The Outback FLEXmax 60 and FLEXmax 80 maximum power point tracking (MPPT) charge controllers enable your PV system to achieve its highest possible performance. Rated for up to 80 amps of DC output current, the MX60 and FLEXmax 80 can be used with battery systems from 12 to 80 VDC with a PV open circuit voltage as high as 140 VOC. The FLEXmax 60's and FLEXmax 80's setpoints are fully adjustable to allow use with virtually any battery type and charging profile. The FLEXmax 60 and FLEXmax 80 allows you to use a higher output voltage PV array with a lower battery voltage - such as charging a 24 VDC battery with a 48 VDC PV array. The four line, 80 character, backlit LCD display is used for programming and monitoring of the system's operation including built-in Data Logging with 64 days of memory.