all in one solar charger Inverter with battery storage-Why Choose ONESUN?OEM/ODM Solutions
Jan 27, 2026
As the global energy structure rapidly evolves toward clean, intelligent, and decentralized solutions, solar power generation and energy storage systems have become some of the most in-demand energy options for residential, commercial, and even industrial applications. Against this backdrop, All-in-One Solar Charger Inverter systems are rising quickly due to their high level of integration, efficiency, and ease of installation. As one of the industry's leading manufacturers.
ONESUN has not only achieved continuous technological breakthroughs, but also delivers best-in-class customized battery pack and solar energy storage solutions to global partners through its mature OEM (Original Equipment Manufacturing) and ODM (Original Design Manufacturing) service system.
I. All-in-One Solar Charger Inverter - The Core Integrator of Modern Energy Systems
An All-in-One Solar Charger Inverter is an advanced energy solution that integrates an MPPT solar charge controller, inverter, battery energy storage, and intelligent Battery Management System (BMS) into a single compact unit. This integrated design eliminates the need to purchase and connect multiple individual components, significantly reducing installation complexity and commissioning time. With just one device, users can achieve solar power generation, energy storage, AC power output, and intelligent system management.
Parameters
| Parameters for Wall All-in-one unit | |||
| Model | WSA-6KW51.2V100AH | WSA-6KW51.2V200AH | WSA-6KW51.2V300AH |
| System Data | |||
| Nominal Output Power | 6000W | ||
| Voltage Regulation (Battery Mode) |
230VAC ± 5% | ||
| Efficiency (Peak) | 93.50% | ||
| Transfer Time | 10ms (For Personal Computers) ; 20ms (For Home Appliances) | ||
| Max. PV Array Open Voltage | 500VDC | ||
| Max. PV Array Power | 6000W | ||
| MPPT Input Voltage Range | 60~450VDC | ||
| Max. Input Current | 27A | ||
| MPPT Tracker / Strings | 1 | ||
| Max. Solar Charge Current | 120A | ||
| Max. AC Charge Current | 100A | ||
| Max. Charge Current | 120A | ||
| Inverter Data | |||
| Rated Power | 6000VA/6000W | ||
| AC Voltage | 230VAC | ||
| Voltage Range | 170~280VAC (For Personal Computers) ; 90~280VAC (For Home Appliances) | ||
| Phase | Single-phase | ||
| Frequency Range | 50Hz / 60Hz (Self-adapting) | ||
| Surge Power | 12000VA | ||
| Ingress Protection Rating | IP20 | ||
| Warranty | 2 Years | ||
| Battery Data | |||
| Nominal Voltage | 51.2V | ||
| Rated Capacity | 100Ah | 200Ah | 300Ah |
| Max. Charging/Discharging Current | 100A | 200A | 300A |
| Rated Capacity | 5.12kWh | 10.24kWh | 15.36kWh |
| Cell Type | LiFePO4 | ||
| Cycle Life | ≥6000 Times @ DoD > 80% | ||
| Dimensions (W*D*H) | 235*480*1151.2mm | 235*480*1612.4mm | 235*480*2073.6mm |
| Net Weight | Approx. 52kg | Approx. 93kg | Approx. 134kg |
| Warranty | 10 Years | ||
| Protection | |||
| AC Overcurrent | Yes | ||
| AC Overvoltage | Yes | ||
| Overtemperatur Protection | Yes | ||
| Smart Load Management | Yes | ||
| On Grid | Yes | ||
| General Data | |||
| Interface | RS485 / RS232 / CAN (Optional: WiFi / Bluetooth) | ||
| Display | Touch Bottons | ||
| Operation Temperature | 0℃~50℃ | ||
| Relative Humidity | 0%~95% (Non-condensing) | ||
| Altitude | >2000m Derating | ||
| Charging/Discharging Temperature Range | Charging: 0℃-50℃ ; Discharging: -15℃~60℃ | ||
| Parallel Function | Yes (Optional) | ||
| Safety Standard |
EN/IEC 62109-1, EN/IEC 62109-2 |
||
Specifically, ONESUN's All-in-One series supports grid-tied, off-grid, hybrid energy storage, and emergency backup power modes. The system can automatically switch operating modes based on real-time power usage scenarios, making it suitable for residential homes, commercial buildings, and small-scale industrial installations. Thanks to its modular and stackable design, the system also allows flexible expansion-from basic storage capacity to larger-scale energy storage-offering excellent scalability and customization potential.
II. ONESUN: End-to-End Advantages from Core Batteries to System Integration
Founded in 2014, ONESUN is a comprehensive energy storage manufacturer with strong in-house capabilities in R&D, design, and production. Its business covers lithium batteries, battery packs, inverters, and complete photovoltaic energy storage systems. ONESUN consistently adopts Class A LiFePO₄ (Lithium Iron Phosphate) battery cells, known for their superior safety, thermal stability, and long cycle life-making them one of the most preferred battery technologies in today's energy storage market.
Compared with the common industry model of sourcing components from multiple suppliers, ONESUN leverages a vertically integrated production chain, bringing battery cells, BMS, inverters, and software control systems under a unified R&D and manufacturing framework. This deep integration significantly improves system compatibility and long-term stability, while also providing higher quality assurance and faster response times for OEM and ODM customization projects.
III. OEM / ODM Customization Services - Creating Differentiated Brands and Products
For companies, distributors, and system integrators looking to enter new markets, build private labels, or develop differentiated energy solutions for specific applications, ONESUN offers comprehensive OEM and ODM services. These services include customization of product appearance, battery capacity, software interface and control logic, power output specifications, and even complete system architecture.
In the rapidly expanding global off-grid power market, for example, ONESUN provides customized all-in-one solar generation and energy storage solutions tailored for PAYGO (Pay-As-You-Go) business models. These solutions can be optimized based on local market demands, while also supporting branding elements, user interface design, and communication protocols-helping partners accelerate product deployment and market penetration.
IV. Global Presence and Industry Value
ONESUN's products and energy solutions have been exported to more than 70 countries and regions, serving residential users, offices, commercial facilities, and large-scale energy storage projects. In the global transition toward renewable energy, these integrated, high-performance, and highly customizable solutions play a crucial role in promoting energy independence, reducing carbon emissions, and improving overall energy efficiency.
For end users, All-in-One systems significantly lower installation barriers, simplify maintenance, and maximize energy utilization efficiency. For business partners, ONESUN's OEM/ODM capabilities enable rapid development of market-aligned product lines, while strengthening brand differentiation, competitiveness, and long-term profitability.
Overall, All-in-One Solar Charger Inverter systems, combined with ONESUN's OEM and ODM battery pack solutions, represent a key trend in today's renewable energy industry. Backed by strong technical expertise, an integrated product portfolio, and a global service network, ONESUN delivers multi-level solutions ranging from individual battery packs to complete energy systems. For businesses and users seeking high performance, cost efficiency, and fast market deployment, choosing ONESUN's integrated and customized solutions is undoubtedly an effective pathway to success in the renewable energy market.
Article Source: Lithium battery manufacturer - ONESUN China
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