Victron Energy ▶ BlueSolar Series Victron BlueSolar MPPT 100/20 Solar Charge Controller 20A Charge Current | Up to 100V PV | 12V, 24V, 36V, 48V Systems The Victron BlueSolar MPPT 100/20 Solar Charge Controller (SKU: VBSM100-20) is an advanced Maximum Power Point Tracking (MPPT) device designed to optimise energy harvest from your solar panels and ensure efficient, long-lasting battery charging. This 20A charge controller is suitable for solar panel arrays up to 100V and automatically adapts to 12V, 24V, or 48V battery systems, with manual configuration available for 36V systems. Engineered by Victron Energy, a leader in renewable energy solutions, the BlueSolar MPPT 100/20 maximises power delivery even in challenging weather conditions, making it an ideal choice for various off-grid and grid-tied solar applications in the UK. IMPORTANT NOTE: This BlueSolar model requires an optional VE.Direct Bluetooth Dongle or VE.Direct USB cable for full monitoring and configuration via the VictronConnect app. Key Features ▶ Ultra-Fast MPPT Tracking — Maximises energy harvest, especially in variable light conditions. ▶ BatteryLife Algorithm — Intelligently extends battery lifespan by preventing deep discharge. ▶ Flexible Battery Voltage — Automatically detects 12V, 24V, 48V systems; 36V configurable. ▶ Programmable Charge Algorithm — Customise charging parameters for various battery types. ▶ Intelligent Load Output — Protects batteries from over-discharge by disconnecting loads. ▶ Extensive Electronic Protection — Safeguards against common system faults. ▶ High Efficiency — Achieves up to 98% conversion efficiency. Technical Specifications Parameter Value Battery Voltage (Auto Select) 12V / 24V / 48V (36V manual) Max. Battery Charge Current 20A Max. PV Open Circuit Voltage 100V Nominal PV Power (12V) 290W Nominal PV Power (24V) 580W Nominal PV Power (36V) 870W Nominal PV Power (48V) 1160W Peak Efficiency 98% Self-Consumption (12V / 24V-48V) 25mA / 15mA Operating Temperature -30°C to +60°C (full output up to 40°C) Protection Category IP43 (electronics), IP22 (connections) Power Terminals 6mm² / AWG10 Dimensions (H x W x D) 100 x 113 x 60 mm Weight 0.65 kg Charging & Battery Modes Feature Description Adaptive 3-Stage Charging Ensures optimal charging for various battery types (Bulk, Absorption, Float). BatteryLife Algorithm Monitors battery state of charge and dynamically adjusts load disconnect levels to ensure regular 100% recharges, extending battery life. Programmable Charge Algorithm Allows customisation of absorption voltage/time, float voltage, and equalisation settings via VictronConnect. Load Output Management Prevents battery over-discharge by automatically disconnecting DC loads at a pre-set voltage. Short-circuit proof. Temperature Compensation Internal temperature sensor automatically adjusts charge voltages for optimal battery health. Typical Applications Application Description Off-Grid Systems Ideal for cabins, sheds, and remote properties requiring reliable solar power. Caravans & Motorhomes Efficiently charges leisure batteries from solar panels for mobile power. Marine Vessels Suitable for boats and yachts to maintain battery banks from solar input. Small Commercial Installations Powers lighting, security, or monitoring systems in smaller commercial setups. Built-In Protection Functions The Victron BlueSolar MPPT 100/20 incorporates comprehensive electronic protection features to ensure system safety and reliability. These include safeguards against battery reverse polarity, load short circuits, and battery overheating, monitored by an internal temperature sensor. The unit also features self-diagnostic capabilities, indicating system errors via high-intensity LED indicators. Common Questions What is MPPT technology? MPPT (Maximum Power Point Tracking) is an electronic tracking system that finds the optimal voltage and current at which solar panels can produce maximum power. This results in up to 30% more energy harvest compared to older PWM controllers, especially in varying light conditions. Can I monitor this controller remotely? Yes, by connecting an optional VE.Direct Bluetooth Dongle or VE.Direct USB cable (sold separately), you can use the free VictronConnect app on your smartphone, tablet, or computer for real-time monitoring, historical data, and advanced configuration. Is it compatible with Lithium batteries? Yes, the Victron BlueSolar MPPT 100/20 is compatible with Lithium batteries. However, specific charging parameters for Lithium batteries will need to be configured using the VictronConnect app. What is the 'BatteryLife' feature? BatteryLife is an intelligent algorithm that monitors the battery's state of charge. If the battery isn't fully recharged daily, it gradually raises the load disconnect voltage until a full 100% charge is achieved regularly, preventing chronic undercharging and extending battery lifespan. Installation Notes Ensure correct polarity for battery and solar panel connections. Use appropriate cable gauges (up to 6mm² / AWG10) for all connections to prevent voltage drop and overheating. Mount the controller in a well-ventilated area, away from direct sunlight and heat sources, to maintain optimal operating temperature. The PV voltage must exceed the battery voltage by at least 5V for the controller to start charging. For 36V battery systems, the voltage must be set manually via the VictronConnect app or optional MPPT Control display. Before You Buy Verify your total solar panel array voltage (Voc) does not exceed 100V. Confirm your battery system voltage (12V, 24V, 36V, or 48V) matches the controller's capabilities. Consider if you require remote monitoring and control; an optional VE.Direct Bluetooth Dongle or USB cable is needed for this BlueSolar model. Ensure the maximum PV power for your system voltage (e.g., 290W for 12V, 580W for 24V) is within the controller's limits. For Lithium batteries, plan to configure specific charging parameters using the VictronConnect app. Always consult the manufacturer's latest datasheet and manual for detailed specifications, installation guidelines, and compatibility information before purchase and installation.
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