
Anker SOLIX BP3800 Expansion Battery | For SOLIX F3800 & F3800 Plus
Equipment Type: Modular Lithium Iron Phosphate Energy Storage Module
Primary Applications: Residential backup systems, off-grid cabin power, RV/mobile workstation setups, and emergency disaster preparedness.
Performance Specifications
- Nominal Capacity: 51.2 Vdc, 75 Ah, rated at 3,840 Wh
- Expansion Port Input: Maximum 75 A
- Expansion Port Output: Maximum 170 A
- Discharge Temperature Range: -4°F to 104°F (-20°C to 40°C)
- Charge Temperature Range: 32°F to 104°F (0°C to 40°C)
- External Dimensions: 15.5 × 14.0 × 10.3 in (39.3 × 35.5 × 26.2 cm)
- Net Weight: 33 kg
Safety Features and Certifications
- Integrated BMS with active thermal management prevents cell overheating under sustained load
- Lithium iron phosphate (LFP) chemistry eliminates fire propagation risk and volatile gas emission during indoor operation
- Molded high-strength enclosure delivers shock resistance, UV stabilization, and dustproof sealing for rugged deployment
Installation and Maintenance Requirements
- Connects via single proprietary cable to host station; zero software configuration required for initial commissioning
- Power input accepts grid AC routing through host unit or direct solar array interfacing via MC4 terminals
- Preventive maintenance requires annual inspection of external seals, connection port cleanliness, and clearance zoning
Warranty and Service Information
- Warranty Duration: 5-Year Limited Coverage
- Coverage Scope: Manufacturing defects, component failure, and rapid capacity fade beyond rated cycle life
- Service Terms: Manufacturer-backed replacement protocol with standard 48-hour technical diagnostic turn-around
Branding/References
- Manufacturer: Anker SOLIX
- Model Number: BP3800 Expansion Battery
- Technical Reference: Anker SOLIX BP3800 Expansion Battery Manual
Differentiators
- Parallel scalability accommodates up to six synchronized units, achieving a maximum system reservoir of 26,880 Wh
- Electrochemical design guarantees over 3,000 full charge-discharge cycles while preserving 80 percent original capacity
| Specification | Details |
| Capacity | 51.2Vdc 75Ah / 3840Wh |
| Expansion Battery Port Input | 75A Max |
| Expansion Battery Port Output | 170A Max |
| Discharging Temperature | -4°F - 104°F | -20°C - 40°C |
| Charging Temperature | 32°F - 104°F | 0°C - 40°C |
| Dimensions | 15.5 × 14.0 × 10.3 in | 39.3 × 35.5 × 26.2 cm |
| Net Weight | 33 kg | 72 lb |