FOR SOLAR PANELS UP TO 290W (12V) / 580W (24V) / 870W (36V) / 1160W (48V) UP TO 100V
 
This Victron 100V 20A MPPT controller comes from the intelligent BlueSolar range, which uses the latest ultrafast MPPT technology to maximise energy harvest whilst maintaining optimal battery health. BlueSolar MPPT controllers uniquely boast an intelligent battery life function, along with advanced communication options for remote system monitoring.
Ultrafast MPPT Technology:
This 20A MPPT solar charge controller is designed to deliver the highest possible energy yield in the shortest amount of time. This is achieved through the use of high speed Maximum Power Point Tracking technology, which tracks the maximum power voltage point of the solar panels as it varies depending on sunlight exposure and temperature. 
This technology enables the controller to produce up to 30% greater energy yield than PWM controllers and as much as 10% more power than slower MPPT controllers. This advanced technology allows the controller to perform extremely well in low-light or cloudy conditions, as the controller consistently strives to extract the maximum available power from the solar array.
Inbuilt safety protection:
Fully equipped with an extensive range of safety features, this controller offers complete protection against potential hazards such as battery reverse polarity, load short circuit, and battery overheating - monitored via the internal temperature sensor. The controller also has self-diagnostic capability and highlights any system errors using sophisticated fault-targeting technology. These are signalled via the high intensity LED indicators.  
Intelligent 'BatteryLife' function:
To prevent complete discharge of the battery and avoid potentially permanent damage, this controller is equipped with the Victron BatteryLife function; a state-of-the-art feature designed to extend the lifetime of the battery by monitoring and controlling the output of excessive loads. Using an intelligent algorithm, the controller will continuously monitor the battery state of charge, and if required (e.g. during periods of poor weather), will gradually adjust the load disconnect threshold until a full 100% recharge is consistently achieved on a weekly basis. Alternatively, the load voltage disconnect point can be manually configured to your preferred level, using the VictronConnect software (see below).
Advanced programming and monitoring:
The user can connect an optional MPPT Control panel (sold separately) to the controller to access a range of monitoring and programming functions. The display shows charging parameters (voltage, current, power) for the solar panel, battery and load, as well as 30 day performance data. The user can also adjust the load settings and specifically set the duration and voltage of each charging stage.  
Alternatively, by connecting the controller to a Victron VE Direct Bluetooth Dongle, or the VE Direct USB cable (both sold separately), the user can gain access to the VictronConnect App, which unlocks numerous possibilities for advanced programming and remote monitoring of your BlueSolar system. Once the controller is paired with the app, a wide range of additional features are made available, including:
Live data transmission: Real-time information is displayed including solar panel output, battery voltage and current (flowing into and out of the battery), battery state of charge, load status and consumption.
Detailed data logs: System activity for the past 30 days is available to view; either as in-depth daily logs or as a monthly summary. These easy-view graphics display daily energy yield, maximum recorded power and voltage, time spent in each charging stage, minimum and maximum recorded battery voltages, error records and total energy counters.
User-defined battery charging algorithm: Option to disable preset values in favour of personalised charging parameters, including user-defined absorption voltage, absorption time, float voltage, equalisation voltage and temperature compensation settings.
Load configuration: Option to choose from one of the pre-set load management programs or create a user-defined program. Includes a streetlight function to control the duration and brightness of nighttime lighting.
The VictronConnect app is compatible with most mobile devices and computers, including Android and iOS smartphones, tablets, iPads, MacBooks, Windows PCs/laptops.
Other features:
The Victron BlueSolar MPPT 100-20 model is ideal for a wide range of applications as it is resistant to extreme temperatures, high altitudes and marine environments. The unit enclosure is IP43 water resistant with resin encapsulation of the internal electrical components.
This solar charge controller is also compatible with a wide range of battery types, including AGM, Gel, Tubular plate and Lithium batteries (requires Bluetooth dongle or USB interface cable to adjust battery type).