FlexMax80 FM80-150VDC Charge Controller FLEXmax MPPT Charge Controllers are the only choice when you demand a high performance, efficient and versatile charge controller for your advanced power system. The FLEXmax Charge Controllers are the revolution. Developed by OutBack Power, its features include support for a wide range of nominal battery voltages and the ability to step-down a higher voltage solar array to recharge a lower voltage battery bank. A built-in, backlit 80 character-display shows the current status and logged system performance data for the last 128 days at the touch of a button. The FLEXmax family of charge controllers is the latest advanced improvement in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Systems. The ground-breaking FLEXmax MPPT software algorithm is both continuous and active, it increase your photovoltaic array power yield up to 30% compared to non-MPPT controllers. With the technology of active cooling and intelligent thermal management cooling, the FLEXmax charge controllers can operate at their full maximum current rating in ambient temperatures as high as 104F (40C) (Optional Remote Temp Sensor Recommended for optimal operation- Sold separately). . Features: Built-in 128 days of Data Logging Programmable Auxiliary Control Output. Fully OutBack Network Integration Capable (with use of the OutBack HUB - Sold separately). Programmable Battery Voltages from 12 VDC to 60 VDC. Advanced Continuous Maximum Power Point Tracking Increases PV Array Output by up to 30%. Specifications: Nominal Battery Voltages: 12, 24, 36, 48