Victron Energy BlueSolar MPPT Tr 150/70 Solar Charge Controller – 150V VOC, 70A, 12/24/36/48V MPPT Solar Regulator for Large Off-Grid Solar Arrays

Handles my 4kW array without breaking a sweat. Harvest is measurably better than the cheap PWM unit it replaced. Worth every penny.

Upgraded from a 30A controller to this 150/70 and the difference is night and day. Even on overcast days the MPPT tracking squeezes out usable power, and my battery bank now reaches full absorption by early afternoon. The 150V input headroom gave me flexibility to restring my panels. Bluetooth monitoring via a separate dongle keeps me informed from the house. Five stars, no hesitation.

This is a serious piece of equipment and it performs flawlessly on my 48V system. Charging efficiency is top notch and the unit barely gets warm even at high output. Be aware it needs the separate Bluetooth dongle for wireless monitoring, which is an extra cost. Wiring terminals require proper torque and good cable. Do your homework and it will reward you.

Third Victron product on my property and consistent excellence. The 70A output handles my expansion plans for years to come. Rock solid.

Performance is genuinely excellent and my array output jumped noticeably. I just assumed Bluetooth was built in like the Smart models, and it is not. Buy the dongle or plan on a display. Otherwise flawless.

Mounted outdoors in a ventilated enclosure through a full desert summer and a wet winter. Zero faults, zero downtime. The load output and configurable settings via VictronConnect on a laptop are very flexible. Happy customer.

I was nervous about spending this much on a controller, but the efficiency gains paid for the difference within a season. My generator runtime has dropped dramatically.

Fast MPPT tracking when clouds pass over means less lost production than my old Midnite unit. Firmware updates through the dongle add features too. Extremely satisfied.

Works well and charging is efficient. Setting up the multi-stage parameters took some digging through manuals and forums. Once dialed in, no complaints on performance.

The unit works, but at sustained high amperage in my hot garage it gets quite hot to the touch since there is no active cooling. I derated my array to keep it comfortable. It has not failed, but I expected better thermal management at this price point.