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Off‑Grid Solar Power Kit | MPPT Controller + LFP Battery + Off‑Grid Inverter

Off‑Grid Solar Power Kit | MPPT Controller + LFP Battery + Off‑Grid Inverter

The Off‑Grid PV Energy Storage System is a fully integrated renewable power solution that combines digital control, stable power supply, and flexible energy storage into a compact all‑in‑one design. Built with fully digital dual closed‑loop control and SPWM technology, the system delivers pure sine wave output for reliable operation of residential, commercial, and mission‑critical loads.

This system integrates lithium iron phosphate batteries and features automatic lithium battery activation, enabling deployment in various off-grid environments. It offers AC/PV priority charging, hybrid charging modes, and an integrated controller, inverter, battery, and battery management system (BMS). This simplifies installation while maximizing energy efficiency.

This system can be used as a UPS, and through multiple protection mechanisms, it can maintain stable operation even in harsh environments. It is a reliable and continuous energy supply solution for high-end villas, remote areas, and other similar locations.

  • Item No :

    GM-LE5K

  • Payment :

    TT/LC

  • Product Origin :

    China

  • Custom Made :

    Yes

  • Shipping Port :

    20 days

  • Lead Time :

    Shanghai, Nanjing, Ningbo, Guangzhou, Shenzhen, etc.

  • Warranty :

    3 years
Inquiry now
  • Product Details

Page Overview

This Off‑Grid Solar Storage System integrates solar panels, MPPT controller, lithium battery pack, and off‑grid inverter into a complete energy solution for remote locations without grid access.

Designed for homes, cabins, farms, telecom stations, and backup power, it provides stable AC output, long battery life, and reliable performance in harsh environments.

The system supports 48V battery banks, multiple charging modes, and solar‑first priority, ensuring continuous power even during outages.

Key Features

Off‑Grid PV Energy Storage System

The Off‑Grid PV Energy Storage System is a fully integrated solar‑plus‑storage solution designed exclusively for LiFePO₄ battery systems, delivering high reliability for residential, commercial, and remote‑area power applications. Equipped with fully digital dual closed‑loop control and SPWM technology, it outputs a clean and stable pure sine wave, ensuring safe operation of sensitive appliances and mission‑critical equipment.

This system integrates the MPPT controller, inverter, lithium battery pack, and BMS into a compact, all-in-one architecture, significantly reducing installation time and wiring complexity for EPC contractors and installers. It features AC/PV priority charging, hybrid charging modes, and intelligent lithium battery activation, ensuring continuous and stable power output.

This system features multi-layered protection and broad environmental adaptability. It can be used as a UPS and is suitable for remote areas without mains power or areas with unstable power supply, providing reliable and uninterrupted power output.

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This is a composite product image used to promote a full-featured residential energy storage system. The words
Integrated Design

This home off-grid photovoltaic energy storage system integrates the controller, inverter, battery and BMS into one, simplifying the installation process, reducing the footprint, and reducing system complexity and maintenance costs

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This is a topology diagram illustrating the multi-scenario applications of off-grid solar energy storage systems. In the upper left corner is an image of a circular photovoltaic panel labeled 'Solar panels,' with a downward-pointing arrow pointing to a white rack-mounted off-grid solar inverter. Below the inverter are the words 'LiFePO4 Battery,' along with technical parameters such as Nominal Capacity: 100Ah, Nominal Voltage: 51.2V, and Energy: 5120Wh. In the center of the image, three images representing different application scenarios are arranged vertically: at the top is a circular diagram of a server room (Engine room), in the middle is a 3D floor plan of a family home (Family), and at the bottom is an image of a white outdoor RV (RV). These three scenes are connected by lines on the right, all pointing to the icons of various everyday electrical appliances arranged vertically on the far right. From top to bottom, they include electric drills, smartphones, illuminators, televisions, computers, digital equipment, and outdoor camping equipment, presenting a complete clean energy power ecosystem.
Multi-mode Output

Supports AC bypass and inverter output dual modes, has full-power UPS (uninterruptible power supply) function, and can seamlessly switch to inverter mode when the power grid is interrupted to ensure continuous power supply to critical loads

Read More
A technologically advanced concept image for a battery product. Above a dark, futuristic circuit board background, the words 'Efficient and Safe' are written in white italics. At the center of the image is a lithium-ion battery pack composed of four blue, square cells, with the words 'LiFePO₄ BATTERY' prominently printed in white on the side. The battery pack is surrounded by a bright blue holographic energy halo, highlighting its high efficiency and safety features.
Efficient and Safe

The power saving mode function can reduce no-load loss and improve the overall energy efficiency of the system. It has complete over-voltage, under-voltage, over-current, short-circuit and over-temperature protection functions

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System Components

MPPT Solar Charge Controller

  • High‑efficiency MPPT tracking maximizes PV energy harvest
  • Supports PV priority and hybrid charging logic
  • Built-in overvoltage and overtemperature protection functions

Pure Sine Wave Off‑Grid Inverter

  • Fully digital dual closed‑loop control + SPWM output
  • Pure sine wave AC suitable for sensitive electronics
  • Full‑power UPS mode ensures uninterrupted switching

LiFePO₄ Battery Pack

  • Exclusive lithium‑only architecture with smart activation
  • Long cycle life, high safety, deep‑discharge capability
  • Optimize charging curve

 

Battery Management System (BMS)

  • Real‑time monitoring of voltage, current, SOC, temperature
  • Multi‑layer protection: OVP/OCP/SCP/OTP
  • Seamless communication with inverter for coordinated control

 

AC/DC Distribution Module

  • Integrated circuit breakers, surge protection, etc.
  • Supports AC/PV priority switching and hybrid charging
  • Ensure a stable power supply to the load.

 

Monitoring & Control Interface

  • LCD/APP interface for real‑time system status
  • Configurable charging modes and UPS settings
  • Fault alarms and logs for maintenance and diagnosis

Technical Specifications

Model GM-LE3K GM-LE5K
Mains Input
Rated Input Voltage（VAC） 220 220
Input Voltage Range (VAC) (185-280)±2%
Frequency Range (Hz) 47-55(50)/57-65(60)
Overload Current (A) 40
Maximum AC Charging Current 20
Battery (internal)
Battery Type Lithium battery
Battery Rated Voltage 48
Battery Voltage Range 45-60
No-load Loss（A） ＜1
Rated Energy（KWh） 5.12 10.24
PV Input
Maximum Input Power (W) 2800 4500
Input Voltage Range (VDC) 60-145
Recommended PV String Voltage (V) 105
Charging Method MPPT
MPPT Number 1 1+1
Maximum Photovoltaic Charging Current (A) 50 40+40
AC Output
Rated Output Power (W) 3000 5000
Maximum Output Power (VA) 5000 8000
Rated Output Voltage (VAC) 220±5%
Output Frequency Range (Hz) 50/60±1%
Output Waveform Pure sine wave
No-load Loss ＜3%（rated power）
AC voltage Distortion Rate ＜3%（Linear load）
Peak Efficiency ＞90%
Overload Protection 120%, turns off after 1 minute; 150%, turns off after 10 seconds
General Parameters
Isolation Method High frequency isolation
Protection Level IP20
Cooling Method Intelligent air cooling
Relative Humidity 5%-95% (no condensation)
Operating Temperature（℃） -20~+45
Altitude（m） 2000
Noise（dB） ＜55
Display Mode LCD+LED
Communication RS485-RTU
Reference Weight 75 120
Reference Size (W*D*H) (mm) 600*550*720 600*550*920

Updated June 12, 2026

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Application Scenarios

  • A remote, isolated log cabin stands against a backdrop of a clear sky and a densely forested hillside. Two pickup trucks are parked in front of the cabin, and in the foreground to the right stands a group of ground-mounted solar photovoltaic panels tilted towards the sun, surrounded by wild grass, vividly depicting a remote mountain dwelling's independent power supply via off-grid solar power.
    Remote homes & cabins
    Remote homes and cabins can achieve independent, stable, and low-maintenance off-grid power supply through solar energy, providing reliable clean energy for lighting, appliances, and daily life.
  • On a vast green pasture, rows of large solar photovoltaic panels are neatly erected in parallel, stretching into the distance. Under the blue sky and white clouds, flocks of sheep graze and rest leisurely on the grass beneath the photovoltaic panels, which also provide some shade for the sheep. This vividly demonstrates the ecological circular economy scene of
    Farms & fisheries, ranches
    The system provides a stable and efficient independent power supply via solar energy, ensuring reliable operation of irrigation, lighting, and agricultural equipment.
  • Under a clear blue sky dotted with white clouds, a modern communication base station stands atop a mountain. On the right side of the image is a towering steel communication tower, housing microwave antennas and signal base station equipment, with white equipment control cabinets beside it. To the left of the foreground, a green mesh fence surrounds several rows of solar panel arrays, tilted towards the sun, providing clean energy for the entire base station.
    Telecom base stations
    In communication base stations, this system provides a stable and continuous off-grid power supply, ensuring reliable operation of equipment in environments with no or low power.
  • A heartwarming aerial view at sunset showcasing the electrification achievements of a remote village. Against a backdrop of beautiful orange-red sunset and distant mountains, several wooden houses dot the village, many with solar panels on their roofs. Warm yellow light shines from every window, and villagers stroll and chat among the dirt roads and green grass. In the foreground stands a large, neatly arranged group of ground-mounted solar photovoltaic panels, symbolizing the clean microgrid power system currently in use by the entire village.
    Rural electrification projects
    This system provides reliable and independent off-grid power supply via solar energy, enabling stable and reliable power output for areas without electricity or with unstable power supply
  • An aerial photograph taken from above. The main subject is the blue corrugated tile roof of a large building (such as an agricultural warehouse or residence), with its sun-facing slope neatly and densely covered with a large array of square solar photovoltaic panels. Surrounding the building is a vast expanse of green grass, dirt paths, and other agricultural facilities, clearly demonstrating the application scenario of using large-area rooftop photovoltaics for independent power generation and energy storage.
    Backup power for unstable grids
    In areas with unstable power grids, this system provides fast and reliable backup power, ensuring that critical equipment continues to operate even during frequent power outages.

Why Choose This System?

  • Optimize off-grid performance to ensure high reliability

  • Integrated design shortens EPC installation time

  • LiFePO₄ battery ensures safety & long cycle life

  • Supports multiple charging sources

  • Ideal for installers, distributors, and rural projects

Learn more about off-grid energy solutions

FAQ

Q1:Can this off‑grid system be customized for OEM/ODM projects?

A1:Yes. We support OEM/ODM customization including system configuration, battery capacity, enclosure design, communication interface, and branding, enabling distributors and EPC partners to deliver tailored off‑grid solutions.

Q2:What battery types does the system support?

A2:This system is designed specifically for lithium iron phosphate batteries and features optimized charging curves, precise battery management system (BMS) communication, and built-in smart activation to ensure safety and reliability in off-grid applications.

Q3:Does the system provide uninterrupted power supply?

A3:Yes. It supports both mains bypass and inverter output modes with seamless UPS‑grade switching to ensure continuous power for critical loads.

Q4:What charging modes are available?

A4:The system offers AC/PV priority charging, PV‑only charging, and hybrid charging modes, allowing flexible deployment in remote, unstable‑grid, or fully off‑grid environments.

Q5:Is the system suitable for harsh or remote environments?

A5:Yes. The system has comprehensive protection measures and a robust, integrated design, making it highly adaptable to various environments.

Q6:What control technology does the system use?

A6:It adopts fully digital voltage and current dual closed‑loop control with advanced SPWM technology to output pure sine waves for stable and reliable AC power.

Q7:Is installation complicated for EPC or installers?

A7:No. The system integrates the controller, inverter, battery, and BMS into a compact all‑in‑one design, significantly reducing installation time and wiring complexity.

Page Summary

This off-grid solar energy storage system is a complete off-grid energy storage solution that integrates solar panels, batteries, and inverters. The system can meet the backup power needs of remote residences, farms, telecommunications stations, and homes.

Hot Tags : off grid PV energy storage system off grid UPS solar storage system off grid hotel energy storage solution integrated off grid solar power system OEM off grid solar storage system off grid solar system for rural electrification off grid solar inverter battery system all in one off grid solar system
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GreenMore is deeply engaged in the field of energy storage, focusing on the research and development, production and sales of energy storage systems, providing efficient and reliable one-stop energy services for households and industrial and commercial customers. Products include wall-mounted and stacked energy storage batteries, commercial energy storage cabinets and solar energy storage systems, supporting 3-30KWh household scenarios and 50KW/100KWh to 15MW/30MWh industrial and commercial energy storage needs, meeting full-scenario energy management.
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