MPPT Solar Charge Controller Victron SmartSolar 150/70-Tr — 150V PV input, 70A battery charge

The Victron SmartSolar 150/70-Tr MPPT solar charge controller accepts up to 150 V PV input and provides up to 70 A of battery charging current. Designed for off‑grid and hybrid PV systems, this MPPT regulator continuously tracks the maximum power point of connected solar panels to maximise energy harvest. It includes configurable multi‑stage charging to protect batteries, thermal management to maintain stable operation, and onboard communication ports for monitoring and integration with Victron systems and third‑party equipment.

Advantages

The SmartSolar 150/70-Tr improves charging efficiency by using Maximum Power Point Tracking algorithms that adapt to changing irradiance and temperature. Built‑in charge profiles and adjustable parameters allow safe and effective charging of lead‑acid and lithium battery banks. Integrated protection features and temperature compensation help prolong battery life and maintain reliable performance. Communication interfaces enable remote monitoring and configuration, making the unit suitable for coordinated energy systems.

Suitable for (tasks / use cases)

• Off‑grid residential and small commercial solar power systems
• Hybrid systems with battery storage and generator backup
• Systems requiring remote monitoring and configurable charge profiles
• PV installations with high open‑circuit panel voltages up to 150 V

Key specifications

• Maximum PV input voltage: 150 V
• Maximum charging current: 70 A
• MPPT algorithm for improved energy harvest under variable conditions
• Multi‑stage programmable battery charging with temperature compensation
• Onboard communication ports for monitoring and system integration
• Thermal management for reliable performance under load

How to use

Install the SmartSolar 150/70‑Tr according to established electrical safety standards and the manufacturer’s installation guidance. Connect the PV array, battery bank and load wiring observing correct polarity and cable sizing for the rated currents. Configure the battery charge profile and communication settings either locally or via supported remote monitoring tools before commissioning. Verify system voltages and operation during initial start‑up and periodically inspect connections and firmware updates as part of regular maintenance.

Usage recommendations

Place the controller where it has adequate ventilation and avoid direct exposure to moisture. Use appropriately rated cables and fuses to match the 70 A maximum charge current. Select battery charge settings that match the battery chemistry and follow battery manufacturer guidelines to optimise lifespan and performance.