BlueSolar MPPT Charge Controllers 75/10, 75/15, 100/15, 100/20-48V
Introduction to MPPT Technology
The BlueSolar MPPT charge controllers feature ultra-fast Maximum Power Point Tracking (MPPT). Especially during cloudy conditions, when light intensity is constantly changing, an ultra-fast MPPT controller will improve energy yield by up to 30% compared to PWM charge controllers, and by up to 10% compared to slower MPPT controllers.
Key Features
Charge Output
The battery can be prevented from over-discharging by connecting all loads to the load output. This output will disconnect the load when the battery has been discharged to a pre-set voltage. Alternatively, an intelligent battery management algorithm can be selected: see BatteryLife. The load output is short-circuit proof. Some loads (inverters in particular) may be connected to the battery directly, and the inverter's remote control to the load output. A special interface cable may be needed; please consult the manual.
BatteryLife: Intelligent Battery Management
When a solar charge controller is not able to recharge the battery to its full capacity in a day, the result is that the battery is continuously cycled between the "partially charged" and "end of discharge" states. This operating mode (without periodic full recharging) can destroy a lead-acid battery within weeks or months. The BatteryLife algorithm will monitor the battery's state of charge and, if necessary, will step-by-step increase the load disconnect voltage (i.e. disconnect the load earlier) until the harvested energy is sufficient to fully recharge the battery to almost 100%. From that point onwards, the load disconnect voltage is modulated so that a nearly 100% charge is achieved about once a week.
Programmable Battery Charging Algorithm
Consult the Support and Downloads > Software section on the Victron Energy website for more information.
Day/Night Timer and Dim Light Functionality
Consult the Support and Downloads > Software section on the Victron Energy website for more information.
Programming and Visualization of Historical and Real-time Data
For ColorControl GX or other GX devices: consult the Venus documentation on the Victron Energy website. For a smartphone or other Bluetooth-enabled device: the VE.Direct Bluetooth Smart dongle is required.
Product Visual Description
The Victron Energy BlueSolar MPPT charge controllers are compact, blue rectangular devices. The MPPT 75/15 model features the Victron Energy logo and "BlueSolar charge controller MPPT 75/15" printed on its casing. It includes ports labeled "PV", "BATT", "LOAD", and "VE.Direct", along with LED indicators for power status and charging stages (e.g., Green LED: Power ON, Yellow LED: Bulk Charging (fast blink), Yellow LED: Absorption Charging (slow blink), Yellow LED: Float Charging (solid)). Another visible model, possibly an MPPT 70/15, shares a similar blue design with "MPPT 70 | 15" and "ACE IP43" markings, also featuring ports and LED indicators.
The accompanying mobile application screenshots display a user interface for monitoring solar power systems. One screen shows a prominent "425W" power reading, along with key parameters like Solar, Battery, Voltage, Current, and charging states (Bulk, Absorption, Float). Another screenshot illustrates historical data, presenting graphs and cumulative energy readings such as "Solar panel 941Wh" and "Total Since cleared 1215kWh", alongside detailed voltage and current measurements, indicating comprehensive system monitoring capabilities.
Technical Specifications
| MPPT 75/10 | MPPT 75/15 | MPPT 100/15 | MPPT 100/20-48V | |
|---|---|---|---|---|
| Battery voltage (auto select) | 12/24V | 12/24V | 12/24/48V | 12/24/48V |
| Rated charge current | 10A | 15A | 15A | 20A |
| Max. PV power, 12V 1a,b) | 145W | 220W | 220W | 290W |
| Max. PV power, 24V 1a,b) | 290W | 440W | 440W | 580W |
| Max. PV power, 48V 1a,b) | n.a. | n.a. | n.a. | 1160W |
| Max. PV short circuit current 2) | 13A | 15A | 15A | 20A |
| Automatic load disconnect | Yes | Yes | Yes | Yes |
| Max. PV open circuit voltage | 75V | 75V | 100V | 100V |
| Peak efficiency | 98% | 98% | 98% | 98% |
| Self-consumption | 25/15/10 mA | 25/15/10 mA | 25/15/10 mA | 25/15/10 mA |
| Absorption voltage | 14.4V / 28.8V / 57.6V (adj.) | 14.4V / 28.8V / 57.6V (adj.) | 14.4V / 28.8V / 57.6V (adj.) | 14.4V / 28.8V / 57.6V (adj.) |
| Float voltage | 13.8V / 27.6V (adj.) | 13.8V / 27.6V / 55.2V (adj.) | 13.8V / 27.6V / 55.2V (adj.) | 13.8V / 27.6V / 55.2V (adj.) |
| Charging algorithm | Adaptive multi-stage | Adaptive multi-stage | Adaptive multi-stage | Adaptive multi-stage |
| Temperature compensation | -16 mV/°C, -32 mV/°C resp. | -16 mV/°C, -32 mV/°C resp. | -16 mV/°C, -32 mV/°C resp. | -16 mV/°C, -32 mV/°C resp. |
| Continuous charge current | 15A | 15A | 20A | 20A / 20A / 1A |
| Load disconnect (low voltage) | 11.1V / 22.2V / 44.4V or 11.8V / 23.6V / 47.2V or BatteryLife algorithm | 11.1V / 22.2V / 44.4V or 11.8V / 23.6V / 47.2V or BatteryLife algorithm | 11.1V / 22.2V / 44.4V or 11.8V / 23.6V / 47.2V or BatteryLife algorithm | 11.1V / 22.2V / 44.4V or 11.8V / 23.6V / 47.2V or BatteryLife algorithm |
| Load reconnect (low voltage) | 13.1V / 26.2V / 52.4V or 14V / 28V / 56V or BatteryLife algorithm | 13.1V / 26.2V / 52.4V or 14V / 28V / 56V or BatteryLife algorithm | 13.1V / 26.2V / 52.4V or 14V / 28V / 56V or BatteryLife algorithm | 13.1V / 26.2V / 52.4V or 14V / 28V / 56V or BatteryLife algorithm |
| Protection | Output short circuit / Over-temperature | Output short circuit / Over-temperature | Output short circuit / Over-temperature | Output short circuit / Over-temperature |
| Operating temperature | -30 to +60 °C (full power up to 40°C) | -30 to +60 °C (full power up to 40°C) | -30 to +60 °C (full power up to 40°C) | -30 to +60 °C (full power up to 40°C) |
| Humidity | 95%, non-condensing | 95%, non-condensing | 95%, non-condensing | 95%, non-condensing |
| Data communication port | VE.Direct (consult white paper on data communication on our website) | VE.Direct (consult white paper on data communication on our website) | VE.Direct (consult white paper on data communication on our website) | VE.Direct (consult white paper on data communication on our website) |
| Enclosure | Blue (RAL 5012) | Blue (RAL 5012) | Blue (RAL 5012) | Blue (RAL 5012) |
| Connection terminals | 6 mm² / AWG10 | 6 mm² / AWG10 | 6 mm² / AWG10 | 6 mm² / AWG10 |
| Protection rating | IP43 (electronic components), IP22 (connection area) | IP43 (electronic components), IP22 (connection area) | IP43 (electronic components), IP22 (connection area) | IP43 (electronic components), IP22 (connection area) |
| Weight | 0.5 kg | 0.6 kg | 0.6 kg | 0.65 kg |
| Dimensions (H x W x D) | 100 x 113 x 40 mm | 100 x 113 x 50 mm | 100 x 113 x 50 mm | 100 x 131 x 60 mm |
| Safety | EN/IEC 62109-1, UL 1741, CSA C22.2 | EN/IEC 62109-1, UL 1741, CSA C22.2 | EN/IEC 62109-1, UL 1741, CSA C22.2 | EN/IEC 62109-1, UL 1741, CSA C22.2 |
1a) If more PV power is connected, the controller will limit the input power. 1b) PV voltage must exceed Vbat + 5V for the controller to start. Once started, the minimum PV voltage will be Vbat + 1V. 2) A photovoltaic generator with a higher short-circuit current may damage the controller.
