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Rechargeable Lithium Iron Phosphate Battery

LiFePo4 Performance Curves

General Performance Characteristics of Li-Ion Batteries

Nominal Voltage (V) 3.6 3.6 3.2 2.4
Operating Voltage/Cell (V) 3.00 - 4.20 3.00 - 4.20 2.50 - 3.65 1.80 - 2.85
Operating Temperature (°C) 0 to 45 0 to 45 0 to 55 -20 to 45
Specific Energy (Wh/KG) 200 - 260 150 - 220 100 - 120 70 - 80
Max. Charging Current 0.7 C (3 Hours Charging Time up-to 4.20V/Cell 1 C (3 Hours Charging Time up-to 4.20V/Cell) 1C (3 Hours Charging Time up-to 3.65V/Cell) 5 C (1 Hour Charging Time up-to 2.85V/Cell)
Max. Discharge Current 1 C up-to 3.0V/Cell 1 C up-to 2.50V/Cell 1 C up-to 2.50V/Cell 10 C up-to 1.80V/Cell
Life Cycles @ 80% DoD @ 25°C 500 1000 - 2000 1000 - 3000 3000 - 5000

Note: LFP battery is safe and reliable at high temperatures for a long-life performance.

Safety Recommendations

The SOA of Lithium Ion cells is bound by current, temperature and voltage.
  • LFP cells may get damaged and may burst into flames if over charged above a recommended voltage.
  • LFP batteries may get damaged if allowed to be discharged below a recommended cut-off voltage
  • LFP batteries lifetime may get drastically reduced if operated beyond recommended temperature range.
  • LFP batteries lifetime may get reduced if discharged at too high current or charged too fast.

LFP battery safety BMS is must.

  • To prevent the voltage of any cell exceeding the limit
  • To prevent the temperature of any cell exceeding the limit
  • To prevent voltage dropping of any cell below a certain limit
  • To prevent the charging current from exceeding the limit
  • To prevent the discharging current from exceeding the limit
A BMS is essential when using a LFP battery to control voltage, current and temperature within the recommended limits.



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