Off-Grid Solar Inverter + Lithium Battery Energy Storage Solution-OneSun

Off-Grid Solar Inverter + Lithium Battery Energy Storage Solution — ONESUN Builds Stable and Reliable Power Systems for Global Off-Grid Users

As global energy transition accelerates and off-grid demand continues to grow, a safe, durable, and easy-to-deploy off-grid solar energy storage system is becoming essential for households, small businesses, islands, villages, and remote areas. With over 10 years of experience in the energy storage industry, ONESUN delivers highly integrated, one-stop off-grid system solutions through its “Inverter + Lithium Battery Dual-Factory” model.
Off-Grid Solar Inverter

I. Why Choose ONESUN as Your Off-Grid Solar Power Supplier?

Complete Industrial Chain｜Inverter + Lithium Battery, Fully Self-Developed & Self-Manufactured

ONESUN owns independent lithium battery factories, inverter factories, BMS teams, and PCBA production lines—achieving full control over all core components.

A-grade LiFePO₄ cells for lithium batteries

In-house automotive-grade BMS with 10+ layers of protection
Inverters built with Infineon, Toshiba, and other top-tier components

A complete industrial chain = more stable quality, more reliable delivery, and more competitive pricing.

All-in-One Solar System

II. What Does the ONESUN Off-Grid System Include?

ONESUN provides a complete Off-Grid Solar Power Kit, fully integrated and ready to deploy:

Pure sine wave off-grid inverter: 1kW–20kW, with high-frequency and low-frequency options
Lithium battery energy storage: wall-mounted / rack-mount / stackable / all-in-one
Solar panels (optional)
PV cables, breakers, mounting accessories, and full installation materials

This solution covers homes, farms, businesses, light industrial use, and microgrid applications.

III. Technical Advantages: More Stable, Safer, and Longer-Lasting Off-Grid Power

1. Highly Secure Energy Storage Technology

LiFePO₄ battery cycle life ≥ 6000 cycles
BMS supports parallel expansion, temperature protection, RS485/CAN communication
Auto-protocol recognition for enhanced inverter compatibility

2. High-Performance Inverter

Pure sine wave output for appliances, agricultural equipment, and communication systems
MPPT tracking efficiency ≥ 99%
Supports solar + grid + generator triple input
Seamless switching for stable off-grid operation

Off-grid photovoltaic inverter and lithium battery energy storage manufacturer

3. Modular Design for Easy Expansion

Systems can expand from 1kWh to 50kWh through parallel configuration—ideal for homes, businesses, and small commercial users.

IV. Core Problems ONESUN Solves

V. Global Delivery Capability: Experience in 70+ Countries

ONESUN products have been delivered to Africa, Southeast Asia, the Middle East, Latin America, and Europe, serving homes, farms, telecom sites, schools, clinics, islands, and NGO projects—backed by mature overseas delivery and after-sales systems.

As a fully integrated manufacturer with both inverter and battery production capabilities, ONESUN delivers off-grid solar systems that are more stable, more durable, and more cost-effective. From R&D to manufacturing, and from household users to microgrid projects, ONESUN is committed to high quality and global service—providing reliable, sustainable green power to off-grid regions around the world.

all in one solar system