LARGE-FORMAT HIGH-VOLTAGE BATTERY STACK
51.2V 280Ah High-Voltage LiFePO4 Battery System
MODEL · 51.2V280Ah-HV
The 51.2V280Ah-HV system combines 14.34kWh LiFePO4 modules in five-to-fourteen-module series stacks. Configurations cover 256-716.8V nominal voltage and 71.68-200.7kWh nominal energy. The catalog lists fan cooling, CAN/RS485 communication, 140A recommended current, 170A maximum current and an IP20 indoor enclosure. It is intended for engineered commercial storage systems rather than plug-and-play residential installation.
For commercial storage integrators that need a broad high-voltage window and higher current without moving to the 314Ah maximum-capacity module.
Technical values are based on the supplied LeforESS catalog and remain subject to the selected model datasheet.
Commercial HV Battery Building Block
71.68-200.7kWh for Commercial Storage Integration
This platform targets larger DC buses and higher throughput. Project viability depends on the PCS window, site load curve, thermal conditions and the approved number of series modules.
Commercial solar shifting
Store daytime PV production for scheduled discharge when site demand or tariffs justify the operating strategy.
Microgrid battery bank
Pair the high-voltage stack with a compatible PCS and site controller after confirming islanding, generator and protection requirements.
EPC-configured backup
Support selected facility loads where the energy, power and redundancy study has been completed by the project team.
Verified Product Data
51.2V280Ah-HV System Specifications
The table separates single-module data from full-system ranges so buyers can size both logistics and electrical integration correctly.
| Module | Cell chemistry | LiFePO4 |
|---|---|---|
| Module energy | 14.34kWh | |
| Nominal voltage | 51.2V | |
| Capacity | 280Ah | |
| Module dimensions (W x D x H) | 734 x 550 x 220mm | |
| Approximate module weight | 110kg | |
| System | Modules in series | 5-14 optional |
| Nominal voltage | 256-716.8V | |
| Operating voltage listed | 232-649.6V | |
| Nominal energy | 71.68-200.7kWh | |
| Usable energy listed | 64.51-180.63kWh | |
| Charge/discharge current | Recommended 140A; maximum 170A | |
| Environment | Working temperature | -10-55C |
| Cooling | Fan cooling | |
| Humidity | 5%-95% RH | |
| Altitude | <=2000m | |
| Enclosure rating | IP20 | |
| Integration | Communication | CAN, RS485 |
| Installation | Stack mounting or iron-frame mounting | |
| System dimensions (W x D x H) | 610 x 734 x 1430-1562mm listed | |
| Approximate system weight | 572-1562kg | |
| Storage temperature | 0-35C | |
| Reliability | Recommended depth of discharge | 90% |
| Cycle life listed | >=8000 cycles | |
| Warranty listed | 5 years | |
| Certification listed | CE, UN38.3, MSDS |
Product specifications and configuration options must be confirmed against the selected model datasheet before ordering. The listed maximum operating voltage is lower than the nominal voltage of a fourteen-module stack. Confirm the voltage table and allowable module counts with the latest engineering datasheet before quoting a PCS.
High-Current Integration
Fan-Cooled Modules for Sustained Project Loads
The catalog's fan-cooled module design supports the higher current class, but it also creates airflow, acoustic and service considerations that must be reflected in the equipment room layout.
Technical Buying Questions
280Ah High-Voltage Project Questions
Is the system supplied as individual modules or a complete rack?
The catalog identifies stack and iron-frame mounting. The quotation should state the control box, frame, module count, cables and accessories included.
Can the system be installed outdoors?
The IP20 rating is an indoor enclosure classification. Outdoor installation requires a separately qualified cabinet and environmental design.
Why must the voltage range be reconfirmed?
The catalog lists up to 716.8V nominal but an operating range ending at 649.6V. The latest engineering table must establish the correct PCS window.
Is 170A available continuously?
The catalog identifies 140A as recommended and 170A as maximum. Continuous operating limits remain subject to temperature, SOC and the approved datasheet.