Infinisolar, a brand incubated by MUST Group, a globally recognised leader in the photovoltaic inverter industry, inherits the same legacy of quality, innovation, and customer-centric values.

1. 1-Year Warranty & Rapid Resolution

All products come with a 1-year warranty. Should any quality issue arise, our dedicated support team guarantees a resolution within 24 hours.

If repairs require replacement parts (motherboards, displays, control panels, WiFi modules, etc.), we ship them free of charge to minimise downtime.

Customers may also choose to ship their unit (at their expense) to a local MUST service centre for professional repair.

2. Direct Access to Technical Support

Whether you need help with PV panel configuration, battery integration, or product troubleshooting, our expert engineers are available 24/7 via phone or WhatsApp at +86 17788797642.

3. Lifelong Product Support

Beyond the warranty period, we continue to supply genuine parts at competitive prices, ensuring your system remains operational for years to come. Parameter Description:

1. 100% pure sine wave AC output.

2. Dual AC output, main load output 6200W, second load output 6200W. The second output can be controlled by setting the cut-off voltage or SOC.

3. With twice the surge power (12400W), it effortlessly starts inductive loads that have high inrush currents.

4. Power Factor: 1

5. No-load power consumption is 30W~50W.

6. Max. PV input voltage: 450V

7. Wide MPPT operating voltage range: 60V~360V

8. MPPT start voltage: As low as 60V (for 48V battery system). This extends your daily power generation by capturing energy earlier in the morning and later at dusk. All-in-One Solar Inverter
Infinisolar PRE800-6248 inverter is a 6.2KW 48V to 220V/230V/240V single-phase off-grid all-in-one solar Inverter, with built-in 100A MPPT charger and 100A AC charger. Combining solar, AC utility/ generator, and battery to create an uninterruptible power supply. Smart Dual AC Output
Inverter output power to critical and non-critical loads with priority-based energy allocation, ensuring the uninterrupted operation of important electrical appliances. Dynamically regulate the power of the main load and the second load; the maximum power of the second load is not limited and can reach the inverter's full rated power. The second load can be manually turned on/off, or automatically controlled by setting either battery voltage or SOC parameters. Support to Work Without Battery
Battery-less operation enables direct solar-to-load power conversion, harnessing solar energy for immediate appliance operation. And in this scenario, the rated output power is up to 6200W, which is the same as the inverter's full rated power. High Compatibility With Various Batteries
The inverter features wide battery compatibility, allowing connection to 48V Lead-acid (AGM, GEL, FLA, SLA.) batteries, Lithium (LiFePO4) batteries and user-defined batteries. Dual Lithium Battery Auto Activation
When the lithium battery is dormant, the mains AC power and photovoltaic can automatically detect its status and activate it back to working state. The dual activation function ensures the dormant lithium battery can be activated during both day and night. Smart Charging Algorithm For Different  Batteries
Compared to other inverters, we have adopted a 3-step charging algorithm for lead-acid battery, a 4-step charging algorithm for Lithium battery, which unlocks 30% longer battery life with precision parameter tuning. Segmented Charging & Discharging Modes
There are three battery charging modes that are optional, i.e. only solar, solar priority, and utility & solar hybrid charging; and three load output working modes (SBU, SOL, UTI) are available, to meet different application requirements. Optimisation Solar Supply Scheduling
Featuring two solar supply modes: load priority and battery priority. Load priority mode can directly use solar energy to power home appliances for optimal self-consumption. Battery priority mode will charge the battery first for reliable backup energy. Let you align solar flow with your specific energy requirement. Unique Solar Power Balance Function 
Dynamically adjusts solar input power to precisely match load consumption and battery storage, making the photovoltaic system shift from "extensive power generation" to "smart electricity use", achieving efficient coordination among power generation, power use and power storage. Seamless AC & DC Auto Switching
Can work like UPS. 10ms/20ms AC & DC auto-switching ensures uninterrupted power for critical loads during grid transitions. Pure Sine Wave Solar Inverter
6.2KW rated power, dual AC 230V pure sine wave output, suitable for 98% of household and office appliances such as refrigerators, lamps, televisions, fans, air conditioning, and other AC loads. Wired PC Monitoring
Through the USB-B interface that integrates RS485 functions and a communication cable, wired PC monitoring of inverters can be realised. The communication cable is included in the package list. (Note: PC monitoring and Wi-Fi monitoring cannot be enabled at the same time.) WiFi Remote Monitoring
Relying on the built-in industrial-grade WiFi module and external high-gain WiFi antenna, users can effectively access real-time device status or adjust parameters anytime & anywhere through a mobile app or PC web. And no need to buy an extra WiFi module, really an ideal cost-saving choice for your solar power system. Colour LCD Display & LED Indicators
With function buttons and an LCD, indicating the operating status and input/output power information, allowing you to set parameters like battery charging current, working modes, etc. Advanced Communication and Integration
Through the built-in communication protocol and multiple independent communication interfaces (RS485, CAN, USB, WiFi, AGS), seamless communication between the inverter and external monitoring devices, generators and lithium batteries can be easily achieved. BMS Communication With LI Battery
The inverter is built with BMS protocols for seamless lithium battery communication. Compatible with MUST and PYLON lithium batteries via CAN protocols. 360 All Round Protections
The hybrid solar inverter 360 provides comprehensive protection with various features, such as short circuit protection, over-voltage and under-voltage protection, overload protection, and reverse polarity protection. These safety measures significantly enhance the security of your electrical circuits and usage.