Battery Powered off-Grid PV Inverter All-in-One Energy Supply

• Customization: Available
• Application: PV Supporting Energy Storage
• Installation: Cabinet Floor-Mounted
• Energy Capacity: 100kWh-500kWh
• Power Configuration: Above 500kW
• Cycle Life: 8000 Cycles (80%DOD)
• Cooling Method: Natural Cooling (Small Units)
• Product Certification: CE
• Use Case: Household/Home Use / Small and Medium-Sized Commer
• Host Output Capacity: 3000W
• Key Word: Solar Power Generation System
• Transport Package: According to Your Request
• Specification: standard
• Trademark: OEM
• Origin: China

Product Description

Product Description

Designed specifically for off-grid areas, weak grids, or regions with frequent power fluctuations, this All-in-One Off-Grid PV Inverter Energy Storage System serves as a true independent energy hub. The system deeply integrates a high-performance bidirectional power conversion system (PCS), a smart MPPT solar controller, an advanced Battery Management System (BMS), and automotive-grade Lithium Iron Phosphate (LiFePO4) battery packs, completely breaking down the barriers of traditional split-component energy storage systems.
Technologically, the system utilizes advanced DSP control algorithms and high-frequency isolation technology, providing exceptional surge capacity to perfectly drive various complex loads. The built-in smart MPPT controller supports a wide voltage input range, maximizing solar energy harvesting even during low-light conditions in the early morning or late afternoon. Furthermore, it supports seamless multi-source energy coordination: prioritizing solar power and battery charging when sunlight is abundant, automatically switching to battery discharge during cloudy days or at night, and seamlessly integrating with grid power or diesel generators for supplementary charging when battery levels are critically low. This creates an independent, reliable, and highly intelligent off-grid microgrid.

Key Features & Advantages

Key Features 

1.Modular Design for Easy 2.Expansion
3.Easy to Install and Use
4.LED Battery Display
5.Quick Plug Interface
6.Optional Wi - Fi Solution
7.Independent Control
8.Safe and Stable
9.BMS Protection System

Ultimate Safety & Ultra-Long Lifespan: Utilizes automotive-grade LiFePO4 cells featuring high-temperature resistance and explosion-proof characteristics. With over 6,000 cycles and extremely low long-term degradation, it guarantees a high return on investment.

All-Scenario Adaptability: Features an outstanding wide-voltage input range and overload protection mechanisms, effortlessly withstanding harsh climates and complex grid environments. Supports multi-unit parallel connection for flexible capacity expansion, easily meeting power demands from small households to large commercial facilities.

Smart Remote O&M: Built-in Wi-Fi/4G communication module allows users to monitor device status, battery SOC, and historical generation data in real-time via a mobile app or PC. Supports OTA remote firmware updates and proactive fault warnings.

Specification

Item	specification	remarks
Nominal Voltage	51.2V	Under 0.2C charge/discharge conditions
Typical Capacity	100Ah
Energy	5120Wh
Battery Internal Resistance	≤180mΩ	At AC 1KHz
Charge Limit Voltage	58.4V	Maximum Value
Operating Voltage	44.8~58.4V
Standard Charge Current	20A
Max Charge Current	100A
Discharge Cut-off Voltage	44.8V
Standard Discharge Current	20A
Max Discharge Current	100A
Configuration	16S2P
Cell Model	LFP 3.2V 50Ah
Main Casing Material	Cold-rolled Steel Plate

Notice

Certifications

Why Choose Our Factory

Company Profile

Tianjin Guitai New Energy Technology Co., Ltd. was established in 2014 and is located in Yangjiayuan Development Zone, Jinghai District, Tianjin. Since its inception, it has been committed to "empowering the world with sunshine and letting green illuminate the future". The company not only has a complete R&D system, but also is equipped with advanced production equipment and strict quality control processes. From raw material procurement to product delivery, every link has been tested layer by layer to ensure the reliability and stability of product quality. In addition, we have established a professional after-sales team to provide customers with a full range of technical support and after-sales services, so that customers have no worries. Team members use professional knowledge and professionalism to inject strong impetus into the company's development, and also provide customers with reliable support and guarantee.
With its excellent technical strength and high-quality services, it has won the trust of many customers. Its business covers many provinces and cities in China and has gradually expanded to the international market. In the future, the company will continue to uphold the development concept of green, innovation and win-win, and contribute to the development of the global energy industry.

FAQ

Q1: Can this all-in-one unit directly replace my existing traditional split inverter and battery setup?
A: Absolutely. It integrates all core functions of traditional split systems. With internal wiring pre-tested and optimized at the factory, it not only saves space but also significantly reduces safety hazards associated with on-site wiring.
Q2: Will the system lose power during continuous cloudy or rainy days without solar energy?
A: No. The system is equipped with a high-capacity battery pack that seamlessly switches to battery discharge mode when sunlight is insufficient. Additionally, it supports connecting a diesel generator as a supplementary energy source, ensuring continuous power supply even in extreme weather conditions.
Q3: Is the installation and post-sale maintenance complicated?
A: The minimalist design makes installation incredibly easy—typically requiring only the connection of solar panels, loads, and grounding wires. It is virtually maintenance-free, as the smart BMS automatically handles cell balancing and thermal management. You only need to check the operation reports periodically via the app.

Q4: Can the system support high-power appliances like air conditioners or water pumps?
A: Yes. The system outputs pure sine wave AC power and features strong overload capability, easily handling the high surge currents (starting impact) of inductive loads like motors and compressors.

Q5: What happens if the battery capacity is no longer sufficient for my future needs?
A: The system supports flexible modular expansion. You can easily add extra battery modules in parallel to increase the total capacity without needing to replace the entire unit.