Solar Battery Backup System

B2B Product Specifications & Wholesale Catalog

This energy storage system stores excess photovoltaic generation for residential, commercial, and small industrial applications. Designed for solar installers, EPC contractors, and regional distributors, the system provides automated power switching during grid outages, load shifting during peak tariff hours, and self-consumption optimization.

By pairing Lithium Iron Phosphate (LiFePO4) chemistry with an integrated Battery Management System (BMS), the system provides scalable capacity configurations ranging from 5kWh to 100kWh+, matching distinct site requirements without over-engineering.

Millisecond Grid-to-Backup Response
The system monitors grid status continuously via internal telemetry. Upon a grid failure, internal contactors switch power supply to the battery bank within 10 milliseconds, maintaining continuous operation for essential loads:

• Refrigerator and lighting circuits
• Residential security systems and routers
• Commercial POS terminals and servers
• Low-power medical diagnostic devices

LiFePO4 Cell Performance & Longevity
Unlike traditional lead-acid or older lithium-ion chemistries, the system utilizes prismatic LiFePO4 cells chosen for thermal stability and chemical endurance.

Cycle Life: >= 6,000 cycles at 80% Depth of Discharge (DoD) under 25°C ambient conditions.

Usable Capacity: Up to 90% recommended DoD, maximizing available energy per cycle.

Round-Trip Efficiency: >= 95% electrical conversion efficiency.

Operating Range: Charge temperature range of 0°C to 55°C; discharge temperature range of -20°C to 55°C.

Multi-Layer Battery Management System
Safety and cycle longevity rely on active digital supervision. The integrated BMS provides real-time telemetry and hardware-level protection:

Cell Voltage Balancing: Passive balancing prevents cell drift during high-rate charging.

Thermal Regulation: Multiple NTC thermistors monitor internal cell temperatures to trigger derating or cutoff during thermal anomalies.

Electrical Protections: Hardware-backed safeguards against short circuits, over-current, over-voltage, and under-voltage.

Scalable Energy Architectures
The modular stackable design allows units to expand as energy demands increase:

Residential Tier (5kWh-20kWh): Single or stacked wall-mounted cabinets suited for single-phase homes and villas.

Commercial Tier (20kWh-100kWh): Rack-mounted modules designed for floor-standing cabinets, supporting light commercial peak shaving.

Parallel Expansion: Supports multi-unit parallel connections via communication hubs to scale total amp-hours without altering the base inverter infrastructure.

Inverter Protocol Compatibility
The system features dual communication ports (CAN 2.0 and RS485) pre-programmed with open communication handshakes. It integrates with hybrid and off-grid inverter brands, including:

• Deye
• GoodWe
• Growatt
• Victron Energy
• SMA

Remote Telemetry & Diagnostics
The optional Wi-Fi/Ethernet data logger transmits operating metrics to a cloud portal or local server:

• Real-time State of Charge (SOC) and State of Health (SOH) tracking
• Historical kWh yield and throughput logs
• Fault code logging for remote troubleshooting, reducing unnecessary on-site service dispatches.

Mechanical Protection & Compliance
Enclosure: Powder-coated cold-rolled steel cabinet with IP21 indoor rating (IP65 outdoor-rated options available upon request).

Certifications: Manufacturing standards comply with CE, UN38.3 (for safe lithium transport), IEC 62619 (safety requirements for secondary lithium cells), and RoHS directives.

Residential Backup: Protects households from frequent grid instability and offsets evening electricity bills using stored solar generation.

Commercial Peak Shaving: Reduces demand charges for retail shops and small offices by discharging stored energy during peak utility tariff windows.

Remote Microgrids: Provides baseline power generation in off-grid cabins, telecom repeater stations, and agricultural outbuildings where grid extension is economically unfeasible.

As a direct production manufacturer, we provide OEM and ODM manufacturing partnerships for regional distributors and energy brands:

Hardware Customization: Tailored nominal voltages, custom physical enclosure dimensions, and front-plate layout modifications.

Software Integration: Customized CAN protocol mapping to match proprietary inverter firmware.

Brand Localization: Silk-screened corporate logos, custom metal nameplates, multi-language user manuals, and regional compliance documentation.