Lithium Werks’ 18650 cells are capable of delivering high power and high energy due to their use of lithium iron phosphate battery technology.

AER18650m2A2 Energy Cells

Lithium Werks’ Lithium Iron Phosphate battery technology offers thermal-stable chemistry, faster charging, consistent output, low capacity loss over time, and superior total cost of ownership (TCO).

Based on lithium iron phosphate chemistry (LiFePO4), the cells are inherently safe over a wide range of temperatures and conditions. Whether the application requires outstanding cycle life or stable float reliability, the Lithium Werks’ 18650 cells are suitable for a wide variety of industrial, medical, military, portable devices, energy storage, and consumer electronics applications.

Our lithium iron phosphate chemistry (LiFePO4) provides the foundation for safe systems while meeting the most demanding customer requirements. Multiple layers of protection are employed at the chemistry, cell and system level to achieve an energy storage solution with superior safety and abuse tolerance compared to metal oxide lithium-ion chemistries.

18650 Energy Cell dimensions
18650 Energy Cell Dimensions

Benefits of LFP Energy Cells

  1. Energy LFP cells can be fully charged to 100% without causing accelerated battery degradation. 
  2. The phosphorus-oxygen bond in LFP cathode greatly reduces the release of oxygen, which reduces the opportunity to propagate into a thermal runaway, making LFP much safer than metal oxide cells. 
  3. LFP cathode is made from earth abundant materials making this technology more ecofriendly and price stable. 
  4. LFP Energy cylindrical cells have higher gravimetric and volumetric energy densities, are chosen for longer duration applications, and have excellent safety characteristics i.e. long life, high cycle life, and improved total cost of ownership.
  5. LFP Energy cells are designed for high energy, safety, long calendar life & high cycle life applications. They generally offer the best total cost of ownership.  


  • Industrial
  • Medical
  • Portable devices
  • Emergency lighting
  • Energy storage
  • Military equipment
  • Consumer electronics

Specifications at 23°C (unless otherwise stated)

Nominal Ratings
Voltage3.2 V
Capacity @ C/5 Typical (Min)1.8 Ah (1.7)
Energy5.76 Wh
Specific Energy133 Wh/kg
Energy Density330 Wh/L
Impedance (1kHz ACIR)< 20 mΩ
Cycle Life at 0.5C/0.5C, 100% DOD> 2000 cycles
Max. Continuous Discharge Current5.4 A (3C)
Max. Pulse Discharge Current (10s)18 A (10C)
Minimum Voltage2.0 V
Temperature-20°C to 60°C
Recommended Charge Voltage3.6 V
Recommended Charge Current≤ 0.9 A (C/2)
Max Continuous Current, >10 ºC2.7 A (1.5C)
Terminate Charge @ 3.6 V< 36 mA
Float Voltage3.5 V
Temperature0 ºC to 60 ºC
Storage Temperature-30 ºC to 70 ºC
DiameterØ18.5 +/- 0.1 mm
Length64.95 +/- 0.2 mm
Mass43.4 +/- 1.0 g
shipped @ ≤ 30% SOC
UN 3480 (UN38.3)
SafetyUL 1642, IEC 62133 (pending) 
Part Number 320749-001


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