Description

Product Description
The BSLBATT Stubby 8.8kWh 51.2V is a high-performance lithium battery engineered to deliver reliable and efficient energy storage for solar and backup power systems. Built using advanced LiFePO₄ battery chemistry, the unit provides excellent thermal stability, enhanced safety, and extended service life compared to traditional lead-acid batteries. The Stubby series is designed with a compact footprint, making it suitable for installations where space is limited while still delivering high energy output.

The battery features an integrated Battery Management System (BMS) that continuously monitors and protects against overcharging, deep discharge, overheating, overcurrent, and short circuit conditions. The system also supports battery monitoring and storage history, ensuring improved operational control and reliability. Its modular and maintenance-free design allows easy installation and scalability, making it suitable for residential solar systems, low-voltage energy storage, and off-grid applications. The Stubby battery also incorporates a built-in DC breaker and delivers high efficiency, providing consistent and dependable performance for long-term energy storage solutions.

Technical Specifications

• Battery Type: Lithium Iron Phosphate (LiFePO₄)

• Model: B-LFP48-170E

• Nominal Voltage: 51.2 V (16S configuration)

• Nominal Capacity: 172 Ah

• Nominal Energy Capacity: 8.8 kWh

• Battery Efficiency: Up to 99%

• Cycle Life: Up to 6000 cycles at recommended depth of discharge

• Design Life: Approximately 15 – 18 years

• Depth of Discharge: Up to 80 – 95% (application dependent)

• Maximum Discharge Current: 200 A

• Peak Discharge Current: 250 A (short duration)

• Recommended Discharge Current: 100 A

• Recommended Charge Current: 80 A

• Maximum Charge Current: 100 A

• Recommended Charge Voltage: 54 – 55 V

• End of Discharge Voltage: 47 – 48 V

• Self-Discharge Rate: <1% per month

• Operating Temperature (Charge): 0°C to 45°C

• Operating Temperature (Discharge): -20°C to 60°C

• Storage Temperature: -20°C to 55°C

• Integrated Battery Management System (BMS): Yes

• Safety Protections: Overcharge, over-discharge, overcurrent, short circuit, temperature protection, and cell balancing

• Monitoring Features: Battery monitoring and storage history

• Built-in DC Protection: 250 A DC breaker with on/off switch

• Scalability: Supports modular and parallel battery expansion

• Cooling Method: Passive / natural cooling

• Dimensions (L × W × H): Approximately 600 × 403.5 × 225 mm

• Weight: Approximately 73 kg

• Cell Type: Prismatic lithium cells

• Enclosure Material: Steel casing

• Installation Type: Floor or cabinet installation

• Maintenance Requirement: Maintenance-free

• Certifications: Typically compliant with lithium battery transport and safety standards (model dependent)

• Warranty: Typically 10 – 12 years depending on supplier terms