EnerSys published three range guides for products in its Varta “R” series of nickel cadmium (NiCd) batteries. The guides detail the RL (long duration), the RM (medium duration) and the RH (short duration) batteries for use in reserve power applications. The guide for the Varta “R” series batteries offer details on the batteries including a service life of up to 20 years and operation over a temperature range of –40 degrees C to 50 degrees C. The RM guide details the battery’s mix of high and low rates of discharge, the 11 Ah to 1250 Ah capacity range and cover backup times of 30 minutes to three hours. The third range guide, for the Varta RH line, provides information on their high rates of discharge over short periods of time. The guide states that Varta RH batteries have a capacity range of 10 Ah to 800 Ah, and cover backup times of one second to 30 minutes. EnerSys

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