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 SmartSolar 150/45’s ultra-fast MPPT (Maximum Power Point Tracking) technology 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:

Overheat protection and power reduction in case of high temperature.
Short-circuit protection for PV input.
PV polarity reversal protection.
PV reverse current protection.

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 within 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 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 self-consumption 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 nominal 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 (under the coldest conditions) is 150 V. The maximum starting 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 disconnect 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 features Bluetooth Smart, enabling configuration and monitoring via the VictronConnect app on your smartphone or tablet. It also includes 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 has an internal temperature sensor that automatically compensates 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, 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).