Victron SmartSolar MPPT 75/15
Victron SmartSolar MPPT 75/15
SKU:792-SCC075015060R
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Victron SmartSolar MPPT 75/15 Solar Charge Controller
Efficient MPPT Technology & Bluetooth Connectivity | For 12V/24V Battery Systems
The Victron SmartSolar MPPT 75/15 Solar Charge Controller is an advanced solution for optimising energy harvest from your solar panels and efficiently charging your batteries. Utilising ultra-fast Maximum Power Point Tracking (MPPT) technology, this controller intelligently maximises power output, especially during fluctuating light conditions, ensuring your batteries reach full charge in the shortest possible time.
Designed for 12V and 24V battery systems, the SmartSolar MPPT 75/15 automatically detects your system voltage and provides adaptive three-stage charging to maintain battery health and extend its lifespan. Its integrated Bluetooth functionality allows for convenient monitoring and configuration via the VictronConnect app on your smartphone or tablet.
KEY BENEFIT: Maximises solar energy harvest for faster, healthier battery charging, even in challenging conditions.
Key Features
| ▶ Ultra-Fast MPPT Technology — Optimises energy harvest by up to 30% compared to PWM controllers, especially in cloudy conditions. |
| ▶ Built-in Bluetooth Smart — Wirelessly monitor and configure your controller via the VictronConnect app on your smartphone or tablet. |
| ▶ Automatic 12V/24V System Detection — Automatically adapts to your battery bank voltage for seamless integration. |
| ▶ Intelligent Load Output with BatteryLife — Prevents excessive battery discharge by disconnecting loads, extending battery lifespan. |
| ▶ Adaptive 3-Stage Charging — Ensures optimal charging for various battery types, including lead-acid (Flooded, AGM, Gel) and Lithium (LiFePO4). |
| ▶ Can Recover Deeply Discharged Batteries — Capable of recharging batteries with a voltage as low as 0V, provided cells are not permanently damaged. |
Technical Specifications
| Parameter | Value |
|---|---|
| Battery Voltage (Auto Select) | 12V / 24V |
| Max. PV Open Circuit Voltage (Voc) | 75V |
| Max. Battery Charge Current | 15A |
| Nominal PV Power (12V System) | 220W |
| Nominal PV Power (24V System) | 440W |
| Max. PV Short Circuit Current | 15A |
| Peak Efficiency | Up to 98% |
| Self-Consumption (Load Off) | 10 mA (12V), 8 mA (24V) |
| Operating Temperature Range | -30 to +60°C (full output up to 40°C) |
| Protection Category | IP43 (electronic), IP22 (connection area) |
| Dimensions (H x W x D) | 100 x 113 x 40 mm |
| Weight | 0.5 kg |
Charging & Battery Modes
The SmartSolar MPPT 75/15 employs an adaptive multi-stage charging algorithm to ensure optimal battery health and longevity. This includes:
- Bulk Charge: Rapidly charges the battery to its absorption voltage.
- Absorption Charge: Maintains a constant voltage to ensure full charge, with duration determined by battery voltage at startup.
- Float Charge: Reduces voltage to a lower level to maintain a fully charged battery without overcharging.
- Storage Mode: Further reduces voltage to minimise gassing and corrosion when the battery is not in use.
It is compatible with a wide range of battery types, including Flooded, AGM, Gel, and Lithium (LiFePO4). Settings can be easily configured and customised via the VictronConnect app to match your specific battery requirements.
Typical Applications
| Application | Description |
|---|---|
| Off-Grid Systems | Ideal for small to medium off-grid setups, providing reliable power for remote cabins, sheds, and workshops. |
| RVs, Caravans & Vans | Ensures efficient battery charging for mobile applications, supporting lights, fridges, and other onboard electronics. |
| Marine Systems | Robust design and efficient tracking make it suitable for boats and marine environments, handling partial shading effectively. |
| Small Backup Power | Can be integrated into small backup power solutions to keep essential devices running during outages. |
Built-In Protection Functions
The Victron SmartSolar MPPT 75/15 includes comprehensive electronic protection features for safe and reliable operation. These include: PV reverse polarity protection • PV short circuit protection • Battery reverse polarity protection • Output short circuit protection • Over-temperature protection • Automatic load disconnect to prevent battery over-discharge.
Common Questions
What does MPPT mean?
MPPT stands for Maximum Power Point Tracking. It's an advanced technology that continuously monitors the voltage and current output of your solar panels to find the optimal power point, ensuring maximum energy is harvested and stored in your batteries, even in varying light conditions.
What battery types are compatible with this controller?
The Victron SmartSolar MPPT 75/15 is compatible with various battery chemistries, including Flooded, AGM, Gel, and Lithium Iron Phosphate (LiFePO4). The charging parameters can be easily adjusted via the VictronConnect app to suit your specific battery type.
How do I monitor and configure the SmartSolar MPPT 75/15?
This controller features built-in Bluetooth Smart, allowing you to connect wirelessly to the VictronConnect app on your smartphone or tablet. The app provides real-time data, historical performance, and full control over settings and charging algorithms.
Can this controller be used with a 48V battery system?
No, the Victron SmartSolar MPPT 75/15 is designed for automatic detection and operation with 12V or 24V battery systems only. For 48V systems, a different Victron SmartSolar model would be required.
Installation Notes
- Mount the controller vertically in a dry, well-ventilated location, as close to the batteries as possible.
- Always connect the battery wires first (positive and negative) before connecting the solar panel wires.
- Ensure all wiring is correctly sized for the current and protected with appropriate fuses or circuit breakers.
- The PV voltage must be at least 5V higher than the battery voltage for the controller to start charging.
- For optimal performance and safety, installation should be carried out by a qualified professional.
Before You Buy
- Verify your battery system voltage (12V or 24V) to ensure compatibility.
- Confirm your total solar panel array power (Watts) and open-circuit voltage (Voc) do not exceed the controller's maximum ratings (75V Voc, 220W for 12V, 440W for 24V).
- Consider your battery type and ensure the VictronConnect app settings can be configured to match its specific charging requirements.
- Ensure adequate space for mounting and ventilation to prevent overheating.
Always refer to the manufacturer's official documentation for detailed specifications, installation guidelines, and safety information before purchase and installation. Product specifications are subject to change without notice.
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