SimpliPhi Power

AmpliPHI 3.8 kWh LFP Battery 48V

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  • AmpliPHI 3.8 kWh LFP Battery, 48V
  • AmpliPHI 3.8 kWh LFP Battery, 48V Side
  • AmpliPHI 3.8 kWh LFP Battery, 48V Top


SimpliPhi Power’s PHI 3.8-MTM Battery utilizes the safest Lithium Ion chemistry available, Lithium Ferro Phosphate (LFP). No cobalt or explosive hazards that put customers at risk. By eliminating cobalt, the risk of thermal runaway, fire propagation, operating temperature constraints, and toxic coolants are reduced. When combined with our integrated high-performance Battery Management System (BMS), accessible 80A DC breaker On/Off switch and overcurrent protection (OCPD), the PHI 3.8-M Battery delivers safe, highly efficient and cost-effective service over the life of both residential and commercial installations, on or off-grid. Compatible with all industry-standard inverter charge controllers, the PHI 3.8-M Battery supports balance-of-system equipment and optimizes any power generation source – solar, wind, grid, generator – with scalable, on-demand energy storage solutions for critical back-up and daily savings on electricity bills.


PHI 3.8-M™ 48V
DC Voltages – Nominal 51.2VDC
Amp-Hours 75 Ah
Rated kWh Capacity @ C/2 3.8 kWh DC @ 100% DOD
3.04 kWh DC @ 80% DOD
MAX Discharge Rate (10 minutes) 80 Amps DC (4.1 kW DC)
MAX Continuous Discharge Rate 37.5 Amps DC (1.92 kW DC)
MAX Continuous Charge Rate 37.5 Amps DC (1.92 kW DC)
DC Voltage Range1 48 VDC to 56 VDC
Depth of Discharge1 up to 100%
Operating Efficiency 98%
Charge 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% loss per month
Cycle Life 10,000+ (@80% DOD)
Memory Effect None
Warranty Period 10 Years
Weight 86 lbs. (39.0 kg)
Dimensions 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)
Model Number PHI3.8 48V 60 VTE BRK


1. Max operating conditions. Refer to Installation Manual for recommended conditions.

  • All specifications listed are typical/nominal and subject to change without notice.
  • UN 3480, Lithium Ion battery contained in equipment, 9, II
  • UL, CE, UN/DOT and RoHS compliant components – UL Certified
  • Designed and manufactured in California, USA
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