Out of stock

3.8kWh SimpliPhi Phi 3.8 Battery 48V

price as of May 21
Solar Loan from 6.99%
All Simpliphi Power products


AMP Hours75 Ah
Battery Charging Voltages 40V-57.6V
TypeLithium batteries
Voltage (VOC)48
Dimensions LxWxH13.5" x 14" x 8"
Weight78.24 lbs
ManufacturerSimpliphi Power
Manufacturer Part #PHI3.8-48V
Operating Temperatures -4° to 140°F
Warranty10 Years Manufacturer
Delivery Time 5-7 Business Days

About product


PHI 3.8kWh 60Amp 48V deep-cycle Lithium Ferro Phosphate (LFP) battery. It is modular, light- weight and scalable for any installations. 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.

  • Built-in accessible 80 Amp DC breaker On/Off switch – increases safety and simplifies installations
  • 48V LFP battery with proprietary architecture and Battery Management
  • System (BMS)—do not require ventilation, cooling or thermal regulation
  • Compatible with all industry standard inverter/charge controllers
  • Drop in replacement for lead acid
  • LFP is the safest, most environmentally benign Lithium Ion chemistry available—no risk of thermal runaway or fire
  • No AC or toxic liquid cooling – negligible parasitic drain – long cycle life
  • Non-toxic and non-hazardous recyclable materials
  • 10000 Life Cycles

SimpliPhi, Phi 3.8, Battery, 3.8kWh, LFP (Lithium Iron Phosphate), 48 volt, with 80A disco and BMS, UL-1973, PHI-3.8-48-60


  • Breaker 

      Each PHI battery with threaded stud connections is outfitted with a hydraulic/magnetic circuit breaker. This breaker increases safety during shipping and installations and allows the battery to effectively be turned “OFF” or “ON.”

  • Charging at Temperatures Below Freezing  

It is important to take necessary steps to determine the temperature of the PHI Battery prior to charging the battery, as the battery may otherwise be adversely impacted.

  • Battery Management System (BMS)

PHI Batteries are manufactured utilizing Lithium Ferrous Phosphate (LFP) cells, which are produced under exclusive patented licensed technologies, as well as proprietary materials, architecture, manufacturing processes and battery management system (BMS).

  • PHI Battery Connection Terminals

The largest PHI Battery sizes are equipped with two 3/8’’ threaded studs with a lock washer and nut. The red colored high temperature molded insert connection is for the positive lead. The black colored high temperature insert connection is for the negative lead.

Reviews & Questions

  • Reviews (2)
  • Questions (2)
I have been VERY impressed with A1 Solar store all the way from inquiring about my system to purchasing, receipt of the equipment, preparation of the equipment.
11/19/2020 03:30 pm
I want to express my appreciation for your technical support for getting my backup battery system operating last week.
09/18/2020 10:46 pm

Leave a review

Do I lose my feed-in tariff payments if I install a home battery system?
01/21/2021, 14:43
You need to ask your utility provider.You need to ask your utility provider.
Does this battery work in a power cut?
01/21/2021, 14:41
Not sure what you are asking