The CUL-approved Xtreme Charge X2 is designed to be a maintenance charger for any type of 12-volt lead-acid battery. Like its single-station sibling the XC100, Xtreme Charge X2 automatically determines the appropriate rate of charge based on the battery’s specific size and condition. It tests the battery continually for as long as it’s connected to the charger to determine the optimal bulk or float charge rate. The test step also incorporates a Bad Battery indication if it determines the battery is either faulty and cannot be re-charged or is below 7 volts. Its patented PulseTech process ensures that new batteries will stay in like-new condition while dramatically improving the performance and life expectancy of older batteries.