The Outback  Flexmax 80 maximum power point tracking charge controllers offers an efficient, safe, multi-stage recharging process that prolongs battery life and assures peak performance from a solar array. Each Outback Flexmax 80 charge controller allows customized battery recharging. With backlit LCD display screen with 80 characters has a memory that will hold the last 128 days of operational data. Voltage step-down capability allowing a higher PV array voltage configuration with a manual and auto-equalize cycle for the batteries. Each Outback Flexmax 80 Charge Controller also features Continuous Maximum Power Point Tracking (MPPT), which seeks out the maximum power available from a solar array and uses it to recharge the batteries. Without this feature, the solar array does not operate at the ideal operating voltage and can only recharge at the level of the battery voltage itself. Each Charge Controller continuously tracks the array’s maximum operating power.