51.2V 280AH Energy Storage

51.2V 280Ah Energy Storage Battery Wholesale | China Factory

Wholesale 51.2V 280Ah energy storage battery from a Chinese factory. LiFePO4 6000+ cycles, 10-year warranty. MOQ: 5 units. Get a commercial quote.

Product Overview & System Integration

This 51.2V 280Ah Energy Storage battery module provides decentralized power backing for low-voltage residential and commercial infrastructure. Operating on a 16S LiFePO4 architecture, the unit delivers 14.336 kWh of nominal energy, designed for scalable multi-pack parallel expansion up to 215 kWh without external controllers. Integration with hybrid and off-grid solar systems is achieved via dual-channel CAN/RS485 communication interfaces embedded directly into the proprietary hardware. As an established China factory and manufacturer, our engineering team manages complete sheet metal mold fabrication, custom BMS firmware optimization, and multi-inverter protocol debugging. Wholesale buyers can specify customized communication baud rates, exterior paint finishes, and custom busbar geometry to match specific cabinet architectures.

Material & Technical Specifications

Quality Control & Global Standards

Every 51.2V 280Ah Energy Storage module undergoes strict manufacturing validation inside our China facility to secure zero-defect field performance. Factory operations enforce a 4-point inspection routine, including computerized cell capacity matching, automated laser welding depth verification, and 100% automated BMS function logging. As an authorized supplier, our hardware carries complete international safety credentials, including TUV, CE, and RoHS markings. Shipping lots are fully verified by UN38.3 test certifications and MSDS validation papers. Every finished production run undergoes a mandatory 24-hour dual-cycle thermal chamber aging test under full load to certify cell balance and internal resistance consistency before final packaging.

Packaging & Logistics Safety

This product is classified under Class 9 Dangerous Goods (UN3480) for ocean freight logistics. The factory utilizes specialized, dense multi-layered packing systems conforming to international maritime dangerous goods codes. Individual battery blocks are encased in molded anti-static EPE foam shells, fitted inside reinforced, moisture-resistant 7-layer export cartons. The packaged boxes are stacked onto heat-treated, fumigation-free wooden pallets, wrapped in high-strength industrial stretch film, and bound by heavy-gauge structural steel strapping. Marine container shipping units utilize heavy-duty dunnage bags, wooden choke blocks, and mechanical floor tie-downs to neutralize multi-axis movement during ocean transit.

Typical Application Scenarios

Commercial Rooftop Storage: Integrates with on-site commercial solar arrays for peak-shaving, load-shifting, and localized power self-consumption.

Solar Irrigation Stations: Supplying stable, continuous low-voltage current to deep-well agricultural water pumps and remote farming machinery networks.

RV Power & Marine Grids: High-capacity deep-cycle reserve units providing auxiliary electrical supply for long-endurance utility mobile platforms and marine houses.

Remote Telecom Stations: Providing highly stable, temperature-resilient backup banks for off-grid cell towers and remote optical line termination (OLT) hubs.

FAQ

Q: How does the internal BMS manage balancing when expanding multiple 51.2V 280Ah modules in parallel?

A: The integrated BMS uses passive and active cell balancing alongside a master-slave automatic identification protocol. When multiple modules link in parallel, the RS485 communication line synchronizes parameters across packs, automatically balancing current distribution to prevent circulating currents caused by state-of-charge (SOC) disparities between modules.

Q: What is the certified capacity retention of this LiFePO4 system over its 10-year factory warranty period?

A: Under standard operating limits of 25°C and 0.5 °C charge rates, the battery maintains a linear degradation profile. The cell chemistry guarantees a minimum of 80% retained nominal capacity at the 10-year mark or after 6000 cycles, assuming the daily depth of discharge does not cross the 80% boundary.

Q: What are the bulk manufacturing lead times for custom branding and chassis modifications for EPC contractors?

A: Standard laser-etched private labeling and packaging modifications require 7 working days post-approval. Structural variations, such as custom front-panel interfaces, specialized terminal orientations, or bespoke server-rack bracket dimensions, involve an engineering mold cycle of 20 to 25 days, with batch production commencing immediately after sample confirmation.

Call to Action (CTA)

Request a precise system wiring diagram and wholesale project quote within 24 hours. Batch OEM samples available for quality testing.