Victron SmartSolar MPPT 150/35 Solar Charge Controller

The Victron SmartSolar MPPT 150/35 accepts up to 150V of PV input and delivers up to 35A of charging current, with built-in Bluetooth.

Thirty-five amps is the modest output in the 150V SmartSolar range, sitting well below the 70, 85 and 100 amp versions. That suits an array of a few panels rather than a full roof or deck. Matching controller output to array size avoids paying for capacity the panels will never produce.

Ultra-fast maximum power point tracking matters most when clouds, shade or a changing sun angle make panel voltage and current fluctuate. The controller keeps searching for the most productive operating point instead of leaving the array fixed at a less efficient voltage, which is where a cheaper PWM controller loses output.

Built-in Bluetooth handles configuration and live monitoring through VictronConnect, with VRM remote access on internet-connected Victron systems. It can recover deeply discharged batteries under supported conditions, and 150V of PV input allows a reasonable series string. Explore more solar charge controllers.

• 35A, the modest output in the 150V range
• Suits a few panels rather than a full array
• Tracking earns its keep under cloud and shade
• A PWM controller loses output in the same conditions