Opus Tester Analyzer Battery Charger, 12V, Black Easy to read backlit display Flexibility to setup all channels at once, or to program any channel with any function Charge Test Discharge Recondition NiMH and NiCd AA AAA C and D batteries with included C&D adapter Four independent channels can be programmed as group or individually Second Generation design Version 2, six thermal monitors, 16 bit Delta-Sigma Analog to Digital Converter Rugged construction with extensive ventilation for the batteries and charging circuits