Description
Fronus LD55 Ultra – Technical Specifications
| Specification | Details |
|---|---|
| Brand | Fronus |
| Model | LD55 Ultra |
| Battery Type | LiFePO₄ |
| Battery Configuration | 1P16S |
| Nominal Energy | 5.12kWh |
| Nominal Voltage | 51.2V |
| Rated Capacity | 102–106Ah |
| Operating Voltage Range | 42.4–57.6V |
| Recommended Current | 100A |
| Maximum Charge Current | 100A |
| Maximum Discharge Current | 135A |
| Peak Current | 200A for 10 Seconds (Up to 35°C) |
| Life Cycle | >8000 Cycles at 70% DOD |
| Communication | CAN / RS485 |
| WiFi | Built-In WiFi |
| HMI | 3.5-inch LCD Touchscreen |
| Indicators | Status Light + SOC Power Indicators |
| Monitoring | Cell-Level Voltage & Temperature Tracking |
| Charging Temperature | 0°C to +55°C |
| Discharging Temperature | -20°C to +55°C |
| Storage Temperature | -20°C to 30°C (12 months); 30°C to 60°C (6 months) |
| Single String Quantity | 16 pcs |
| Dimensions (W × H × D) | 335 × 626 × 169 mm |
| Net Weight | 42 kg |
| Gross Weight | 46 kg |
| Installation | Wall / Floor / Rack Mounting |
| Enclosure Protection | IP40 |
| Cooling | Natural Cooling |
| Humidity | 20–85% RH (Non-Condensing) |
| Altitude | <3000m |
| Warranty | 5 Years |
| Certifications | IEC 62477, IEC 62619, IEC 60730, IEC 63056, IEC 61000, UN38.3 |
Fronus LD55 Ultra 5.12kWh Lithium Battery
The Fronus LD55 Ultra 5.12kWh Lithium Battery is a LiFePO₄ energy-storage solution designed for compatible residential and commercial solar backup systems.
Featuring a 51.2V nominal voltage, 102–106Ah rated capacity and 5.12kWh nominal energy, the LD55 Ultra combines high discharge capability with intelligent monitoring and flexible installation.
5.12kWh LiFePO₄ Energy Storage
The LD55 Ultra uses Lithium Iron Phosphate (LiFePO₄) battery technology in a 1P16S configuration. Its operating voltage range is 42.4V to 57.6V.
135A Maximum Discharge
The battery has a recommended current of 100A. Maximum charging current is rated at 100A, while maximum discharge current reaches 135A.
For short-duration high-power requirements, the battery supports a 200A peak current for 10 seconds at temperatures up to 35°C.
8000+ Cycle Rating
According to the manufacturer datasheet, the LD55 Ultra is rated for more than 8,000 cycles at 70% Depth of Discharge (DOD).
3.5-Inch LCD Touchscreen
A built-in 3.5-inch LCD touchscreen, status light and SOC power indicators provide convenient access to important battery operating information.
Built-In WiFi & Cell-Level Monitoring
Built-in WiFi enables remote access, while cell-level monitoring provides individual cell voltage and temperature tracking for more detailed battery monitoring.
CAN & RS485 Communication
The LD55 Ultra supports both CAN and RS485 communication interfaces for communication with compatible solar inverter systems.
Flexible Installation
The battery supports wall, floor and rack mounting, providing flexibility for different indoor solar energy-storage installations.
IP40 Indoor Protection
The LD55 Ultra carries an IP40 enclosure protection rating and is intended for indoor use. Natural cooling is used for thermal management.
Key Features
- 5.12kWh nominal energy
- 51.2V nominal voltage
- 102–106Ah rated capacity
- LiFePO₄ battery chemistry
- A+ grade quality cells
- 42.4–57.6V operating voltage range
- 100A recommended current
- 100A maximum charge current
- 135A maximum discharge current
- 200A peak current for 10 seconds, up to 35°C
- >8000 cycles at 70% DOD
- Built-in WiFi
- 3.5-inch LCD touchscreen
- Status light and SOC indicators
- Cell-level voltage and temperature monitoring
- CAN / RS485 communication
- Wall / floor / rack mounting
- IP40 enclosure protection
- Natural cooling
- 5-year warranty
Ideal Applications
- Residential hybrid solar systems
- Home battery backup
- Commercial solar backup
- Compatible 48V-class solar systems
- Indoor energy-storage installations
Buy the Fronus LD55 Ultra 5.12kWh Lithium Battery from Satluj Solar for genuine solar energy-storage equipment and professional system guidance.
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