High Efficiency 20A MPPT Solar Charge Controller With Built In Bluetooth

Description

About MPPT Technology

This solar charge controller uses the most advanced MPPT ( maximum power point tracking ) technology to track the maximum power voltage point of solar panels as it fluctuates depending on sunlight exposure and temperature. Your solar system’s efficiency is guaranteed by this technology and it significantly outperforms standard PWM solar controllers. MPPT technology is advantageous because it has a wide range of solar input voltages, and it can be utilized with both standard off-grid 12/24V solar panels. The solar panel voltage is much higher than the battery voltage (e.g. charging a 12V battery with a 36V solar panel). To ensure the highest efficiency of your solar system, this charge controller has a comprehensive set of electronic protection functions.The measures are designed to prevent reverse current at night (from the battery back to the solar panel) and prevent over-charging by automatically cutting off. Deep discharge, overvoltage, overload, short circuit, and reverse polarity protection are all features of solar panel protection. This controller has the technology to  self-diagnose and as a result  highlights any system errors using advanced fault-targeting technology. 

Advanced system monitoring:

• The built in bluetooth element  allows for parameters to be observed and altered via the mobile app, avaible on all Apple ios and Android
• The controller automatically recognises 12/24V battery systems (note a battery should always be connected to the controller first before connecting a solar panel).
• Built-in LCD screen shows real-time charging parameters such as voltage, current (separately for solar panel / load), battery state of charge, and historical data for accumulated charge and discharge energy.
• effective simple control buttons
• Easy to use buttons enable the user to manually choose the battery type (sealed, flooded, gel, or LiFePO4) and configure load settings, such as programming timers for lighting, fans, pumps, and other devices.

Various connection options:

• remote metre MT52 with an LCD screen –

  The interface presents system performance data and enables the user to manually modify parameters and configure load settings.

• WI-FI module –  this element ensures a mobile or tablet connection to allow monitoring provided for parameter changes and for settings controls
• An RJ45 to USB  cable providing connection straight to your laptop and PC where again settings can be adjucted accordingly.

Using one of these communication methods, the user will gain access not only to the standard charging parameters already shown via the built-in LCD screen, but also additional information such as min/max voltages, temperature, protection cut off voltages, diagnostics and other information. If required the user will also be able to amend the battery capacity, set charging volts for different charging stages, specify the duration of each charging stage, create a user-defined battery type with charging parameters specific to their battery (if the pre-existing options are unsuitable), and more.

In addition to the built-in temperature sensor and intelligent heat-dissipating design of this controller, there is also a socket for connecting a  a remote temperature sensor, which can be attached directly to the battery to measure the battery temperature more precisely and optimise the charging process. (Inbuilt temperature sensor is not enabled for lithium batteries).

Controller specifications:

• The most advanced MPPT technology to ensure high efficiency (>95%) of your solar system
• Fully automated operation and auto 12/24V selection
• Rated charge and discharge current: 20A
• 3 pairs of terminals (solar panel, battery, load) for wires up to 16mm²
• Maximum solar panel voltage 100V
• Maximum solar panel power 260W (12V) / 520W (24V)
• Temperature sensor for automatic compensation (-3mV/°C/2V)
• Comprehensive electronic protection features
• Communication port: RS485/RJ45 interface
• Self-consumption (COM port enabled): <15mA (12V), <9mA (24V)
• Self-consumption (COM port disabled): <8mA (12V), <6mA (24V)
• Grounding: negative common ground
• Working temperature: -25°C to +50°C
• Size: 217 x 158 x 56.5 mm
• Mounting size: 160 x 149 mm
• Weight: 0.97 kg
• Multiple mounting holes (5mm diameter) for ease of installation

The product comes with a detailed user manual which explains wiring and operations (see Documents tab). Advanced users will benefit from a section in the manual explaining MPPT technology.