Review on Efficient Solar Charging With 80A MPPT Charge Controller - Ideal For AGM, Sealed & Lithium Batteries by Kevin Baker

This solar charge controller is worthless. From day one, until 76 days later when it finally died, it has not performed well. The fan is loud, and the unit heats up terribly. It hardly tracks the necessary voltage, and often failed keeping the most available solar watts to charge our bank. I watched it steadily decrease in performance from 7kw a day, down to 1.5kw a day. Cleaned our panels regularly, and still no dice. The fan broke completely a few days ago and we ordered a Victron. Turns out that this Ampinvit was never doing its job since day one. Found out how well our system is built now that we have Victron. We are more than double power with same ratings. SAVE YOURSELF THE HASSLE AND BUY A BETTER ONE TO START WITH, TRUST ME. THESE SUCK!