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SimpliPhi PHI 3.8 kWh 48v LFP Battery

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SimpliPhi Batteries:
  • Drop-in upgrade for traditional lead-acid batteries
  • Compared to regular lithium-ion, LiFePo is safer, contains no toxic minerals, can better handle temperature extremes, and can sustain more charge cycles
  • Built-in Battery Management System: No external ventilation, cooling, or heating required.
  • Designed and built in California

Product Information

Model Part No. Voltage Amp Hours Type Warranty Size & Weight Price
SimpliPhi PHI 3.8 kWh 48v LFP Battery958010148VDC75AhLFP (Lithium Ferro Phosphate)10-years13.5 × 8 × 14 in
78.24 lbs
Do you have questions about our SimpliPhi batteries, or questions about solar in general? Give us a call at 1-800-472-1142.


The PHI 3.8™ kWh 60 Amp deep-cycle Lithium Ferro Phosphate (LFP) battery is optimized with proprietary cell architecture, power electronics, BMS and assembly methods. It is modular, light- weight and scalable for installations that range from kWh to MWh. Provides power security and seamless integration of renewable and traditional sources of energy in conjunction with or independent of the grid: net zero, peak shaving, emergency back-up, portable and mobile.
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Features & Attributes

  • Dimensions (LxWxH): 13.5 × 8 × 14 inches
  • Weight: 78.24 lbs
  • Lithium Ferro Phosphate (LFP) chemistry: the safest Lithium Ion chemistry available
  • No cobalt, risk of thermal runaway or fire
  • Built-in accessible 80 Amp DC breaker On/Off switch
  • Built-in Battery Management System (BMS)
  • Compatible with all industry standard inverters and charge controllers
  • Battery bank-to-inverter output sizing must adhere to a 2:1 ratio: battery quantity = (inverter kW AC rating / inverter efficiency) / battery MAX Continuous Discharge Rate in kW DC
  • Maintenance-free: no ventilation, cooling or thermal regulation required
  • MPN: PHI 3.8 48v
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SimpliPhi PHI 3.8 kWh 48v LFP Battery

Spec. Sheet
Installation Manual
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Download Our Solar Battery Guide
A poorly designed system can ruin your batteries. Our Solar Battery Guide will help you size your battery bank properly and keep things running smoothly.