Clore Automotive's Christie C1290 is designed to simultaneously charge up to six 12 Volt batteries in series at a 12 amp rate. It can output from 0-90 Volts at 12 amps, allowing it to charge up to 36 cells (six 12 volt batteries) to a final charging of 15 volts each. It features rate control switches that provide eight positions for coarse and fine control of charging output levels.
