Victron SmartSolar MPPT 75/15 15A solar charge controller for solar panels up to 220W (12V) / 440W (24V) up to 75V (Bluetooth inbuilt)
Victron SmartSolar MPPT 75/15 15A solar charge controller for solar panels up to 220W (12V) / 440W (24V) up to 75V (Bluetooth inbuilt)
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Victron SmartSolar MPPT 75/15 Solar Charge Controller
15A Output | 75V PV Input | 12V/24V Auto-Select | Integrated Bluetooth
The Victron SmartSolar MPPT 75/15 is an advanced 15A solar charge controller designed to optimise energy harvest from your solar panels and maintain battery health. Utilising ultrafast Maximum Power Point Tracking (MPPT) technology, this controller efficiently converts solar power for 12V or 24V battery systems, supporting up to 220W (12V) or 440W (24V) of solar PV input with a maximum open circuit voltage of 75V.
Ideal for a wide range of applications from off-grid cabins and recreational vehicles to marine systems, the SmartSolar MPPT 75/15 features built-in Bluetooth for seamless monitoring and configuration via the VictronConnect App. Its intelligent 'BatteryLife' algorithm further extends battery lifespan by preventing excessive discharge.
KEY ADVANTAGE: Ultrafast MPPT technology maximises energy yield, even in partially shaded or cloudy conditions, outperforming slower MPPT and PWM controllers.
Key Features
| ▶ Ultrafast MPPT Tracking — Maximises energy harvest from solar panels in all conditions. |
| ▶ Integrated Bluetooth — Enables wireless monitoring and configuration via the VictronConnect App. |
| ▶ BatteryLife Algorithm — Intelligently manages load disconnect to extend battery lifespan. |
| ▶ Automatic Voltage Selection — Automatically detects 12V or 24V battery systems. |
| ▶ Extensive Protection — Built-in safeguards against common electrical faults. |
| ▶ Wide Battery Compatibility — Supports AGM, Gel, Tubular plate, and Lithium battery types. |
| ▶ Robust Design — IP43 rated for electronic components, suitable for challenging environments. |
Technical Specifications
| Parameter | Value |
|---|---|
| Battery Voltage | 12V / 24V Auto-Select |
| Max. PV Open Circuit Voltage | 75V |
| Max. Battery Charge Current | 15A |
| Nominal PV Power (12V) | 220W |
| Nominal PV Power (24V) | 440W |
| Peak Efficiency | 98% |
| Self-Consumption (12V / 24V) | 25mA / 15mA |
| Communication Port | VE.Direct (RS232 / TTL) |
| Operating Temperature | -30°C to +60°C |
| Enclosure Protection | IP43 (electronics) / IP22 (connections) |
| Pollution Degree | PD3 |
| Dimensions (H x W x D) | 100 x 113 x 40 mm |
| Weight | 0.5 kg |
Charging & Battery Modes
| Feature | Description |
|---|---|
| Adaptive 3-Stage Charging | Ensures optimal charging for various battery types, including bulk, absorption, and float stages, adapting to battery condition. |
| BatteryLife Algorithm | Intelligently adjusts load disconnect thresholds to ensure a full recharge weekly, preventing long-term battery damage. |
| Programmable Load Output | Allows configuration of load disconnect voltage to protect batteries from excessive discharge. |
| Temperature Compensation | Internal temperature sensor adjusts charging parameters for optimal performance and battery longevity across varying temperatures. |
Typical Applications
| Application | Description |
|---|---|
| Recreational Vehicles (RVs) | Efficiently charges leisure batteries in caravans, motorhomes, and campervans, even with changing light conditions. |
| Marine Systems | Provides reliable solar charging for boats and yachts, handling partial shading from sails and masts. |
| Small Off-Grid Systems | Powers remote cabins, sheds, and small backup power setups where grid connection is unavailable. |
| Portable Solar Setups | Suitable for portable solar kits and temporary installations requiring efficient battery charging. |
Built-In Protection Functions
The Victron SmartSolar MPPT 75/15 incorporates comprehensive electronic protection features to ensure safe and reliable operation. These include safeguards against battery reverse polarity, PV reverse polarity, PV short circuit, output short circuit, and battery over-temperature. The controller also features self-diagnostic capabilities with LED indicators for system errors.
Common Questions
What is MPPT technology?
MPPT (Maximum Power Point Tracking) is an advanced algorithm that continuously tracks the optimal voltage and current point of your solar panels to extract the maximum available power, especially beneficial in changing weather conditions.
How do I monitor the SmartSolar MPPT 75/15?
The controller has built-in Bluetooth, allowing you to connect wirelessly to the VictronConnect App on your smartphone, tablet, or computer for real-time data, historical logs, and configuration.
Can this controller charge different battery types?
Yes, the SmartSolar MPPT 75/15 is compatible with a wide range of battery types, including AGM, Gel, Tubular plate, and Lithium, offering flexible charging profiles.
What is the 'BatteryLife' feature?
BatteryLife is an intelligent algorithm that monitors the battery's state of charge and dynamically adjusts the load disconnect voltage to ensure the battery achieves a 100% recharge regularly, thereby prolonging its lifespan.
Installation Notes
- Mount the controller vertically in a dry, well-ventilated area, close to the batteries.
- Always connect the battery first, ensuring correct polarity, before connecting the solar panels.
- Ensure solar panel voltage (Voc) does not exceed 75V and short-circuit current (Isc) does not exceed 15A.
- Use appropriate cable gauges (up to 6mm² / AWG10) for all connections to minimise voltage drop.
- Refer to the detailed user manual for comprehensive wiring diagrams and operational instructions.
Before You Buy
- Verify your solar panel array's total power and voltage are within the controller's limits (Max 75V PV, Max 220W/12V, 440W/24V).
- Confirm your battery bank voltage (12V or 24V) matches the controller's auto-detection capability.
- Consider if you require additional Victron accessories, such as a VE.Direct USB cable for PC connection without Bluetooth, or an optional MPPT Control display.
- Ensure you have adequate space for mounting and proper ventilation around the unit.
- For complex systems, consult with a qualified solar installer to ensure compatibility and optimal system design.
Always verify product specifications and compatibility with your existing solar system components before purchase. This product is covered by a manufacturer's 5-year warranty.
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