SmartSolar MPPT 150/45

The SmartSolar MPPT 150/45 is a Victron Energy solar charge controller. It uses Victron’s ultra-fast MPPT technology to maximize energy harvest from solar panels and efficiently recharge batteries. It is designed for 12V, 24V, 36V (software-configurable) or 48V systems.

The ultra-fast MPPT (Maximum Power Point Tracking) technology of the SmartSolar 150/45 optimizes energy harvesting from solar panels. It is particularly effective under cloudy skies or when light intensity varies continuously, improving energy harvesting by:

Up to 30 % compared to PWM charge controllers.Up to 10 % compared to slower MPPT controllers.In case of partial shading, an advanced algorithm detects the global maximum power point for continuous optimization.

The SmartSolar MPPT 150/45 features extensive electronic protections to ensure system safety:

Overheating protection and power reduction in case of high temperature.Short-circuit protection for PV inputs.Reverse polarity protection for PV inputs.Reverse current protection for PV inputs.

The maximum conversion efficiency of the SmartSolar MPPT 150/45 exceeds 98%. It can deliver its maximum output current up to an ambient temperature of 40°C without requiring a cooling fan.

The SmartSolar MPPT 150/45 has dimensions (height x width x depth) of 130 x 186 x 70 mm and weighs 1.25 kg.

The SmartSolar MPPT 150/45 can operate in a temperature range from -30 °C to +60 °C. It maintains its full nominal power up to 40 °C.

This charge controller can initiate charging even if the battery has been discharged to zero volts. It can also reconnect to a fully discharged Li-ion battery equipped with an integrated disconnection function.

Yes, the SmartSolar MPPT 150/45 has a fully programmable charging algorithm. It also offers eight pre-programmed algorithms that can be selected using a rotary switch.

The quiescent current of the SmartSolar MPPT 150/45 varies depending on the battery voltage:

12 V: 20 mA24 V: 15 mA48 V: 10 mA

The SmartSolar MPPT 150/45 automatically detects battery voltages of 12 V, 24 V, and 48 V. A software configuration is required to select a 36 V system.

The maximum rated PV power the controller can handle depends on the system voltage:

For a 12 V system: 650 WFor a 24 V system: 1300 WFor a 36 V system: 1950 WFor a 48 V system: 2600 WIf a higher PV power is connected, the controller will limit the input power.

The absolute maximum open-circuit voltage of solar panels (in the coldest conditions) is 150 V. The maximum start-up and operating voltage is 145 V. It is crucial not to exceed these values to avoid damaging the controller.

Yes, the SmartSolar MPPT 150/45 is compatible with lithium batteries. It can even reconnect to a fully discharged Li-ion battery if it has an integrated disconnection function.

Yes, it is possible to use a Smart Battery Sense or a BMV-712 Smart battery monitor to communicate battery voltage and temperature to one or more SmartSolar charge controllers via Bluetooth.

The SmartSolar MPPT 150/45 includes Bluetooth Smart, allowing configuration and monitoring via the VictronConnect app on your smartphone or tablet. It also features a VE.Direct port for wired connection to other Victron Energy GX devices or a PC.

The maximum nominal charging current of the SmartSolar MPPT 150/45 is 45 A.

Yes, the controller includes an internal temperature sensor that automatically compensates the absorption and float charge voltages based on battery temperature.

The SmartSolar MPPT 150/45 uses power terminals compatible with cables up to 16 mm² (or AWG 6).

For the controller to start charging, the solar panel (PV) voltage must exceed the battery voltage (Vbat) by 5 V. Subsequently, the minimum required PV voltage is Vbat + 1 V.

The SmartSolar MPPT 150/45 has an IP43 protection category for the electronic components and IP22 for the connection area. This means it is protected against solid objects larger than 1 mm and water splashes (IP43), and against solid objects larger than 12.5 mm and dripping water (IP22).