Victron SmartSolar MPPT 250/70 70A solar charge controller
Victron SmartSolar MPPT 250/70 70A solar charge controller
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Victron SmartSolar MPPT 250/70 Solar Charge Controller
70A Charge Current | 250V PV Input | Integrated Bluetooth
The Victron SmartSolar MPPT 250/70 70A Solar Charge Controller (SKU: VSSM250-70) is an advanced solution for optimising energy harvest from your solar panels. Designed for a wide range of off-grid and grid-connected systems, this intelligent MPPT controller efficiently converts solar energy to charge 12V, 24V, 36V, or 48V battery banks.
Featuring Victron's ultrafast Maximum Power Point Tracking (MPPT) technology, it ensures maximum power extraction even in challenging conditions like partial shading or rapidly changing light intensity. Built-in Bluetooth allows for convenient monitoring and configuration via the VictronConnect App on your smartphone or tablet.
SYSTEM FLEXIBILITY: Automatically detects 12V, 24V, or 48V battery systems; 36V operation configurable via VictronConnect App or optional display.
Key Features
| ▶ Ultrafast MPPT Technology — Maximises energy harvest by up to 30% compared to PWM controllers. |
| ▶ Integrated Bluetooth Smart — Wireless setup, monitoring, and updates via the VictronConnect App. |
| ▶ Flexible Charge Algorithm — Fully programmable for various battery chemistries, including Lithium, AGM, Gel, and Flooded. |
| ▶ High PV Input Voltage — Supports solar arrays up to 250V open circuit voltage. |
| ▶ Programmable Relay — Allows for external control, such as generator start or alarm signalling. |
| ▶ VE.Direct & VE.Can Ports — For wired communication with GX devices and synchronised parallel charging. |
| ▶ Robust & Durable Design — IP43 rated enclosure for electronic components, suitable for various environments. |
Technical Specifications
| Parameter | Value |
|---|---|
| Battery Voltage | 12 / 24 / 36* / 48V Auto Select |
| Max. Battery Charge Current | 70A |
| Max. PV Open Circuit Voltage | 250V |
| Max. PV Power (12V) | 1000W |
| Max. PV Power (24V) | 2000W |
| Max. PV Power (36V) | 3000W |
| Max. PV Power (48V) | 4000W |
| Max. Efficiency | >98% |
| Self-Consumption | <35mA (12V) / <20mA (48V) |
| Operating Temperature | -30°C to +60°C |
| Enclosure Protection | IP43 (electronics) / IP22 (connections) |
| Dimensions (H x W x D) | 250 x 185 x 95 mm |
| Weight | 3 kg |
| Certifications | IEC/EN 62109-1, CE, TÜV |
*36V selection available when using the Plug-in LCD display or VictronConnect App.
Charging & Battery Modes
| Feature | Description |
|---|---|
| Adaptive Charging | Intelligent charge algorithm automatically switches between bulk, absorption, and float stages to prolong battery life. |
| Battery Compatibility | Compatible with a wide range of battery types including AGM, Gel, Flooded, Tubular plate, and Lithium. |
| Discharged Battery Recovery | Can initiate charging even if a battery has been discharged to zero volts, and reconnects to Li-ion batteries with integrated disconnect. |
| Synchronised Charging | Multiple SmartSolar MPPTs can synchronise their charge stages via Bluetooth or VE.Can for optimal battery health and system efficiency. |
Typical Applications
| Application | Description |
|---|---|
| Off-Grid Systems | Ideal for standalone solar power systems, ensuring reliable battery charging for remote homes, cabins, or workshops. |
| Recreational Vehicles (RVs) | Maintains optimal battery charge for caravans, motorhomes, and campervans, adapting to changing light conditions on the move. |
| Marine Applications | Provides high solar yield on boats and yachts, handling partial shading from sails or structures. |
| Hybrid Generator Systems | Integrates with generator systems to maximise solar energy conversion, reducing fuel consumption. |
Built-In Protection Functions
The Victron SmartSolar MPPT 250/70 is equipped with comprehensive electronic protection features to ensure system safety and longevity. These include: PV short circuit protection • PV reverse polarity protection • PV reverse current protection • Battery overvoltage protection • Battery reverse polarity protection • Over-temperature protection and power derating when temperature is high.
Common Questions
What is the benefit of an MPPT controller over a PWM controller?
MPPT (Maximum Power Point Tracking) controllers, like the SmartSolar 250/70, dynamically track the optimal voltage and current point of your solar panels. This can result in up to 30% more energy harvest compared to simpler PWM (Pulse Width Modulation) controllers, especially in variable weather conditions.
How do I monitor and configure the SmartSolar MPPT 250/70?
The controller features built-in Bluetooth, allowing you to connect wirelessly via the free VictronConnect App on your smartphone, tablet, or PC. This app provides real-time data, historical logs, and full customisation of charging parameters.
Can this controller be used with different battery types?
Yes, the SmartSolar MPPT 250/70 is compatible with a wide range of battery chemistries, including lead-acid (AGM, Gel, Flooded, Tubular plate) and Lithium batteries. The charging algorithm is flexible and can be programmed to match your specific battery requirements.
What accessories are compatible with this charge controller?
Optional accessories include the SmartSolar Pluggable LCD display for direct monitoring, the MPPT Control panel, and VE.Direct cables for connection to a PC or Victron GX devices for advanced system integration and remote management via the VRM portal.
Installation Notes
- Ensure correct polarity when connecting solar panels and batteries to prevent damage.
- Mount the controller in a well-ventilated area, away from direct sunlight and heat sources, to ensure optimal performance and cooling.
- Use appropriate cable gauges for PV and battery connections to minimise voltage drop and ensure safety.
- For 36V battery systems, configuration is required via the VictronConnect App or an optional display.
- Refer to the detailed user manual for comprehensive wiring diagrams and installation instructions.
Before You Buy
- Verify your solar panel array's open circuit voltage (Voc) does not exceed 250V under all conditions.
- Confirm your battery bank's nominal voltage (12V, 24V, 36V, or 48V) matches the controller's capabilities.
- Consider your total PV power output to ensure it falls within the controller's maximum limits for your chosen battery voltage.
- Assess your monitoring needs; the built-in Bluetooth is excellent, but optional displays or GX devices offer further integration.
- For optimal performance and safety, professional installation is recommended for complex solar systems.
Always verify product specifications and compatibility with your existing solar system components before purchase. This Victron SmartSolar MPPT 250/70 controller is covered by a 5-year manufacturer's warranty.
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