MPPT Solar Charge Controller Victron Energy SmartSolar 150/35 — 150V input, 35A output

The Victron Energy SmartSolar 150/35 MPPT is a solar charge controller engineered to maximise energy harvest from photovoltaic arrays while providing controlled battery charging. It accepts PV input voltages up to 150 V and supplies up to 35 A of charging current. The controller implements Maximum Power Point Tracking (MPPT) to improve yield under varying irradiance and temperature conditions, and supports multiple battery chemistries with configurable charge profiles. Built-in protective features include overcharge protection, reverse polarity protection and thermal regulation to maintain reliable operation in off-grid, marine and mobile power systems.

Advantages

The SmartSolar 150/35 combines high input voltage capability with an MPPT algorithm that increases energy conversion efficiency compared with simple PWM controllers. Its 35 A output suits medium-sized PV arrays and battery banks, while configurable charge settings allow safe management of lead-acid and lithium battery types. Integrated safety functions limit risk from incorrect connections and overheating, and the unit supports remote monitoring and parameter adjustment when paired with compatible communication accessories.

Suitable for

Key specifications

How to use

Install the SmartSolar 150/35 following manufacturer guidelines for mounting and ventilation, ensuring correct cable sizing and secure DC connections between the PV array, controller and battery bank. Configure the battery type and charge parameters through the controller interface or via compatible Bluetooth/remote tools if available. Monitor battery voltage and charge current during initial operation and adjust settings as required to match the battery manufacturer’s recommendations. Observe all safety instructions to prevent incorrect polarity connection and to allow adequate cooling under high-load conditions.

Recommendations

For best performance, use PV modules whose open-circuit voltages under cold conditions do not exceed the 150 V limit and design the array, cabling and fusing to minimise voltage drop. Select battery charge parameters that match the battery manufacturer’s specifications and perform periodic inspection of connections and ventilation paths to ensure reliable, long-term operation.