Victron 45A SmartSolar MPPT Solar Charge Controller

Victron 45A SmartSolar MPPT Solar Charge Controller

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SKU:
STK1180-45
SOLAR · MPPT CONTROLLER · 45A · COLD WEATHER

Victron SmartSolar MPPT 150/45 Solar Charge Controller

✓ Bluetooth Built-in✓ MPPT Technology✓ 150V Max PV✓ 45A Output✓ Cold Weather Rated
High-voltage MPPT controller for series panels and cold conditions — 150V max PV, 45A output

Manages high-voltage series solar arrays safely whilst delivering rapid 45A charging to your leisure battery bank. A generous 150V input threshold provides critical voltage headroom for series-connected panels, preventing sub-zero winter voltage spikes from damaging your system. Integrated Bluetooth enables precise wireless monitoring and customisable charging stages directly from your phone.

  • 150V max PV voltage — cold weather series panel ready
  • 45A output — handles large arrays (up to ~650W at 12V)
  • Built-in Bluetooth — VictronConnect app
  • MPPT — up to 30% more power than PWM
  • Series panel support — 4x 190W in series = 94V (safely under 150V)
  • Cold weather protection — VOC at -10°C still within range

⚡ Key Features

01Cold Weather Champion

At -10°C, panel VOC increases ~0.3%/°C below 25°C STC. 4x 190W in series = 94V STC, but ~104V at -10°C. The 150V limit handles this safely. A 100V controller would trip.

02Series Panel Support

Higher PV voltage means thinner cables and lower losses on long runs from roof to controller. Series connections are more efficient for larger arrays.

03Victron Tolerates Overcurrent

Victron controllers tolerate 30% overcurrent before damage, so 45A handles 58.5A max — covers 4x 190W (48.2A needed).

04BatteryLife Algorithm

Intelligent maintenance prevents the chronic undercharging that kills batteries in solar systems.

📊 Variants Compared

Controller Max PV Max Current 12V Power Best For Bluetooth
CONTROLLERS) Headers: Controller Max PV Max Current 12V Power Best For Bluetooth
Rows 75/15: 75V 15A 220W Single panel Yes
100/30 100V 30A 440W 2-3 panels Yes
100/50 100V 50A 700W 3-4 panels Yes
150/45 150V 45A 650W Series + cold weather Yes

🔧 Tech Specs

Shared
  • Model : SmartSolar MPPT 150/45
  • Max Charge Current : 45A
  • Max PV Voltage : 150V
  • Max PV Power (12V) : 650W
  • Max PV Power (24V) : 1300W
  • Bluetooth : Yes — built in
  • System Voltage : 12V/24V/48V auto-select
  • Efficiency : 98%
  • Dimensions : 46 x 152 x 32 mm
  • Weight : 0.18 kg
  • Warranty : 5 years

🔌 You Might Also Need

Solar Panels

4x 190W in series recommended

Solar Cable Kit

For 30A+ systems

Appliance cards

what this inverter can/can't run (with wattage and notes)

Example combinations

realistic multi-appliance scenarios

Comparison table

across all inverter sizes

Vendor: Victron Energy
Type: Solar
SKU: STK1180-45

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