Interstate Batteries has introduced the 31-ECL (Extreme Cycle Life), a Group 31 combination of starting battery and cycling battery, to meet the cycling demands of the trucking industry. The 31-ECL is ideal for starting a diesel engine and meeting the high-cycle power demands of in-cab devices, such as heater/AC, telephones, TVs, VCRs, refrigerators, coffee pots and satellite systems. The 31P-ECL, like its predecessor, is designed especially for the cycling demands of long haul trucks and other heavy-duty applications.