Briggs & Stratton AmpliPHI™ 3.8 Battery

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The AmpliPHI™ 3.8 Battery utilizes advanced Lithium Ferro Phosphate (LFP) chemistry that eliminates cobalt which reduces the risk of thermal runaway, fire propagation, operating temperature constraints, and toxic coolants to deliver more efficient, safer and reliable energy storage. Designed and built with versatility in mind, the AmpliPHI 3.8 Battery features a Battery Management System (BMS) with closed loop communications pre-configured for industry leading inverters that reports SOC and other critical real-time data, optimizing the value of storage and functionality within balance-of-system equipment. Combined with our proven overcurrent protection (OCPD) and accessible 100 Amp DC breaker On/Off switch, installation time is reduced and safety is increased during set-up, making it an ideal solution for battery replacement, expansion of existing systems, or as a new installation for residential and commercial systems, on and off-grid, scalable up to 60 batteries.

  AmpliPHI-3.8-48
DC Voltages – Nominal 51.2 VDC
Amp-Hours 75 Ah
Rated kWh Capacity 3.8 kWh DC @ 100% DOD
3.04 kWh DC @ 80% DOD
MAX Surge Discharge Rate (10 Minutes) 100 amps DC (5.1 kW DC)
MAX Continuous Discharge Rate 37.5 Amps DC (1.9 kW DC)
MAX Continuous Charge Rate 37.5 Amps DC (1.9 kW DC)
DC Voltage Range¹ 48 VDC to 56 VDC
Depth of Discharge up to 100%
Charging Temperature¹ 32° to 120° F (0° to 49° C)
Operating Temperature¹ -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)
Self-Discharge Rate < 1% per month (when off)
Cycle Life 10,000+ cycles (@ 80% DOD)
Memory Effect None
IP Rating N/A
Weight 86 lbs. (39 kg)
Dimensions (W x H x D) 13.5 x 14 x 8 in. (15.5” H w/terminals) / 0.88 ft3
(34.3 x 35.6 x 20.3 cm / 0.025 m3)
Warranty Period 15 Years
Terminals 3/8 IN (10 mm)
Battery Cables 6 AWG MINIMUM
Installation Manual

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