Briggs & Stratton PHI™ 3.8 Battery

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The PHI 3.8-M™ Battery utilizes safer Lithium Ion chemistry available, Lithium Ferro Phosphate (LFP). When combined with our integrated high-performance Battery Management System (BMS), accessible 100A DC breaker On/Off switch and overcurrent protection (OCPD), the PHI 3.8-M delivers safer, highly efficient and cost-effective service over the life of residential installations. Compatible with all industry-standard inverter charge controllers, the PHI 3.8-M supports balance-of-system equipment and optimizes any power generation source – solar, wind, grid, generator – with scalable, on-demand energy storage solutions for critical backup.

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Specs

  PHI-3.8-24V-M PHI-3.8-48V-M
DC Voltages - Nominal 25.6VDC 51.2VDC 25.6VDC 51.2VDC
Amp-Hours 151 Ah 75 Ah 151 Ah 75 Ah
Rated kWh Capacity @ C/2 3.8 kWh DC @ 100% DOD
3.04 kWh DC @ 80% DOD
3.8 kWh DC @ 100% DOD
3.04 kWh DC @ 80% DOD
Rated kWh Capacity 3.8 kWh DC @ 100% DOD
3.04 kWh DC @ 80% DOD
3.8 kWh DC @ 100% DOD
3.04 kWh DC @ 80% DOD
MAX Surge Discharge Rate (10 Minutes) 80 Amps DC (2.05 kW DC) 80 Amps DC (4.1 kW DC) 80 Amps DC (2.05 kW DC) 80 Amps DC (4.1 kW DC)
MAX Continuous Discharge Rate 75 Amps DC (1.9 kW DC) 37.5 Amps DC (1.92 kW DC) 75 Amps DC (1.9 kW DC) 37.5 Amps DC (1.92 kW DC)
MAX Continuous Charge Rate 75 Amps DC (1.9 kW DC) 37.5 Amps DC (1.92 kW DC) 75 Amps DC (1.9 kW DC) 37.5 Amps DC (1.92 kW DC)
DC Voltage Range¹ 24 VDC to 28 VDC 48 VDC to 56 VDC 24 VDC to 28 VDC 48 VDC to 56 VDC
Depth of Discharge up to 100% up to 100%
Operating Efficiency 98% 98%
Charging Temperature¹ 32° to 120°F (0° to 49°C) 32° to 120°F (0° to 49°C)
Operating Temperature¹ -4° to 140°F (-20° to 60°C) -4° to 140°F (-20° to 60°C)
Storage Temperature¹ 6 months: 14° to 77° F (-10° to 25° C)
3 months: -4° to 113° F (-20° to 45° C)
6 months: 14° to 77° F (-10° to 25° C)
3 months: -4° to 113° F (-20° to 45° C)
Self-Discharge Rate <1% loss per month <1% loss per month
Cycle Life 10,000+ (@80% DOD) 10,000+ (@80% DOD)
Memory Effect None None
Weight 86 lbs. (39.0 kg) 86 lbs. (39.0 kg)
Dimensions (W x H x D) 13.5 x 14 x 8 in. (15.5” H w/terminals) / 0.88 ft3 13.5 x 14 x 8 in. (15.5” H w/terminals) / 0.88 ft3
Warranty 10 Years 10 Years
Warranty Period 10 Years 10 Years
Efficiency Rating 98% 98%