Simpliphi Batteries PHI 3.4 M48V Lithium Ferrous Phosphate (LFP) battery 3.4kWh

SimpliPhi OES3 Lithium Ferrous Phosphate (LFP) battery 3.4kWh 48V

3.4 kWh optimized energy storage Lithium Ferrous Phosphate (LFP) battery. LFP is the safest, most environmentally benign lithium chemistry.
No heat build up – No risk of thermal runaway.
Drop in replacement for existing battery systems.
Includes built in Battery Management System (BMS).– 51.2 VDC (nom)
– 66 Ah
– 3.44 kWh
– 10 year warranty (365 cycles p.a.)
– 100% depth of dischargeDesigned and manufactured in California, USA.


Part Number PHI 3.4 M48V
Capacity (5HR) 3.4
Length 343
Width 356
Height 203
Volts 24
Approx Mass (kg) 34.8

Green Power

  • Non-toxic and non-corrosive; no off-gassing
  • Non-hazardous manufacture and disposal; SimpliPhi products are recyclable


  • No risk of thermal runaway or fire
  • Operate within a range of -4F to 140F
  • SimpliPhi products do not require ventilation or toxic liquid cooling to prevent heat build-up
  • or thermal runaway, a characteristic of other lithium ion and cobalt-based batteries

Efficiency & Durability

  • Operate at 98% efficiency for 3,000-5,000+ cycles, many times the cycle life of lithium
    cobalt-based batteries
  • Allow daily cycles over 10-year warranty period (compared to one cycle per week for other lithium-based batteries)
  • Product life expectancy of 15-20 years
  • 1/5th the operating cost per kWh over warranty period, vs. other lithium-based systems
  • No special requirements for delivery and installation; drop-in replacement for traditional batteries within existing electrical infrastructure
  • Scalable, modular and light-weight. Ideal for small and large residential or commercial installations
  • Integration with all industry standard inverter charge controllers
  • No air conditioning or active ventilaiton required



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