyl chloride (Li-SOCl2) cylindrical D-size cells have a nominal voltage of 3.6 V, and a nominal capacity of 15 Ah (at +20°C, under a 15 mA discharge to a 2.0 V cut-off), up from the 13Ah of the previous generation. The cell can be used over the temperature range -60°C to +85°C, and the self discharge rate is less than 3 percent per year of storage at +20°C.
The new generation LSH20 features the same interfaces as previous models, making the upgrade simple and straightforward.
The Friwo brand M20Ex lithium manganese dioxide (Li-MnO2) cell has been designed in compliance with the IEC 60079-11 standard (Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “I”), and offers a T4 rating at +70°C, a nominal capacity of 12.4 Ah (at +20°C, under a 150 mA discharge) and a pulse capability up to 8 A. The self discharge rate is less than 1 percent per year of storage at +20°C, and the operational temperature range is from -40°C to +70°C.
Both cells feature a spiral electrode construction designed for high pulse applications and are of industrial design, with stainless steel container, glass to metal seal, laser welding and safety vent for long shelf life.