Selling a fully functional, premium SimpliPhi Power (Briggs & Stratton) SPHI-B-4.9 Lithium Iron Phosphate (LFP) solar storage battery. This unit is 2 years old, installed in a basement, and has 0 cycles (electrician stated that the battery management system reported no complete discharge/recharge cycle). Batteries have been removed from BMI, Inverter during upgrade.
SimpliPhi batteries are famous for their safety (no thermal runaway risk) and a massive 10,000+ cycle lifespan, meaning this unit has decades of peak performance left. Perfect for residential solar backups, off-grid cabins, or expanding an existing 48V system.
In basement, 1/2 flight of stairs to backyard and short stretch of grass to walkway and driveway. Three batteries available, buy 1 for $2000, but 2 for $5900, buy all three for $5700. Cash, PayPal, Zelle upon inspection.
Key Specifications
Model Number: SPHI-B-4.9
Battery Chemistry: Lithium Ferro Phosphate (LiFePO4 / LFP, cobalt-free)
Nominal DC Voltage: 51.2 VDC (Range: 48 VDC to 56 VDC)
Amp-Hours: 97 Ah
Rated Capacity: 4.98 kWh DC @ 100% Depth of Discharge (DoD) / 3.98 kWh DC @ 80% DoD
Max Continuous Charge / Discharge Rate: 48.5 amps DC (2.48 kW DC)
Max Surge Discharge Rate (10 minutes): 100 amps DC (5.1 kW DC)
Round-Trip Efficiency: 96%
Cycle Life: 10,000+ cycles at 80% DoD
Scalability: Expandable up to 72 batteries per string/system (~358 kWh total capacity)
Communications: CANbus (Closed-loop communications)
Environmental / Enclosure Rating: IP65 (suitable for indoor or outdoor wall-mounting)
Operating Temperature: -4°F to 140°F (-20°C to 60°C)
Charging Temperature: 32°F to 120°F (0°C to 49°C)
Dimensions (H x W x D): 28.5" x 23" x 8.5" (724 mm x 584 mm x 216 mm)
Weight: 160 lbs (72.6 kg)