◼Thank you for choosing our new generation of MPPT controllers. The controllers of this kind are developed building on the latest technology, marking the latest development level of photovoltaic technology, and boast multiple award-winning properties:

◼Premium cooling design and intelligent-control cooling fan;

◼Innovative maximum power point tracking technology adopted, which significantly improves energy utilization of solar systems by lifting the solar tracking efficiency to 97%;

◼Quick scan of the entire I-V curve, enabling the maximum power point to be tracked into just within a few seconds;

◼Optional for charging procedures for sealed, gel and open-type lead-acid batteries and lithium batteries; automatic protection of the controller specific to overcharge, overdischarge, overload and short circuit;

◼RS 485 communication interfaces, enabling communication among multiple computers within up to 1KM, and communication with the host computer which gives easy access to running parameters and status of the controller;

◼Applicable to the solar off-grid system (independent system) thanks to its automatic charging/discharging regulation; advanced tracking algorithm for MPPT control to capture the maximum power of the solar cell modules and recharge the batteries; low-voltage disconnection (LVD) functioning to prevent damage of batteries due to over-discharge; optimized battery charging process relying on MPPT controllers so as to prolong the battery service life and better the system performance; overall self-test and electronic protection functions which prevent damage to controllers resulting from improper installation and system fault;

◼For your better application of controllers in terms of all their functions and improved service of your photovoltaic system, please read the instructions and notes in the Manual carefully.

Features of Maximum Power Point Tracking (MPPT) Technology:

◼The MPPT controller functions to capture the maximum power from the solar array for charging of batteries by use of MPPT technology which, in full automatic mode, keeps free from regulation by users. That is, the controller is able to track the maximum power point in the array automatically when the point varies along with environmental changes in order to obtain the maximum energy from the solar array in a day.

◼The following figure shows I-V curve and output power curve of a representative off-grid solar cell with the nominal rated voltage of 12V:

The batteries of different types have default values of charging parameters. And it is available to reset these values and self-define types of batteries (For details, please refer to the battery parameter setting page).