Solar Power Supply Equipment

100A MPPT Solar Charge Controller 48V for 5KW Off Grid Solar System

Name: 100A MPPT Solar Charge Controller 48V for 5KW Off Grid Solar System
Brand: WeBright Solar

12V/24V/48V DC Volt Auto Work Solar Panel Capacity: Up to 5kWp Off Grid Type Solar System To Charge Lithium/Gel/Lead Acid Battery Support PC and APP (Android & iOS) monitoring Warranty: 2 years

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Diagram of a solar power system showing connections between solar panels, battery, inverter, and loads.

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Product Overview

What This Product Is

A 100A MPPT solar charge controller designed for 48V off-grid systems up to 5KWp. It auto-detects battery voltage across 12V, 24V, and 48V systems and supports sealed, GEL, flooded, and lithium-ion batteries. The controller uses a high-efficiency MPPT algorithm with a conversion rate of at least 99.5%, ensuring maximum energy harvest from the solar array. It includes dual RS485 ports for parallel communication, touch switch operation, and an HD LCD display for real-time monitoring. PC and mobile app (Android & iOS) monitoring is supported, and lithium-ion battery self-activation is optional.

Key Benefits

What You Get

Auto-detects battery voltage across 12V 24V and 48V systems without manual setting
High-efficiency MPPT algorithm with conversion rate ≥99.5% for maximum solar harvest
Supports multiple battery types: sealed GEL flooded and lithium-ion

Dual RS485 ports enable parallel communication for system expansion
Touch switch and HD LCD display allow clear on-site monitoring and control
PC and app (Android iOS) remote monitoring available for system oversight

Who It Is For

Buyers and Sites

Solar installers integrating a 5KW off-grid system with a 48V battery bank
EPC contractors managing multiple controller units in a single system
Importers supplying complete off-grid kits to markets with unstable or no grid
End users who need remote monitoring for a solar-powered home or small business

Application Scenarios

Where It Is Installed

Off-grid homes with a 5KW solar array and 48V battery bank requiring precise charge control
Remote installations where remote monitoring via PC or mobile app is essential
Systems using lithium-ion batteries that need self-activation and stage-specific charging
Installations with multiple controllers that must communicate in parallel
Projects where automatic voltage detection prevents incorrect configuration

Problems It Solves

What This Removes From the Job

Incorrect battery voltage setting leading to overcharging or undercharging
Lack of remote monitoring for off-grid systems in remote locations
Incompatibility with lithium-ion batteries due to missing self-activation
No parallel communication between multiple controllers in a single system
Manual configuration of MPPT settings causing commissioning delays

Technical Features

How It Is Built

MPPT algorithm with conversion rate ≥99.5% for high efficiency
Auto-detects battery system voltage: 12V 24V or 48V
Supports sealed GEL flooded and lithium-ion battery types
Three-stage charging mode: CC CV CF for optimal battery health

Current-limited charging function to protect the battery and system
Dual RS485 ports for parallel communication between controllers
Touch switch and HD LCD display for real-time system status

Specifications

Technical Data

Values below are taken from the product documentation. Anything not listed is confirmed against your order.

Controller Type	MPPT
Maximum Current	100A
Input Voltage Range	12Vdc to 384Vdc
Output Voltage	48Vdc
Battery Voltage Auto-Detect	12V 24V 48V
Battery Types Supported	Sealed GEL Flooded Lithium-ion
Charging Stages	CC CV CF
Conversion Efficiency	≥99.5%
Monitoring	PC and Android iOS app via Wi-Fi Bluetooth
Communication Ports	Dual RS485
Display	HD LCD with touch switch
Lithium Self-Activation	Optional
Input Protection	SPD surge protection
Environmental Protection	Double in and out ventilation

Materials

What It Is Made Of

High-efficiency MPPT control circuit board with heat-dissipating design
Anodised aluminium housing with double ventilation for thermal management
Heavy-duty terminals rated for 100A continuous current
Internal components designed for 12V 24V and 48V system compatibility
Wiring and connectors rated for 1000VDC and 70A current

Manufacturing and Preparation

Before It Ships

Verify the system voltage (12V 24V or 48V) before installation
Connect the solar array to the MPPT input with correct polarity
Link the battery bank to the output terminals after confirming voltage match
Enable lithium self-activation if using lithium-ion batteries
Configure remote monitoring via Wi-Fi or Bluetooth on the app
Test the controller with a load and verify charging stages on the LCD

Quality Control

Checked Before Packing

Controller powered up and tested for MPPT efficiency before packing
Voltage auto-detection verified across 12V 24V and 48V settings
RS485 communication tested for dual port functionality
LCD display and touch switch checked for responsiveness
Battery type compatibility confirmed during function test

Customisation

What Can Be Changed at Order Stage

Battery type selected at order stage: GEL flooded or lithium-ion
Lithium self-activation function added on request
Remote monitoring setup configured for Wi-Fi or Bluetooth

Mounting bracket designed with CAD drawings for site-specific fit
Controller output set for 48Vdc system integration

Comparison

How It Compares With the Alternatives

PWM charge controller	Higher efficiency with MPPT algorithm, better performance under partial shading
Manual voltage setting controller	Auto-detects system voltage, reduces setup errors and commissioning time
Basic MPPT controller without app monitoring	Supports remote PC and mobile app monitoring for off-grid sites
Single RS485 port controller	Dual RS485 ports allow parallel communication in multi-controller systems

Use Guide