
50kW hybrid solar inverter & high-voltage LFP battery
Commercial & Industrial
Solar Energy Storage System
With Felicitysolar’s 50kW hybrid inverter and high-voltage battery packs, you gain more than just a power system—you gain energy freedom. Whether for homes, businesses, or off-grid installations, this system delivers dependable performance, intelligent energy management, and significant cost savings, empowering you to take full control of your energy utilization.
System Applications
01
Residential Energy Storage
A solar system brings peace of mind to every family, serving as an emergency backup during blackouts or grid instability. As a reliable commercial energy storage system for residential use, beyond reliability, it also helps reduce electricity bills—a beneficial, long-term investment.
02
Small to Medium-sized Commercial & Industrial Applications
A solar system ensures stable power supply for daily operations in some applications such as factories, hospitals, hotels, and supermarkets. Combined with the FSOLAR real-time monitoring platform, this commercial energy storage solution gives operators full visibility into energy usage, enabling smarter energy management and significant cost savings.
03
Off-grid environments
A solar system achieves true energy independence by providing sustainable electricity, integrating with a commercial energy storage system, and enabling people to enjoy a convenient and comfortable life in areas beyond the reach of the grid.
System Features
Battery configuration for IVGM50KHP3G2: Each FLH48100UG2 battery cluster is configured with 12 battery modules, providing 61.44kWh nominal capacity and a working voltage range of 556.8–691.2V. Multiple inverter systems must use independent battery banks.
User Cases
From small commercial spaces to large-scale industrial applications, various user cases of Felicitysolar show the benefits of well-designed commercial energy storage systems.
Upload one 50kW system to earn 50 points!
Join the 50kW Campaign!
• Lithium Battery
• Coupon
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A brand-new FLA48100 lithium battery, loads of coupons, plus an All-Inclusive Trip to Guangzhou are waiting for you!
Upload one 50kW system to earn 50 points!
Join the 50kW Campaign!
• Lithium Battery
• Coupon
• Free Trip
A brand-new FLA48100 lithium battery, loads of coupons, plus an All-Inclusive Trip to Guangzhou are waiting for you!
Related Products






IVGM 50KHP3G2
This is a multifunctional inverter, combining the functions of an inverter, solar charger, and battery charger to offer uninterruptible power support with a portable size. Its comprehensive LCD display offers user-configurable and easily accessible button operation, such as battery charging, AC/solar charging, and acceptable input voltage based on different applications.
FLH 48100UG2
FLH48100UG2 is equipped with a lithium iron phosphate battery designed for household use. Developed based on customer needs and market demands, this advanced battery storage solution provides high-quality, reliable power for various devices. The product features a long lifetime, suitability for high-temperature environments, and a compact design that requires minimal installation space.











FLH -E60
The cabinet-based 50kW energy storage system integrates safety, durability,scalability,and intelligent features, making it ideal for residential, commercial, and off-gridapplications. Its design allows worry-free outdoor installation, perfect for factories,hospitals, schools, supermarkets, and similar scenarios.
Product Comparison
This table highlights the key features of Felicitysolar’s hybrid inverter and lithium battery products, making it easy for customers to compare power, capacity, and suitability for different applications.
| Parameter |
IVGM 25–50kW-P3G2
|
FLH48100UG2
|
FLH-E60
|
|---|---|---|---|
| Type | Hybrid Inverter | Rack-Mount Lithium Battery | Cabinet-Based High-Voltage Battery |
| Power / Capacity | 25–50kW | 5.12kWh per module | 61.44kWh per cabinet |
| Ideal Use | Home & Small-Medium Business | Home & Small Business | Commercial & Industrial |
| Installation | Indoor / Outdoor | Rack-Mount | Cabinet, suitable for outdoor installation |
| Expandable | Up to 12 units in parallel | Up to 16 modules per cluster | Up to 16 clusters |
| Safety | IP65, Reliable | IP20, BMS Protected | IP55, Robust |
| Smart Monitoring | WiFi + FSOLAR App | RS485 / CAN-BMS & Remote Monitoring | RS485 / CAN + Remote Monitoring |
Why Choose Felicitysolar for Commercial Energy Storage Solution
Proven System Integration Experience
We specialize in integrating hybrid inverters and high-voltage LFP batteries into complete, ready-to-deploy commercial energy storage systems.
Scalable and Flexible System Design
Modular design enables easy expansion of small applications into large commercial and industrial applications without the need for redesign.
Strong Global Project Background
Felicitysolar systems have been used in various countries and regions, meeting different grid conditions and application scenarios.
Reliable Products and Long Service Life
Products are designed for long service life, safety, and stable performance under harsh working conditions.
FAQs
1. CT, Grid & Operating Mode
- Q: What is the standard CT rating for the T-REX-50KHP3G1? What is the maximum CT supported by the inverter?
A: The standard CT is 300 A / 100 mA, and the maximum supported CT rating is 300 A. - Q: Can the 50K inverter limit the power drawn from the grid?
Yes. This can be achieved through the Grid Peak Shaving function. - Q: Can the 50K inverter operate without batteries?
A: Yes. The inverter can operate without batteries in grid-tied mode. - Q: Can the 50K inverter connect to a generator?
A: Yes, the 50K inverter can be connected to a generator.
2. Battery Connection & Compatibility
- Q: How should the batteries be connected when using 50K in parallel configuration 1 & 2?
A: Connect the battery packs to the inverter battery terminals through a DC breaker, following the battery wiring diagram for the parallel configuration. - Q: Can the 50K inverter work with two independent high-voltage battery clusters?
A: Yes. The 50K inverter has two independent battery ports. However, communication has only been tested with our own batteries, so compatibility with other battery brands cannot be guaranteed.
- Q: Can the 50K inverter operate at full load?
A: Yes, full-load operation is supported when only a small amount of inductive load is connected. Excessive inductive loads should be avoided.
3. Wiring, Communication & Modbus
- Q: If the CT is directly connected to the inverter, what is the maximum CT cable length and recommended cable size? If an external meter is used, what is the maximum communication cable length?
A: The CT cable length can be up to 10 m. The recommended cable size is 18 AWG. If an external meter is used, the communication cable length can be up to 1000 m. - Q: How should the DIP switches be set for CAN communication?
A: Set all SW1 DIP switches to ON, then restart the inverter after changing the DIP switch settings. - Q: How can the 50K inverter support Modbus data reading for integration with the customer’s smart home system?
A: The 50K inverter can be connected through the RS485 port. Use the following pins: Pin 3: 485_A3; Pin 4: 485_B3. - Q: What is the maximum length of the parallel communication cable?
A: The cable length should not exceed 40 m. A shorter cable is recommended for better stability.
4. Settings, Firmware & App Display
- Q: What is the default password for entering the settings menu?
A: The default password is 123456. - Q: The PV energy statistics of the 50K inverter show 0. How can this be resolved?
A: Upgrade the firmware to GD106 or above and Slave108 or above. - Q: If the 50K inverter is connected to microinverters, can the microinverter data be displayed in the app?
A: Yes. The Wi-Fi firmware should be upgraded to V2.12 or above first. - Q: The SN displayed on the inverter screen is different from the SN shown on Fsolar. How can this be fixed?
A: After upgrading the inverter, power off the unit and restart it.
5. Parallel Operation & Output Performance
- Q: What is the maximum number of 50K inverters that can be connected in parallel?
A: Up to 12 units can be connected in parallel. - Q: Does the 50K inverter support unbalanced output?
A: Yes, but with limits. If any phase reaches 110% of the balanced output power, it can operate for only 10 minutes. If any phase reaches 120%, it can operate for only 1 minute. - Q: What is the inverter’s self-consumption?
A: When the inverter is not started and has no output, with only the screen on, the standby consumption is about 19 W. When the inverter is running in off-grid mode with no load, the no-load consumption is about 210 W. Under load, the loss depends on inverter efficiency. The maximum inverter efficiency is 97.6%. - Q: The B55 grid phase sequence is reversed. How should this be handled?
A: Set the grid phase sequence type to reverse sequence in the inverter settings. Note: when two units are operating in parallel, both units must be set to positive sequence.
6. How do we establish cooperation?
We offer five cooperation models: distribution, regional agency, project-based cooperation, OEM, and white-label projects, enabling partners to deliver flexible commercial energy storage solutions for different markets.
7. What support is available?
All commercial energy storage systems include fast after-sales support (12-hour response, 24-hour resolution), with remote, phone, and on-site technical service. Distributors and installers also receive marketing support, training, and technical documentation.
8. Can this solution support long-term scalability and project growth?
Yes. Effective commercial energy storage solutions are built with modular architecture and flexible system design, allowing businesses to scale capacity as energy demand grows without disrupting existing operations.
9. Can the system be customized for different project requirements?
Yes. System capacity, inverter quantity, and battery configuration can be adjusted based on site conditions, load characteristics, and future expansion plans, allowing the solution to fit different project scales and application scenarios.


